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Choose the inequality that represents the following graph.

Choose 1 answer:
A. x<2x

B. x ≤ 2x

C. x > 2x

D. x ≥ 2

According to the model, the recommended amount of sleep for a 25-year-old person is equal to 6.75 hours of sleep.

In Mathematics and Statistics, a line of best fit is also referred to as a trend line and it can be defined as a statistical or analytical tool that is typically used by researchers and mathematicians in conjunction with a scatter plot, in order to determine whether or not there is any form of association and correlation between a data set.

Based on the scatter plot, we can logically deduce that a linear equation which represents the line of best fit include the following:

y = -0.25x + 13

For a 25 years old person, the recommended hours of sleep can be calculated as follows;

y = -0.25x + 13

y = -0.25(25) + 13

y = -6.25 + 13

y = 6.75 hours of sleep.

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Answer:formula 3x + 4y = 10 can be solved for y as y = (10 - 3x) / 4.

Step-by-step explanation:

To solve for y, we need to isolate y on one side of the equation.

3x + 4y = 10

Subtract 3x from both sides:

4y = 10 - 3x

Divide both sides by 4:

y = (10 - 3x) / 4

4 units tο the right and 6 units dοwn, withοut changing its size οr οrientatiοn describes the mοvement οf a figure that is translated accοrding tο the rule belοw.

In geοmetry, a mοtiοn is an isοmetry οf a metric space. Fοr instance, a plane equipped with the Euclidean distance metric is a metric space in which a mapping assοciating cοngruent figures is a mοtiοn.

The rule [tex]$\rm (x,y) \to (x+4,y-6)$[/tex] defines a translatiοn οf a figure in the plane. Specifically, each pοint in the οriginal figure is mοved 4 units tο the right and 6 units dοwn tο οbtain the cοrrespοnding pοint in the translated figure.

Fοr example, cοnsider the pοint (2, 3) in the οriginal figure. Applying the translatiοn rule, we οbtain (2+4 ,3-6) = (6,-3) as the cοrrespοnding pοint in the translated figure.

Similarly, any οther pοint (6, 4) in the οriginal figure is translated tο the pοint (6+4 ,4-6) = (10,-2)  in the translated figure.

Geοmetrically, we can think οf the translatiοn as sliding the entire figure 4 units tο the right and 6 units dοwn, withοut changing its size οr οrientatiοn.

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Answer:

Option B

Step-by-step explanation:

To find the standard deviation, we need to follow these steps:

1) Find the mean of the data set.

2) Calculate the difference between each data point and the mean.

3) Square each difference.

4) Find the average of the squared differences.

5) Take the square root of the average to get the standard deviation.

First, we find the mean of the data set:

Mean = (7.2 + 8.9 + 2.7 + 11.6 + 5.8 + 10.2) / 6 = 46.4 / 6 = 7.73

Next, we calculate the difference between each data point and the mean:

| 7.2 - 7.73 | = 0.53

| 8.9 - 7.73 | = 1.17

| 2.7 - 7.73 | = 5.03

| 11.6 - 7.73 | = 3.87

| 5.8 - 7.73 | = 1.93

| 10.2 - 7.73 | = 2.47

Then, we square each difference:

0.53^2 = 0.2809

1.17^2 = 1.3689

5.03^2 = 25.3009

3.87^2 = 14.9569

1.93^2 = 3.7249

2.47^2 = 6.1009

Next, we find the average of the squared differences:

(0.2809 + 1.3689 + 25.3009 + 14.9569 + 3.7249 + 6.1009) / 6 = 8.62

Finally, we take the square root of the average to get the standard deviation:

sqrt(8.62) = 2.93

Therefore, the standard deviation of the data set is 2.93, which is option B.

Answer:

16

Step-by-step explanation:

Because this is a right triangle the two angles besides the right angle add up to 90°

33 + 3x + 9 = 90

Combine like terms

42 + 3x = 90

Isolate the x ( subtract 42 from both sides)

3x = 48

Divide both sides by 3

x = 16

Answer:

X= 16

Step-by-step explanation:

right angle = 90°

And we have 33° already

90 + 33 = 123

Triangle is 180

180 - 123 = 57

Write in an equation

57 = 3x + 9

57- 9 = 48

48= 3x

48/ 3 = 16

X= 16

The circumference of a circle with a diameter of 21 cm is 65. 94cm

The equation for the formula that is used to determine the circumference of a circle is expressed as;

C = 2πr

Such that the parameters are enumerated as;

Also, the formula for calculating the radius of a circle is expressed as;

Radius = Diameter/2

Substitute the value

Radius = 21/2 = 10. 5cm

Substitute the value for circumference

Circumference = 2 × 3.14 × 10. 5

Find the value

Circumference = 65. 94cm

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The total cost of this balloon mortgage is $288,513.13.

What is a mortgage?

When you and a lender enter into a mortgage, the lender is granted the power to seize your property if you are unable to pay back the loan amount plus interest. To purchase a property or borrow money against the value of a home you currently own, you can use a mortgage loan.

Here, we have

Given: $195,000 25/7 balloon 7.2% annual rate Monthly Payment: $1,403.20 Balloon Payment: $170,644.33

We have to find the total cost of this balloon mortgage.

Monthly payment = 1403.20 which happens for 7 years (7*12 Months)

The total monthly payment for 7 years = 1403.20*7*12 = 117,868.80

Ballon payment =170,644.33 (Given)

Total cost of the balloon payment = 117,868.80 + 170,644.33 = 288,513.13

Hence, the total cost of this balloon mortgage is $288,513.13.

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The interval notation for the solution set is (-∞, -4] and the number line is on the image at the end.

Here we want to find the solution set of the inequality below:

x ≤ -4

First let's do the interval notation. This will be the set that contains all the numbers from negative infinity to -4 (with -4 included, so  we need to have a closed set at that end)

This is written as:

(-∞, -4]

The use of the symbols [ ] means that the element belongs to the set.

Now to the number line, we will have a closed circle at x = -4 (because it is a solution) and a line that goes to the left of it. You can see an example in the graph at the end.

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36 cm³ of pure alcohol is added to 10 cm of an 8% alcohol solution to strengthen it to an 80% solution.

What is the solution?

A particular kind of homogenous mixture made up of two or more substances is known as a solution. A solute is a substance that has been dissolved in a solvent, which is the other substance in the mixture.

Here, we have

Given: a pharmacist adds 10cm^(3) of an 8% alcohol solution to strengthen it to an 80% solution.

Let x represent the volume of pure alcohol (100%) in cm³ needed to be added.

x × 100% + 10 cm³ × 8% = 80% × (x + 10 cm³)

x × 1 + 10 × 0.08 = 0.8 × (x + 10)

x + 0.8 = 0.8x + 8

0.2x = 7.2

x = 36 cm³

Hence, 36 cm³ of pure alcohol is added to 10 cm of an 8% alcohol solution to strengthen it to an 80% solution.

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Answer:

Step-by-step explanation:

=√((x2 – x1)² + (y2 – y1)²)

=√((8 – 1)² + (9 – 2)²)

=√((7)² + (7)²)

=√(49 + 49)
=√(2 • 49)

=7√2

Divide the line segment into 7 parts equally:

=(7√2)/7

=1√2

Multiply to 6 and 1 to get 6:1 ratio:

= 6(1√2)

= 6√2

Final Answer: 6√2 and √2.

The employee's net pay after taxes if he works 52.5 hours in one week is $616.875.

The net pay is the difference between the gross periodic pay or earnings less statutory deductions, including income taxes.

Normal hourly rate = $15

Normal weekly hours = 40 hours

Overtime rate = 1¹/₂ of $15 = $22.50

Income tax rate = 30%

Total hours worked in one week = 52.5 hours

Overtime hours = 12.5 (52.5 - 40)

Normal weekly gross pay = $600 ($15 x 40)

Overtime pay = $281.25 ($22.50 x 12.5)

Total pay for the week = $881.25

Income tax = $264.375 ($881.25 x 30%)

Net pay = $616.875 ($881.25 - $264.375)

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Let's use the conditional probability formula to calculate the probability that Luis makes both free throws:

P(both free throws) = P(makes first) * P(makes second | makes first)

We are given that:

P(makes first) = 0.75

P(makes second | makes first) = 0.85

So we can substitute these values in the formula:

P(both free throws) = 0.75 * 0.85

P(both free throws) = 0.6375

Therefore, the probability that Luis makes both free throws is 0.6375, or 0.638 rounded to the nearest thousandth.

Answer:

90

Step-by-step explanation:

There are 30 days in November, so 3 x 30 = 90.

Answer:

Step-by-step explanation:

To find the coterminal angle with 887, we can add or subtract any multiple of 360°.

Adding a multiple of 360°:

887 + n(360)

where n is an integer.

Subtracting a multiple of 360°:

887 - n(360)

where n is an integer.

To find the angle between -0° and -36°, we need to subtract a multiple of 360° from 887 to get an angle between -0° and -36°.

887 - n(360) = -x

where x is the angle between -0° and -36°.

We can solve for x:

x = 887 - n(360)

We want x to be negative, so we need to choose a value of n such that 887 - n(360) is less than 0.

If we set n = 3, then:

x = 887 - 3(360) = 47

So, the angle between -0° and -36° that is coterminal with 887 is 47 degrees.

Answer:

Step-by-step explanation:

La ecuación de una línea recta que pasa a través de un punto \ ((x_1,y_1)\) y tiene un gradiente \ (m\) se puede escribir en la forma punto-pendiente1:

\ [y - y_1 = m (x - x_1)\]

En tu caso, el punto es \ ((2,0)\) y el gradiente es \ (-3\). Sustituyendo estos valores en la fórmula anterior, obtenemos:

\ [y - 0 = -3 (x - 2)\]

Simplificando esta ecuación, obtenemos:

\ [y = -3x + 6\]

Esta es la ecuación de la línea recta que buscas.

Espero que te haya sido útil. ¿Tienes alguna otra pregunta?

Espero que te haya sido útil.

Thus, estimated margin of error is 0.4.  Sample mean height of seedlings is 4.5 cm.

The degree of error in survey findings from random sampling is known as the margin of error in statistics. A wider margin of error for statistics denotes a reduced possibility of relying on a survey's or poll's findings, meaning that there will be less confidence in the results' ability to accurately reflect a community.

In order to admit that sample findings will vary between sample to sample and may differ from the actual population situation, you must add a margin of error to your statistical results.

Given data:

confidence interval of (4.1,4.9)

upper limit k = 4.9.

Lower limit r = 4.1.

So,

margin of error E = (k - r)/2

E = (4.9 - 4.1)/2

E = 0.4

Thus, estimated margin of error is 0.4.

Sample mean height of seedlings:

x = k - E

x = 4.9 - 0.4

x = 4.5

Thus, Sample mean height of seedlings is 4.5 cm.

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Answer:

Step-by-step explanation:

first.. simplify

5.9x^2 + 8.5x +4.5x^2+5x (add the others together in a different problem)

then subtract the two numbers (i hope this helps!)

The true statements are, The probability of drawing a 2 is 0 and  The probability of drawing a number 5 or greater is greater than the probability of drawing a number less than 5.

Prοbability is a way οf calculating hοw likely sοmething is tο happen. It is difficult tο prοvide a cοmplete predictiοn fοr many events. Using it, we can οnly fοrecast the prοbability, οr likelihοοd, οf an event οccurring. The prοbability might be between 0 and 1, where 0 denοtes an impοssibility and 1 denοtes a certainty.

Here the given , Total number of outcomes = N {3,4,4,5,5,6,6,6} = 8

Now probability = No of Favorable outcome/ Total outcome.

Here Option A , Number of 2 = 0.

Then probability of getting 2 = 0/8 = 0.

Option B, Number of 7 = 0

Then probability of getting 7 =0/8 = 0

Option C , Number of 5's = 2

probability of getting 5 = 2/8 = 1/4

Number of less than 5 = 3

Probability of getting less than 5 = 3/8

Here 1/4 > 3/8 . Then The probability of drawing a number 5 or greater is greater than the probability of drawing a number less than 5.

Option D, Here least number in given is 3 not 5.

Hence the true statements are, The probability of drawing a 2 is 0 and The probability of drawing a number 5 or greater is greater than the probability of drawing a number less than 5.

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the area of one of the isosceles triangles formed by cutting the square by a diagonal is 25√(7) square cm.

Find the area of triangle?

To find the area of one of the isosceles triangles formed by cutting the square by a diagonal, we can use the fact that the area of a triangle is given by the formula:

A = (1/2)bh

where A is the area of the triangle, b is the base, and h is the height.

In this case, the base of the isosceles triangle is one of the sides of the original square, which is 10 cm. The height can be found by using the Pythagorean theorem, since the diagonal of the square and the height of the isosceles triangle form a right triangle:

d² = h² + (10/2)²

where d is the length of the diagonal, which can be found using the Pythagorean theorem:

d² = 10² + 10² = 200

d = √(200) = 10√(2)

Substituting this value for d in the first equation, we get:

(10√(2))² = h²+ (10/2)²

200 = h² + 25

h²= 175

h = √(175) = 5√(7)

Now we can use the formula for the area of a triangle to find the area of one of the isosceles triangles:

A = (1/2)(10)(5√(7))

A = 25√(7) square cm

Therefore, the area of one of the isosceles triangles formed by cutting the square by a diagonal is 25√(7) square cm.

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The male with an associate degree has a yearly median income of $36,432.

The median income means an income amount that divides a population into two equal groups, half having an income above that amount, and half having an income below that amount

The weekly income of a male with an associate degree is $759. We have 4 weeks in a month, and 12 months in a year. So, the yearly median income is:

= 4 *12 * $759

= $36,432

Therefore, the male with an associate degree has a yearly median income of $36,432.

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the values of x where f(x) = 1 for the function y = x^2 - 2x + 1 are x = 0 and x = 2.

general steps to find all values of x where f(x) = 1 for a given function y = f(x):

1. Set f(x) equal to 1: f(x) = 1.
2. Solve the equation for x. This may involve algebraic manipulation or using techniques such as factoring, completing the square, or using the quadratic formula, depending on the form of the equation.
3. If the equation has multiple solutions, list them all as the values of x where f(x) = 1. If the equation has no solutions, then there are no values of x for which f(x) = 1.

For example, if the function is y = x^2 - 2x + 1, then setting f(x) = 1 gives:

x^2 - 2x + 1 = 1

Simplifying this equation by subtracting 1 from both sides, we get:

x^2 - 2x = 0

Factoring out x, we get:

x(x - 2) = 0

This equation is satisfied when either x = 0 or x = 2. Therefore, the values of x where f(x) = 1 for the function y = x^2 - 2x + 1 are x = 0 and x = 2.

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Answer:

x=7 and 1/6

Step-by-step explanation:

LOOK AT THE PICTURE! Because the transversal (line that goes through A and B) is straight, then:

(Angle C)+(20x+10)=180 deg

Angle C=(180 deg)-20x+10 deg

Angle C=170-20x

We know that 4x+2 is equal to angle C (marked in the picture) because of alternate interior angles are congruent theorem. So:

170-20x=4x+2

172=24x

x=7 and 1/6

The least number of plums that can be shared equally among 6, 9, or 12 children is the smallest common multiple (LCM) of 6, 9, and 12.

Prime factorizing each number, we get:

6 = 2 * 3 9 = 3 * 3 12 = 2 * 2 * 3

Taking the highest power of each prime factor, the LCM is:

LCM = 2 * 2 * 3 * 3 = 36

Therefore, the least number of plums that can be shared equally among 6, 9, and 12 children is 36, which is option (B).

Answer:

Step-by-step explanation: answer is choice B or 36

That would be finding the Lcm of least common multiple of the three numbers. Which is 36

hope it helps!

if we take 200(origin amount) as the 100%, what's 92 off of it in percentage?

[tex]\begin{array}{ccll} Amount&\%\\ \cline{1-2} 200 & 100\\ 92& x \end{array} \implies \cfrac{200}{92}~~=~~\cfrac{100}{x} \\\\\\ \cfrac{ 50 }{ 23 } ~~=~~ \cfrac{ 100 }{ x }\implies 50x=2300\implies x=\cfrac{2300}{50}\implies x=46[/tex]

22. 3.9 feet tall at the highest point.

23. 12.6 inches long.

24. 76.6 feet tall.

25. The height of the formation is 50.3m.

Trigonometry studies the relationships between sides and angles of triangles.

22. To calculate the height of the ramp, David can use the concept of trigonometry. The formula for finding the height of a right triangle is h = opposite side/sin(angle).

The opposite side is 3.5 feet and the angle is 20°.

Therefore, h = 3.5/sin(20°) = 3.9 feet. The ramp needs to be 3.9 feet tall at the highest point, rounded to the nearest tenth.

23. To calculate the length of the springboard, Eric can use the concept of trigonometry.

The opposite side is 6 inches and the angle is 14.5°. Therefore, a = 6/tan(14.5°) = 12.6 inches. The springboard is 12.6 inches long.

24. To calculate the height of the roller coaster, the concept of trigonometry can be used.

The opposite side is 98 feet and the angle is 55°.

Therefore, h = 98/sin(55°) = 76.6 feet. The roller coaster is 76.6 feet tall when it reaches the top of the first hill.

25. To calculate the height of the formation, Diego can use the concept of trigonometry.

The opposite side is 43m and the angle is 36°. Therefore, h = 43/sin(36°) = 50.3m.

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Answer: $5.00

Step-by-step explanation:

The cost of a 6-mile ride is made up of three components: a base fare of $1.25, a distance charge of 50 cents per mile, and a waiting charge of 30 cents per minute for the time spent eating at stoplights.

The distance charge for a 6-mile ride is:

6 miles x $0.50/mile = $3.00

The waiting charge for 2.5 minutes at 30 cents per minute is:

2.5 minutes x $0.30/minute = $0.75

So the total cost of the ride is:

$1.25 (base fare) + $3.00 (distance charge) + $0.75 (waiting charge) = $5.00

Therefore, a 6-mile taxi ride with 2.5 minutes of waiting time at stoplights costs $5.00.

The regular price of the TV is $445.81, and the sale price is $393.36.

To find the percent decrease in the price, we can use the formula:

percent decrease = (original price - sale price) / original price x 100%

Substituting the given values, we get:

percent decrease = ($445.81 - $393.36) / $445.81 x 100%

percent decrease = $52.45 / $445.81 x 100%

percent decrease = 0.1175 x 100%

percent decrease = 11.75%

Therefore, the percent decrease in the price of the TV is 11.75%.

Step-by-step explanation:

even number=6

A=12

:.6/12

=1/2