someone solve #2 with proof please!

Someone Solve #2 With Proof Please!

Answers

Answer 1

The distance between the base of the second ladder and the wall is 1.6 meters.

How far is the base of the second ladder from the wall?

So we know that the two ladders are parallel, then the triangles that we are forming (between the ladder, the floor, and the wall) are two similar triangles.

We know that the length of the first ladder is 4.2m

The length of the second ladder is 5.6 m

Then the scale between these sides is:

4.2m*k = 5.6m

k = 5.6m/4.2m =  4/3

Then the distances of the bases are related by tha same scale, the distance between the base and the wall of the second base is:

(4/3)*1.2 m= 1.6m

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Related Questions

I need help with this please don’t skip

Answers

Therefore, each drink would have approximately 18.67 grams of sugar if the amount of sugar was redistributed evenly.

What is distribution?

In statistics, distribution refers to the pattern of values that a variable can take and how frequently those values occur. It is a mathematical function that describes the probability of occurrence of each possible outcome in a set of events.

There are various types of distributions such as normal distribution, binomial distribution, Poisson distribution, and exponential distribution. Each distribution has a specific shape and characteristics, which can be described by its mean, variance, skewness, and kurtosis.

by the question.

Let's say the amounts of sugar in the six drinks are:

Drink 1: 10 grams

Drink 2: 20 grams

Drink 3: 15 grams

Drink 4: 25 grams

Drink 5: 30 grams

Drink 6: 12 grams

To redistribute the sugar evenly, you would need to add up the total amount of sugar and divide it by the number of drinks. In this case:

Total amount of sugar = 10 + 20 + 15 + 25 + 30 + 12 = 112 grams

Number of drinks = 6

Redistributed amount of sugar = Total amount of sugar / Number of drinks

Redistributed amount of sugar = 112 / 6

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Let y be the value​ (in thousands of​ dollars) of a car when it is x years old. Some pairs of values of x and y are listed in the table. Find an equation that describes the relationship between x and y.

Answers

Answer:

X × Y

Step-by-step explanation:

Because you need do the multiplication between the time and the money

Percentages question

Answers

The price of the watch before the discount was £25.

What is percentage?

A percentage expresses a number as a fraction of 100. It is often used to describe a portion or share of a whole or to express a rate or proportion. Percentages can be calculated by dividing the part by the whole and multiplying by 100. Percentages are used in a wide variety of contexts, such as finance, economics, statistics, and science.

Jasοn bοught a watch and a pair οf trainers fοr a tοtal price οf £53.55.

We are given that, Jasοn received a 15% lοyalty discοunt οn the whοle price that includes nοt οnly the price οf the pair οf trainers but alsο the price οf the watch.

Nοw, the discοunted price becοmes £(100 - 15) = £85, when the οriginal price is £100.

Then, the discοunted price becοmes £1, when the οriginal price is

= [tex]$\£ \frac{100}{85}[/tex]

Then, the discοunted price becοmes £53.55, when the οriginal price is  

[tex]$\frac{100}{85} \times 53.55 = \£ 63[/tex]

Nοw, we are given that, the trainers were priced at £38.

This means that the price οf the watch befοre the discοunt is,

£(63 - 38) = £25.

Hence, the price οf the watch befοre the discοunt is £25.

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A company sells widgets. The amount of profit, y, made by the company, is related to the selling price of each widget, x, by the given equation. Using this equation, find out what price the widgets should be sold for, to the nearest cent, for the company to make the maximum profit.

=

3

2
+
239


2268
y=−3x
2
+239x−2268

Answers

The maximum profit is $2492.08.

What is the selling price?

The cost a consumer pays to purchase a good or a commodity is known as the selling price. It is a price that is higher than the cost price and includes a profit margin. The cost of an item when acquired is referred to as its selling price (S.P.).

Here, we have

Given: A company sells widgets. The amount of profit, y, made by the company, is related to the selling price of each widget, x, by the given equation.

y = -3x² + 239x - 2268

At a maximum profit, dy/dx = 0, hence:

dy/dx = -6x + 239

0 = -6x + 239

x = 239/6

x = 39.8

The maximum profit is gotten when the selling price of each widget is 39.8. Hence:

y = -3(39.8)² + 239(39.8) - 2268

y = 2492.08

Hence,  the maximum profit is $2492.08.

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Someone please answer this
30 points+Brainliest

Answers

Answer:

122 degrees.

Step-by-step explanation:

To calculate the measure of the sector that represents the probability of a rainy day using a spinner, we need to first determine the angle of the sector that represents the probability of a rainy day.

The probability of a rainy day is given as P(raining) = 0.34, which means that out of 100 days, 34 are rainy. Therefore, we can express the angle of the sector as:

Angle of sector = Probability of rain * Total angle of the spinner = 0.34 * 360 = 122.4 (rounded to the nearest degree)

So the measure of the sector that represents the probability of a rainy day is 122 degrees (rounded to the nearest degree).

Therefore, the answer is 122 degrees.

Answer:122°

Step-by-step explanation:

we have a 34% probability that it will rain and 66% that it won't rain. and full spin is 360 degrees which we can also symbolize as 100%.

so, if  

        360-----------100%

         x---------------34%

x=360*34/100≈122°

Add. Write your answer in the simplest form. 2 5/8 + 3 2/5​

Answers

Answer:

6 1/40

Step-by-step explanation:

21/8 + 17/5

105/40 + 136/40 = 241/40

241/40= 6 1/40

a truck hauled 136 cubic feet of sand to a construction site. the sand dumped into a cone shaped pile 6 feet in height. what is the approximate diameter of sand in feet?

Answers

The approximate diameter of the pile of sand in the cone that sand was dumped in is 9.30 feet.

What is the approximate diameter?

A cone is a 3-dimensional object that consists of a ciruclar base and a vertex. The diameter is twice the length of the radius.

Radius = √[volume / (1/3 x π x height)]

=> Radius=√[136 / (1/3 x 22/7 x 6)]

=> Radius=√[136 / 6.29 = 4.65

Hence the Diameter = 4.65 x 2 = 9.30 feet

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Convert to Hindu-Arabic Numerals
(12)

Answers

Answer:

well none of those are technically correct because A is 11, B is 7, C is 0, and D is 18

all of those answers are Mayan numerals

What is the Average Rate of Change of the graph below from -5 ≤ t ≤ 8
f(t)

Answers

Answer:

average rate of change = [tex]\frac{6}{13}[/tex]

Step-by-step explanation:

the average rate of change of f(t) in the closed interval [ a, b ] is

[tex]\frac{f(b)-f(a)}{b-a}[/tex]

here [ a, b ] = [ - 5, 8 ] , then

f(b) = f(8) = 6 ← point (8, 6 ) on graph

f(a) = f(- 5) = 0 ← point (- 5, 0 ) on graph

then

average rate of change = [tex]\frac{6-0}{8-(-5)}[/tex] = [tex]\frac{6}{8+5}[/tex] = [tex]\frac{6}{13}[/tex]

Profit is defined as total revenue minus total cost. The profit function of a company that manufactures and sells x units of a product is given by P(x) = R(x)-C(x), where
P represents the company's profits, R represents the company's revenue, and C represents the company's cost. If a company sells a calculator for $13, its revenue
function is R(x) = 13x. The cost of each calculator manufactured is $9. In addition, it renewed its lease on the plant, so its weekly fixed costs are $1240.
(a) Determine the profit function. (b) Determine and interpret P(700).

Answers

Answer:

a.) P(x)= 4x - 1240

b.) make $1,560 profit in 1 week by selling 700 calculators

Step-by-step explanation:

a.) P(x)=R(x)-C(x)

R(x)=13x; C(x)=9x + 1240   assuming they are asking for profit in a week

P(x)= 4x - 1240

b.) P(700) = 4(700) -1240 = 1560

Find the measure of X

Answers

Answer:

[tex]c=18.8389[/tex]

Step-by-step explanation:

To find hypotenuse [tex]C[/tex] use formula:

 [tex]\text{sin}(\alpha )=\frac{a}{c}[/tex]

After substituting [tex]\alpha =48^o[/tex] and [tex]a=14[/tex] we have:

[tex]\text{sin}(48^o)=\frac{14}{c}[/tex]

[tex]0.7431=\frac{14}{c}[/tex]

[tex]c=\frac{14}{0.7431}[/tex]

[tex]c=18.8389[/tex]

Answer:31

Step-by-step explanation:

14/2=7 48/2= 24 7+24=31

Need the area of the parallelogram

Answers

Answer:

28  

Step-by-step explanation:

a = b * h

a = 4 * 7

4 acts as the base

7 acts as the height

there is a right angle to support this.

John deposits $5025 into a savings account that has an interest rate of 9.5%. The account is compounded monthly for the next 18 years, how much will be in the account? (round your answer to the nearest tenth)
Group of answer choices

a. 30521.52
b. 25602.07
c. 27596.60
d. 29854.20

Answers

John deposits $5025 into a savings account that has an interest rate of 9.5%. The account is compounded monthly for the next 18 years. So in the account the amount will be $27596.60. Option c is correct.

What is compound interest?

Cοmpοund interest, alsο knοwn as interest οn principle and interest, is the practise οf adding interest tο the initial amοunt οf a lοan οr depοsit. It οccurs when interest is reinvested, οr added tο the bοrrοwed capital rather than paid οut, οr when the bοrrοwer is required tο pay it, sο that interest is made the fοllοwing periοd οn the initial amοunt + any accumulated interest. In business and ecοnοmy, cοmpοund interest is cοmmοn.

We can use the Cοmpοund interest below-

[tex]\rm A = P(1 + \frac{r}{n})^{nt}[/tex]

where,

A = final amount

P = initial principal balance

r = interest rate

n = number of times interest applied per time period

t = number of time periods elapsed

Given,

Time periods (t)= 18years

n = 12 months

Interest in a year (r)= 9.5% or 0.095

Principial amount (P)= $5025

Lets solve for final amount :

[tex]\rm A = 5025(1 + \frac{0.095}{12})^{12 \times 18}[/tex]

A ≈ 27596.59

That is nearby $27596.60.

In the account the amount will be $27596.60. Thus, option c is correct.

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Answer: it is  c. 27596.60

Pls help step by step (special right triangles)

Answers

Value of base and hypotenuse of triangle are 9√3 and 18 respectively.

Define right triangle

A right triangle is a triangle with one interior angle measuring 90 degrees, known as a right angle. The side opposite to the right angle is called the hypotenuse, and the other two sides are known as the legs of the right triangle. The length of the hypotenuse can be found using the Pythagorean theorem,  that the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the legs.

Height of triangle=9

Base of triangle=y

Hypotenuse of triangle=x

Using trigonometric ratio

Sin30°=Height/Hypotenuse

½=9/x

x=18

Cos30°=Base/hypotenuse

√3/2=y/18

y=9√3

Hence, value of base and hypotenuse of triangle are 9√3 and 18 respectively.

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If your answer is correct I will give brainliest

Answers

I think it is A... if the original is Red. It is reflected across the x-axis.

I hope this helps !

pls help!!! right answer only!! Find the equation of a line perpendicular to y= −3x − 10 that passes through the point (9,−2).

Answers

Answer:

y = [tex]\frac{1}{3}[/tex] x - 5

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = - 3x - 10 ← is in slope- intercept form

with slope m = - 3

given a line with slope m then the slope of a line perpendicular to it is

[tex]m_{perpendicular}[/tex] = - [tex]\frac{1}{m}[/tex] = - [tex]\frac{1}{-3}[/tex] = [tex]\frac{1}{3}[/tex] , then

y = [tex]\frac{1}{3}[/tex] x + c ← is the partial equation

to find c substitute (9, - 2 ) into the partial equation

- 2 = [tex]\frac{1}{3}[/tex] (9) + c = 3 + c ( subtract 3 from both sides )

- 5 = c

y = [tex]\frac{1}{3}[/tex] x - 5 ← equation of perpendicular line

8) Use a proportion to solve this problem: Two towns are 460 km apart. If the scale on the map is 3 cm to 45 km, how far apart are the towns on the map?

Answers

The distance between the two towns on the map was found to be 30.67 centimeters by setting up and solving a proportion between the distances on the map and the actual distances.

The problem provides us with a scale on the map of 3 cm to 45 km, which means that every 3 centimeters on the map represents 45 kilometers in the actual world. Let x be the distance between the two towns on the map in centimeters. Using the proportion, we can set up the relationship between the distances on the map and the actual distances as follows:

3 cm / 45 km = x cm / 460 km

Here, we set up a ratio between the distance on the map and the actual distance, where the distance on the map is x centimeters and the actual distance between the towns is 460 kilometers. We can then cross-multiply to solve for x:

45 km * x cm = 3 cm * 460 km

This gives us:

45x = 1380

x = 1380 / 45

x = 30.67 cm

Therefore, the distance between the two towns on the map is 30.67 centimeters.

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What can be said about the relationship between triangles and circles? Check all that apply

Answers

The correct answer of the folowing question is option B and d in context to the circle and triangle

How to solve the problem?

Triangles and circles have a close relationship in geometry, and several interesting properties and theorems connect them.

One triangle inscribed in circle: This statement is true, and it refers to the property of a circle that can be inscribed in a triangle. In other words, if we draw a circle that passes through all three vertices of a triangle, then the triangle is said to be inscribed in the circle. The center of the circle is called the circumcenter of the triangle, and it is the intersection point of the perpendicular bisectors of the sides.

Many triangles inscribed in circle: This statement is also true, as there are many different triangles that can be inscribed in the same circle. For example, if we draw a circle and pick any three points on its circumference, then we can connect these points to form a triangle that is inscribed in the circle.

One circle inscribed in triangle: This statement is true, and it refers to the property of a triangle that can be inscribed in a circle. In other words, if we draw a circle that is tangent to all three sides of a triangle, then the circle is said to be inscribed in the triangle. The center of the circle is called the incenter of the triangle, and it is the intersection point of the angle bisectors.

Many circles inscribed in triangle: This statement is false, as there can only be one circle that is inscribed in a given triangle. However, there are other circles that can be associated with a triangle, such as the circumcircle and the excircles. The circumcircle is the circle that passes through all three vertices of the triangle, while the excircles are the circles that are tangent to one side of the triangle and the extensions of the other two sides.

In summary, triangles and circles are closely related in geometry, and their properties and theorems are important in various areas of mathematics and science.

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Look at this table:
y =
X y
4
6
7
3
5
-24
-29
-34
-39
-44
Write a linear (y = mx + b), quadratic (y = ax2), or exponential (y = a(b)*) function that
models the data. Help plis

Answers

It should be noted that the function that can model the data is a linear function since there's a constant difference or -5.The linear function is y = -5x - 9.

How to explain the function.

In this case, to determine whether the data is best modeled by a linear, quadratic, or exponential function, we can first plot the data points and see what type of curve they form. However, since we are only given five data points, it can be difficult to make a definitive determination.

One way to estimate the type of function is to look at the differences between the y values. For example, if the differences between the y values increase by a constant amount, then the data may be best modeled by a linear function. If the differences increase by a constant squared amount, then the data may be best modeled by a quadratic function.

Here, the constant difference will be:

= -29 - (-24)

= -5

This depicts a linear function.

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Doug Smalley a store manager is married and earns $485 a week. He claims 2 allowances. Find the federal income tax withheld each week

Answers

Dοug Smalley's weekly federal incοme tax deductiοn wοuld be $24 as a result as the table shοws that $24 in federal incοme tax.

what is amοunt ?

A quantity οr sum οf sοmething is generally referred tο as a "amοunt," and it is typically quantified in units οr numbers. It can be used tο a wide range οf situatiοns, including thοse in everyday life, mathematics, and mοney. An amοunt, fοr instance, might be a sum οf mοney that is invested, οwed, οr paid. An amοunt in mathematics can be either a quantity οr a numerical value. In daily life, an amοunt may relate tο the tοtal cοst οf the prοducts in a shοpping basket οr the number οf materials required fοr a recipe.

Dοug Smalley's file status (married) and the number οf allοwances requested need us tο apply the IRS tax tables in οrder tο determine the amοunt οf federal incοme tax deducted frοm his mοnthly wages (2).

Determine the emplοyee's weekly grοss pay: $485

Remοve the amοunt οf the emplοyee's claimed weekly allοwances. The amοunt is $162.80 ($86.40 fοr the first allοwance and $76.40 fοr the secοnd allοwance) fοr twο allοwances in 2021.

$485 - $162.80 = $322.20 (adjusted grοss pay) (adjusted grοss pay)

Find the rοw fοr Dοug's adjusted grοss pay οf $322.20 and the cοlumn fοr his marital status (married) and the amοunt οf allοwances claimed using the IRS tax tables (2).

The table shοws that $24 in federal incοme tax wοuld be withheld each week.

Dοug Smalley's weekly federal incοme tax deductiοn wοuld be $24 as a result as the table shοws that $24 in federal incοme tax.

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Find the federal income tax withheld each week using the Weekly Payroll tables on pages 7-10.

Doug Smalley, a store manager, is married and earns $485 a week. He claims 2 allowances.

Write a function that represents the situation, and then answer the question.


You purchase a car in 2020 for $25,000. The value of the car decreases by 14% each year. What will the value of the car be in 2025 (t=5)

Answers

This should output: The value of the car in 2025 will be $11730.3 which function means that the value of the car in 2025 will be approximately $11,730.30.

what is function?

A function appears to be a hyperlink between two sets of numbers in mathematics, where each member of the first set (referred as the domain) corresponds to a certain representative of the second set (called the range). In other utterance, a function takes input from a set and produces output by another. Inputs are frequently represented by the variable x, and outputs are represented by the variable y. A function can be represented by a formula or a graph. The method y = 2x + 1 is an example of a conceptual model in which each value assigned to x yields a value of y.

To calculate the value of the car in 2025, we need to determine the value of the car after each year of depreciation from 2020 to 2025. We can represent this situation using the following function:

[tex]value = 25000 * (0.86 ** years)\\ return value\\value_2025 = car_value(5)\\print("The value of the car in 2025 will be $" + str(round(value_2025, 2)))\\[/tex]

This should output: The value of the car in 2025 will be $11730.3 which means that the value of the car in 2025 will be approximately $11,730.30.

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Katy is making a poster for the science fair. She will use 1/6 of
the poster for the title and 3/6 of the poster for a diagram of
her experiment. The rest of the poster will be used for the
results of her experiment. How much of the poster will Katy
use for the results? Show your work

Answers

Answer:

1/3 or 2/6

Step-by-step explanation:

6/6 is a whole. If you subtract 1/6 from 6/6, you get 5/6. Then, subtract 3/6 from 5/6. You get 2/6 remaining for the result. 2/6 simplified is 1/3.

Answer:

2/6

Step-by-step explanation:

We Know

She will use 1/6 of the poster for the title and 3/6 of the poster for a diagram of her experiment.

1/6 + 3/6 = 4/6

So, 4/6 of her poster has been used.

The rest of the poster will be used for the results of her experiment

How much of the poster will Katy use for the results?

We Take

6/6 - 4/6 = 2/6

So, 2/6 of her poster will be use for the result.

Which of the following sets of numbers could not represent the three sides of a triangle?

Answers

It is the first option 4, 17, and 23

There is a rule of sides in a triangle that states "the sum of the lengths of two sides is always greater than the third side"

so how you would solve this is by process of elimination. Add two lengths from each number set to see if they follow the rule.

When you do this, all of the number sets follow the rule except for the first one, because 4 plus 17 is 21, and it is less than 23. This means it does not follow the rule.

Hope this helps :)

Hello I need help with this

Answers

If the number of school districts in Indiana were proportional to the number of school districts in Illinois, we would expect to see 440 school districts in Indiana.

What is Ratio?

Ratios are used to compare different parts of a whole, to compare different amounts of something, or to compare different measurements of the same thing.

The expected number of school districts in Indiana can be calculated by using the population of the two states.

We know that Illinois has 859 school districts and 12.9 million people, and Indiana has 295 school districts and 6.6 million people.

To determine how many school districts we would expect to see in Indiana if they were proportional to the number in Illinois, we can set up a proportion:

⇒number of school districts in Indiana/number of school districts in Illinois = population of Indiana/population of Illinois

⇒number of school districts in Illinois/number of school districts in Indiana = population of Illinois/population of Indiana

We can rearrange this proportion to solve for the number of school districts in Indiana:

⇒number of school districts in Indiana/number of school districts in Illinois = population of Indiana/population of Illinois

⇒number of school districts in Illinois/number of school districts in Indiana = population of Illinois/population of Indiana

Substituting the given values, we have:

number of school districts in Indiana =

6.6/12.9×859 ≈ 440

number of school districts in Indiana=

12.9 /6.6 ×859≈440

Rounding this to the nearest whole number, we would expect to see about 440 school districts in Indiana if they were proportional to the number in Illinois.

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What is the length of the hypotenuse of a 45°-45°-90° triangle with leg length 5√3?
D. 10√6
A. 2√6
B. 5√6
C. 10√3

Answers

The response is B) 5√6 in accordance with the provided assertion.

What in mathematics is the hypotenuse?

The hypotenuse of a right triangle is its longest side; its "opposite" side is the side that confronts the angle in issue; and its "adjacent" half is the side that faces it.

In a 45°-45°-90° triangle, the two legs are congruent, and the hypotenuse is equal to the leg multiplied by √2.

In this case, the leg length is given as 5√3.

Thus, the hypotenuse will have the following length:

hypotenuse = leg x √2 = 5√3 x √2 = 5√(3 x 2) = 5√6

Therefore, the answer is B) 5√6.

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two students are trying to finish labeling the number line with the base 10 logarithmic expression that equal 2. Dylan say the missing logarithm should be log 505 because 505 is halfway between 10 and 1000, just like 2 is halfway between 1 and 3 . Jakob disagree. he says the miss logarithm should be log 100 . Which student is correct

Answers

Answer:

Jakob is correct.

The base 10 logarithmic function is a continuous function, which means that the distance between any two consecutive values on the number line is the same. Therefore, if 2 is halfway between 1 and 3, the value of the logarithm that is halfway between log 1 and log 3 should be the average of log 1 and log 3, which is:

(log 1 + log 3) / 2 = (0 + 0.477) / 2 = 0.2385

To find the value of x such that 10^x = 505, we can take the logarithm of both sides using base 10:

log 10^x = log 505

x = log 505

Using a calculator, we can find that log 505 is approximately 2.702.

To find the value of x such that 10^x = 100, we can take the logarithm of both sides using base 10:

log 10^x = log 100

x = log 100

Using a calculator, we can find that log 100 is exactly 2.

Therefore, the logarithm that is equal to 2 is log 100, not log 505.

Help with math problems

Answers

Answer:

The answer is 7d < -6

Step-by-step explanation:

3d-8<4d+2

3d+4d<-8+2

7d<-6

Un constructor debe decidir entre rentar o comprar una máquina excavadora. Si fuese a rentar la máquina, el costo de la renta sería de $3,000 mensuales (sobre la base de un año) y el costo diario (gas, aceite y operador) sería de $180 por cada día que la máquina se utilice. Si él fuese a comprarla, sus costos fijos anuales serían de $20,000 y los costos diarios de operación y mantenimiento serían de $230 por cada día que la máquina se utilizara. ¿Cuántos días al año por lo menos, tendría que utilizar el constructor la máquina para justificar la renta en lugar de la compra?

Answers

Answer:

Para decidir si es mejor rentar o comprar la máquina excavadora, se debe calcular el costo anual de cada opción y compararlos.

Costo anual de renta = Costo de renta mensual x 12 meses + (Costo diario x Días de uso)

Costo anual de renta = 3000 x 12 + (180 x Días de uso)

Costo anual de renta = 36000 + 180D

Costo anual de compra = Costo fijo anual + (Costo diario x Días de uso)

Costo anual de compra = 20000 + (230 x Días de uso)

Para encontrar el número mínimo de días de uso que justificarían la renta en lugar de la compra, se debe igualar ambos costos anuales:

36000 + 180D = 20000 + 230D

50D = 16000

D = 320

Por lo tanto, el constructor tendría que utilizar la máquina excavadora al menos 320 días al año para justificar la renta en lugar de la compra.

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A ladder is placed against a building forming an angle of elevation of 52. If it reaches the building 12 feet above the ground, how far is the foot of the ladder from the building?

Answers

We can use trigonometry to solve this problem. Let x be the distance from the foot of the ladder to the building, and let y be the length of the ladder. Then, we have:

tan(52) = y/x (since tangent = opposite/adjacent, and y is opposite to the angle of elevation and x is adjacent)

We also know that the ladder reaches 12 feet above the ground, so we have:

y = 12 + x (since y is the hypotenuse of the right triangle formed by the ladder, the ground, and the building)

We can substitute the second equation into the first to get:

tan(52) = (12 + x)/x

Simplifying this equation, we get:

tan(52)x = 12 + x

Using a calculator to find the tangent of 52, we get:

1.2799x = 12 + x

Solving for x, we get:

0.2799x = 12

x = 42.87 feet (rounded to two decimal places)

Therefore, the foot of the ladder is approximately 42.87 feet away from the building.

Exercise 5.2.7 In each case show that the statement is true or give an example showing that it is false. a. If {x, y} is independent, then {x, y, x+y} is in dependent. b. If {x, y, z} is independent, then {y, z} is indepen- dent. c. If {y, z} is dependent, then {x, y, zj is dependent for any x d. If all of xi, X2, ..., Xx are nonzero, then {xi, x2, ..., x*} is independent e. If one of xi. X1, X2, , Xk İs zero, then {xi, X2, ..., xk^ is dependent.

Answers

The statement which is correct is: If {α, β} is independent, then {w₁, w₂, w₁+ w₂} is in dependent.

In vector space theory, a set of vectors is said to be linearly independent if there is no non-trivial linear combination of vectors equal to vector zero. If such a linear combination exists, the vectors are said to be linearly dependent. These concepts are central to dimension definitions.

The definition of linear dependence and the ability to determine whether a subset of vectors in a vector space are linearly dependent is essential to determining the dimensionality of a vector space.

According to the Question, we know that:

{w₁, w₂, w₃} are linearly independent.

Let, α₁, α₂, α₃ such that

α₁w₁ + α₂w₂+ α₃w₃ = 0

and, α₁ = α₂ = α₃ = 0

Again considering the following, we can say that:

{w₁, w₁+ w₂, w₁+w₂+w₃} such that:

β₁(w₁) + β₂(w₁+ w₂) + β₃(w₁+ w₂+ w₃) = 0

Here, the dependent variable is {α,β} and { w₁+ w₂+ w₃}

To learn more about dependent variable, click here:

brainly.com/question/30094324

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