A vertical pole, 75 feet tall, casts a shadow onto the ground. If the angle of elevation from the tip of the shadow on the ground to the top of the pole is θ=60∘, use the dimensions given to find the length of the shadow, a, to the nearest tenth of a foot. (Do not include units in your answer)

Answers

Answer 1

The length of the shadow, h, to the nearest tenth of a foot is 86.6feet

To get the length of the shadow from the given question, we will use the trigonometry SOH CAH TOA

The required setup will give a right-angled triangle.

If a vertical pole, 75 feet tall, casts a shadow onto the ground, the opposite side of the triangle as shown will be 75 feet

The angle of elevation is 60 degrees

The length of the shadow will be the hypotenuse of the triangle as shown:

According to the trigonometry identity:

[tex]sin \theta = \frac{opp}{hyp}\\sin60^0 = \frac{75}{h}\\h = \frac{75}{sin60^0}\\h =\frac{75}{0.8660}\\h= 86.6feet[/tex]

Hence the length of the shadow, h, to the nearest tenth of a foot is 86.6feet

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A Vertical Pole, 75 Feet Tall, Casts A Shadow Onto The Ground. If The Angle Of Elevation From The Tip

Related Questions

What is the length of the diagonal of the square shown below? 5 45° 5 5 90° 5 O A. 5
B. 10
C. 5
D. 5/5
E. 5.2
F. 25​

Answers

The length of the diagonal of the square is d = 5√2.

Given that, the measure of the side of the square is 5.

We need to find the length of the diagonal of the square.

How to find the length of the diagonal of the square?

The diagonal of a square formula is d = a√2; where 'd' is the diagonal and 'a' is the side of the square.

Now, d = 5√2

Therefore, the length of the diagonal of the square is d = 5√2.

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A plumber has a fixed call out rate of $80 and has an hourly rate of $60

Answers

Answer:

do FYI kkkkkkjjj ghost oh go j

The expression for the total cost will be y = 80 + 60x.

What is an expression?

Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Given that a plumber has a fixed call-out rate of $80 and an hourly rate of $60.

The expression will be formed by assuming the hourly rate to be x dollars. The expression will be written as below:-

y = 80 + 60x

Here y is the total cost 80 is the fixed cost and x is the hourly rate.

Therefore, the expression for the total cost will be y = 80 + 60x.

The complete question is given below:-

A plumber has a fixed call-out rate of $80 and an hourly rate of $60. Write an expression for the total cost.

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Lannie has 5/12 cups of chocolate chips. She needs 1/34 cups to make one batch of chocolate chip cookies. How many batches of chocolate chip cookies can she make?

Answers

Answer:

14 batches

Step-by-step explanation:

take 5/12 and 1/34 and find the lowest common factor (204) mult 5/12 by 17

85/204 and 1/34 by 6 is 6/204 figure out how many times 6 goes into 85 about 14.17

so 14 full batches

A penny weighs 0.8oz A stack of 20 pennies is 4.3cm in theory, how tall is a stack on 1 ton of pennies?

Answers

16 oz = 1 lb
0.8 oz = 0.05 lb = 1 penny

1 ton = 2000 lbs

2000 x 20 = 40,000 pennies (in theory)

Answer:

Step-by-step explanation:

16 oz = 1 lb0.8 oz = 0.05 lb = 1 penny1 ton = 2000 lbs2000 x 20 = 40,000 pennies its all about conversions

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A parking pass is $60 for a month or $5 for a day. At what point would it make more sense to purchase the monthly pass?

Answers

it would make more sense to purchase the monthly pass at the middle of second week because if it’s $5 per day for seven days it would be $35 per week. therefore, by the middle of the week it would already $60.

The grocery store is having a sale on frozen vegetables. 3 bags are being sold for $10.35. At this rate, what is the cost of 7 bags?

Answers

Answer:

24.15

Step-by-step explanation:

10.35 x 2 = 20.7 But you still need 1 bag 1/3 of 10.35 =  3.45 Add all of them up = 24.15

Can someone help me understand this and give me the answer?

Answers

the answer is 5gh it is regular subtraction but with the letters next to them its an expression with letter basically

8-2n+3p has how many coefficients and how many variables??
PLEASE HELP ASAP

Answers

Answer:

2 coefficients

Step-by-step explanation:

2n,3p Are your Coefficients because they have variables

Step-by-step explanation:

-2 and  3 are coefficients while n and p are the variables

Assume that a simple random sample has been selected from a normally distributed population. Find the test statistic t.

Test the claim that the mean lifetime of a particular car engine is greater than 220,000 miles. Sample data are summarized as n = 23, x-bar = 226,450 and s=11,500. Use a significance level of 5%. Determine the p-value.


0.993


0.007


0.05


0.018


0.004

Answers

Using the t-distribution, it is found that the p-value of the test is 0.007.

At the null hypothesis, it is tested if the mean lifetime is not greater than 220,000 miles, that is:

[tex]H_0: \mu \leq 220000[/tex]

At the alternative hypothesis, it is tested if the mean lifetime is greater than 220,000 miles, that is:

[tex]H_1: \mu > 220000[/tex].

We have the standard deviation for the sample, thus, the t-distribution is used. The test statistic is given by:

[tex]t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}[/tex]

The parameters are:

[tex]\overline{x}[/tex] is the sample mean. [tex]\mu[/tex] is the value tested at the null hypothesis. s is the standard deviation of the sample. n is the sample size.

For this problem:

[tex]\overline{x} = 226450, \mu = 220000, s = 11500, n = 23[/tex]

Then, the value of the test statistic is:

[tex]t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}[/tex]

[tex]t = \frac{226450 - 220000}{\frac{11500}{\sqrt{23}}}[/tex]

[tex]t = 2.69[/tex]

We have a right-tailed test(test if the mean is greater than a value), with t = 2.69 and 23 - 1 = 22 df.

Using a t-distribution calculator, the p-value of the test is of 0.007.

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solve pls brainliest

Answers

Answer:

17.8 is the answer

Step-by-step explanation:

89/5 (the improper fraction of 17 4/5) divided is 17.8

Answer:

first method :

⅘ in decimal is 0.8 (4/5 = 8/10 = 0.8)

17 + 0.8 = 17.8

(this is the easiest method of doing this)

second method :

(17 × 5 + 4)/5

= 89/5

and dividing this u get 17.8

(but this is a lengthy method, as it will take time to devide)

Step-by-step explanation:

brainliest plz

Help me please (I have to write something to send a question)​

Answers

Answer:

1. This helps me to know if the answer of an opposite integer will be positive or negative by simply subtracting their absolute values then put the sign of the largest absolute value between the two.

2. By identifying first the largest absolute value of the two integers that are being add up. Without, calculations, i will know the sign of the sum.

3. the picture attached is the answer

Step-by-step explanation:

hope it will help you

Which equation matches the graph?

Answers

Answer:

Option C): f(x) = 3x - 4.

Step-by-step Explanation:

What is a Linear Function in Slope-intercept Form?

A linear function in slope-intercept form is given by f(x) = mx + b where:

"m" represents the slope, which is the measure of steepness and orientation of a nonvertical line. "b" represents the y-coordinate of the y-intercept, (0, b).  The y-intercept is the point on the graph where the line intersects the y-axis. It is also the point where the x-coordinate equals to zero.How to solve for the slope?

We can solve for the slope by using the following formula:

[tex]\displaystyle\mathsf{Slope\:(m)\:=\:\frac{Rise}{Run}\:=\Bigg(\frac{y_2-y_1}{x_2 - x_1}\Bigg)}[/tex]

Choose two points from the graph and substitute their values into the slope formula.

(x₁, y₁) = (2, 2)(x₂, y₂) = (0,-4)

[tex]\displaystyle\mathsf{Slope\:(m)\:=\Bigg(\frac{y_2-y_1}{x_2 - x_1}\Bigg)\:=\:\Bigg(\frac{2-(-4)}{2-0}\Bigg)\:=\:\Bigg(\frac{2+4}{2}\Bigg)\:=\:\frac{6}{2}\:\:=\:3}[/tex]

Therefore, the slope of the line is 3.

How to find the y-intercept (b)?

As defined in the previous section of this post, the y-intercept (0, b) is the point on the graph where it crosses the y-axis.  We can see that the line intersects the y-axis at point (0, -4). This means that the value of our y-intercept, b, is -4.

Finding the y-intercept algebraically.

Alternatively, we can solve for the y-intercept (b) by choosing a point on the graph and substitute its values into the slope-intercept form.

We will use and substitute the values of (x₁, y₁) and the slope into the function to solve for b.

(x₁, y₁) = (2, 2)Slope (m ) = 3

f(x) = mx + b

⇒  2 = 3(2) + b

⇒  2 = 6 + b

⇒  2 - 6 = 6 - 6 + b

⇒  -4 = 0 + b

⇒  - 4 = b

Hence, the value of the y-intercept is: b = 4.

Final Answer:

Based from our calculations, we can infer that the linear function that matches the graph is Option C: f(x) = 3x - 4.

__________________________Keywords:

Linear functions

Linear equations

Slope-intercept form

_______________________________

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Answer:

f(x)=3x-4

Step-by-step explanation:

The product of the Roots of the quadratic equation 2x² + 5x - 7 = 0 is​​

Answers

short ans :
Product = c/a = -7/2

long ans :
(2x + 7)(x-1) = 0
x = -7/2
x = 1
product = -7/2 • 1 = -7/2
Here a=2b=5c=-7

Product of roots

[tex]\\ \sf \longmapsto \dfrac{c}{a}[/tex]

[tex]\\ \sf \longmapsto \dfrac{-7}{2}[/tex]

Given that the function graphed is ƒ(x), what is ƒ(1)?
A) −2
B) −1
C) 1
D) 2

Answers

Answer: -2

Step-by-step explanation:

OMG I NEED HELP BADLY RN


In which quadrant does the point (3 , 19) lie?

A.
Quadrant I

B.
Quadrant II

C.
Quadrant IV

D.
Quadrant III

Answers

Answer:

Quadrant I

Step-by-step explanation:

There are four quadrants that go like this.

Quadrant I = Top Right

Quadrant II = Top Left

Qudrant III = Bottom Left

Quadrant IV = Bottom Right

As long as you can graph an equation you just need to remember the quadrants.

Which of the following are perfect squares? 2, 4, 6, 16, 20,25, x², x³, x¹⁵, x²⁰, x²⁵

Answers

Answer:

4, 16, 25, [tex]x^{2}[/tex], [tex]x^{20}\\[/tex].

Step-by-step explanation:

Answer:

16, 4, 25, x², x ²⁰

. . . . . . . .

5) Add using Place-Value diagrams: 215 six + 43 six

Answers

As I understand, we want to perform the given sum by adding the correspondent place values.

Using this method, we will see that the value of the sum is 258.

First, we define the place values as the value that each "position" has, where the reference is the decimal point.

The first place at the left of the decimal points is the units digit.

The second is the tens digit, and so on.

With this, we can rewrite te twi given numbers as:

215 = 2*100 + 1*10 + 5*143 = 4*10 + 3*1

Then the sum can be done as:

215 + 43

(2*100 + 1*10 + 5*1) + ( 4*10 + 3*1)

2*100 + (1 + 4)*10 + (5 + 3)*1

2*100 + 5*10 + 8*1 = 258

Then we have:

215 + 43 =  258

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I have to write something here to send a question)​

Answers

Answer:

how many children do you have?

Step-by-step explanation:

you said ask a question

Write an explanation to a friend about how you
would estimate 17 1/5 / 3 4/5.

Answers

Answer:

67/5

Step-by-step explanation:

17 1/5

17x5= 85 + 1= 86/5

3 4/5

3x5=15+4= 19/5

86/5 - 19/5=

86-19= 67/5

hope this helps!

Pls help I’ll brainlest

Answers

The cat is not hungry, or doesn't like the can of tuna food, which is why they refused to eat it when it was given to them.

Try to give the cat the food again and see their reaction, if that fails, try to give the cat other foods and note the reaction to determine if the cat just doesn't like the tuna in a can or just wasn't hungry at the moment.

Cual es el ángulo que equivale a 4 ángulos rectos?

Answers

ayus lng ako hahaha hshshs

help me asp HELPPPPPPPPP ME

Answers

Answer:

C is the answer

Step-by-step explanation:

Because he have most tresures.

Answer: deep diving dan

Step-by-step explanation: he dived 26 times and found 104 treasure boxes

solve this i dont know how to graph it pls tell

ASAP and i will give brainliest

Answers

Answer:

straight line through (0,4) and (2,0), shade everything above it

Step-by-step explanation:

First solve the equality, which will give you a straight line.

Then check if the inequality (the > sign) means you have to shade the area above or below it.

2x + y = 4 can easily be solved by first taking x=0, then you find y=4, hence (0,4) is a solution.

Then take y=0, then you find 2x = 4 so x=2, hence (2,0) is a solution.

Plot these two points and draw a line through them.

Now, since 2x+y has to be larger than 4, all the points to the right and above the line are valid. So that's the area you have to shade.

The tickets for a figure skating performance sold out in 4 hours. If there were 40,000 tickets sold, solve the equation 40,000−4x=0 to find the number of tickets sold per hour.

Answers

Answer: look it up

Step-by-step explanation:

Is triangle RWS triangle QWT

Answers

Answer:

Try it as a RWS triangle

Decide whether the relation defines y as a function of x. Give the domain and range.
x+y<14

Answers

Answer:

i think it is like this.                                      < means less than                                                                  

Step-by-step explanation:

let x be a and let y be any number less than 14.

a + 5 < 14

a + 5 < 14

a + 5-5 < 14-5

a + 0   <  9

a < 9

If a sum invested gains 10% each year how long will it be before it has doubled its
value?

Answers

Using an exponential equation, it is found that it will be 7.3 years before the value is doubled.

The equation for an increasing exponential function is given by:

[tex]A(t) = A(0)(1 + r)^t[/tex]

In which:

A(0) is the initial amount.r is the growth rate, as a decimal.

In this problem:

Gains 10% each year, thus [tex]r = 0.1[/tex].

The doubling time is t for which [tex]A(t) = 2A(0)[/tex], then:

[tex]A(t) = A(0)(1.1)^t[/tex]

[tex]2A(0) = A(0)(1.1)^t[/tex]

[tex](1.1)^t = 2[/tex]

[tex]\log{(1.1)^t} = \log{2}[/tex]

[tex]t\log{1.1} = \log{2}[/tex]

[tex]t = \frac{\log{2}}{\log{1.1}}[/tex]

[tex]t = 7.3[/tex]

It will be 7.3 years before the value is doubled.

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If y varies directly with x and y = 6 when x = 2, what is the constant of variation, k? a. 12 c. 3 b. 2 d. 4 Please select the best answer from the choices provided A B C D

Answers

i believe it's A i hope this helped :)

solve pls brainliest

Answers

Answer:

Step-by-step explanation:

3.92,

Consider the following functions. f1(x) = x, f2(x) = x2, f3(x) = 2x − 4x2 g(x) = c1f1(x) + c2f2(x) + c3f3(x) Solve for c1, c2, and c3 so that g(x) = 0 on the interval (−[infinity], [infinity]). If a nontrivial solution exists, state it. (If only the trivial solution exists, enter the trivial solution {0, 0, 0}.) {c1, c2, c3} = $$ Correct: Your answer is correct. Determine whether f1, f2, f3 are linearly independent on the interval (−[infinity], [infinity]).

Answers

9514 1404 393

Answer:

(c1, c2, c3) = (-2t, 4t, t) . . . . for any value of tNOT linearly independent

Step-by-step explanation:

We want ...

  c1·f1(x) +c2·f2(x) +c3·f3(x) = g(x) ≡ 0

Substituting for the fn function values, we have ...

  c1·x +c2·x² +c3·(2x -4x²) ≡ 0

This resolves to two equations:

  x(c1 +2c3) = 0

  x²(c2 -4c3) = 0

These have an infinite set of solutions:

  c1 = -2c3

  c2 = 4c3

Then for any parameter t, including the "trivial" t=0, ...

  (c1, c2, c3) = (-2t, 4t, t)

__

f1, f2, f3 are NOT linearly independent. (If they were, there would be only one solution making g(x) ≡ 0.)

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