Please explain your reasoning

Answer:

D.

Step-by-step explanation:

According to the dot plot,

3 students spend 0.5 minutes brushing their teeth.

2 students spend 1.5 minutes brushing their teeth.

1 student spends 2.5 minutes brushing their teeth.

2 students spend 3.5 minutes brushing their teeth.

1 students spend 4 minutes brushing their teeth.

So, the number set will be: {0.5, 0.5, 0.5, 1.5, 1.5, 2.5, 3.5, 3.5, 4}

Median: The middle number in a set that is ordered from least to greatest.

In this example, the median is 1.5

Mean: The sum of all values divided by the number of values.

In this set there are 9 values so we’ll divide the sum by 9

In this example, the mean would be:

(0.5 + 0.5 + 0.5 + 1.5 + 1.5 + 2.5 + 3.5 + 3.5 + 4) ÷ 9

18 ÷ 9 = 2

If we compare the mean to the median we can see that the mean is greater because 2 > 1.5

Circumference = 2πr = 34.54

r = 17.27/π

A = πr^2

= π(17.27/π)^2

= 298.25/π

= 94.93
it said to round to the nears square in. so round it to 95.

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hope this helped :) sorry if it's not right I haven't done that in a while.

Answer:

2,500 centimeters!

Step-by-step explanation:

25 x 100 = 2,500 :)

Answer:

2,500 centimeters

Step-by-step explanation:

Answer:

Simplifying 4x2y + 12xy2 + 9y3 Reorder the terms: 12xy2 + 4x2y + 9y3 Factor out the ... Common Factor (GCF), 'y'. y(12xy + 4x2 + 9y2) Factor a trinomial. y((2x + 3y)(2x + 3y)) ... Use the following rules to enter expressions into the calculator. ... 2x(5). The * is also optional when multiplying parentheses, example: (x + 1)(x - 1).

Step-by-step explanation:

Answer:

i think the answer is 2x

Step-by-step explanation:

took the test

Answer:

45

Step-by-step explanation:

the middle line is at 45

Work Shown:

3*2*3 = 18 different outcomes possible in the sample space. This is the number of possible pathways in the tree diagram.

Answer:

car starts at 6 meters per sec and accelerates to 8 meters per sec in 4 sec then stops completely and reaches velocity 0 meters per sec

1 inch = 8 miles

1/2in + 1/2in = 1in

4 + 4 = 8

Answer:

Let the amount of gunpowder that contains 9 kg nitre be x kg. ∴ The amount of gunpowder containing 9 kg nitre is 12 kg.

So, about 200 kg gunpowder

Answer:

x = -16\(\frac{2}{3}\)

Step-by-step explanation:

When there are two lines that intersect at one point, the two angles that are directly opposite each other are equal. So in this case, (6x+175) = (3x + 127)

6x + 175 = 3x + 125

6x - 3x = 125 - 175

3x = -50

x = -50 ÷ 3

x = -16\(\frac{2}{3}\)

3x + 127 = 6x + 175 (Since its an opposite angle)

3x = 48

x = 16

Answer:

No, because 1.875(25)-((25)+0.5(20))=11.875, which is less than 12.

Step-by-step explanation:

c = 25       d = 20

1.875(25) - (25+0.5*20) =

46.875 - 35 =

11.875

Answer:

In this order is least to greatest:

1. 4 dishes-20% tip

2. 6 dishes -14% tip

3. 7 dishes-11% tip

4. 5 dishes-17.5% tip

Order the tip amounts from least to greatest tip will be $6.65, $6.91, $7.25, and $7.56.

The amount of any product is given as though it was a proportion of a hundred. The ratio can be expressed as a quarter of 100. The phrase % translates for one hundred percent. It is symbolized by the character '%'.

The percentage is given as,

Percentage (P) = [Final value - Initial value] / Initial value x 100

Dominic is a server at a restaurant. Each dish at the restaurant costs $8. A sales tax of 8% is charged. The total bill amount includes the sales tax of the meal.

The amount of tip for all the orders, then we have

A. 5 dishes and 17.5% tip, then the tip cost is given as,

⇒ ($8 x 5) x (1.08) x (0.175)

⇒ $7.56

B. 6 dishes and 14% tip, then the tip cost is given as,

⇒ ($8 x 6) x (1.08) x (0.14)

⇒ $7.26

C. 7 dishes and 11% tip, then the tip cost is given as,

⇒ ($8 x 7) x (1.08) x (0.11)

⇒ $6.65

D. 4 dishes and 20% tip, then the tip cost is given as,

⇒ ($8 x 4) x (1.08) x (0.20)

⇒ $6.91

Order the tip amounts from least to greatest tip will be $6.65, $6.91, $7.25, and $7.56.

More about the percentage link is given below.

https://brainly.com/question/8011401

#SPJ2

Hello there!

First things first, place the 2 on the y-axis. 2 is your "y" intercept.

Rule of thumb:  if there is a constant(single number) alone and without any variable next to it, it's going to be your y-intercept.

Next we need to count up three units from the y-intercept and over four units.

Overall:

The 2 should be plotted on the y-axis.

The new coordinate should be (5,4)

Answer:

2.75

Step-by-step explanation:

Answer:

48.1 somewhere around 36 and 57

Step-by-step explanation:

Answer:

36-57

Step-by-step explanation:

18.50 x 2.6 = 48.10, which is between those two numbers

Answer:

-0.027777

Step-by-step explanation:

put it into a calculator or you can write it down writing it down would be better and use a calculator to check

Answer:

53

Step-by-step explanation:

Answer:

The data in shelter A shows more spread than the data in shelter B

-And-

The data in shelter A range from about 17 to 28, while the data in shelter B range from about 16 to 20

For the range/span you look at where the actual box lies and for the spread use the whisker span.

Answer:

Here U Go

Step-by-step explanation:

Its exact value is defined as 299792458 meters per second (approximately 300000 km/s, or 186000 mi/s).

Hope it help

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Answer:

4x+10=26, x=2

Step-by-step explanation:

x is the expoint, and you have to multiply the expoint by the base number

4 x 4= 16

the reason why you are multiplig 4 by 4 is because the expoint told you how many times you needed to multiply the base number by

4^(2)= 16 + 10 will equal 26

Answer:

A pair of Nike Air Jordan sneakers cost $139.99.

There is a 35% off sale going on at Foot Locker.

=> Sale price = 139.99 - 139.99 x 35/100 = ~$90.99

Sales tax is 8.125% in Orange County.

=> The tax = 90.99 x 8.125/100 = ~$7.39

The total price is calculated by:

P = The sale price + The tax = 90.99 + 7.39 = ~$98.38

Hope this helps!

:)

Answer: Sale price before tax $90.99

Tax $7.39

Total after tax $98.38

Step-by-step explanation:

Sale price 139.99 x 0.65 = 90.99

Tax 90.99 x 8.125/100 = 7.39

Total 90.99 + 7.39 = 98.38

Answer:

A, C

Step-by-step explanation:

If it is inversely proportional then y = k/x

Let's try one by one for the options. (im replacing y and x in the equation and finding k to see if k is the same all throughout)

A.

6 = k/1 (k=6)

3 = k/2 (k=6)

2 = k/3 (k=6)

1.5 = k/4 (k=6)

Yes! It's the same everywhere so this is correct!

B.

7.5 = k/2 (k=15)

5 = k/3 (k=15)

3 = k/5 (k=15)

2 = k/7 (k=14)

For the last one k is not the same so nope. It is wrong.

C.

24 = k/1 (k=24)

8 = k/3 (k=24)

k = 6×4 = 24

k = 24×1 = 24

This is correct too.

D.

k = 0.1×200 = 20

k = 0.3×40 = 12

k = 0.8 × 25 = 20

We can already see that k is not the same everywhere.

Only A and C, x and y are inversely proportional for all of the values

Answer: c

Step-by-step explanation:

Answer: linear

Step-by-step explanation:

The coordinates of the point (-9, 4) after a 90 degree rotation followed by a translation 3 units right are (8,9) (for clockwise rotation) and (0,-9) (for counterclockwise rotation)

Let the point be having coordinates (x,y).

Subcase: Clockwise rotation:

Then (x,y) → (y, -x)

Subcase: Counterclockwise rotation:

Then (x,y) → (-y, x)

Subcase: Clockwise rotation:

Then (x,y) → (y, -x)

Subcase: Counterclockwise rotation:

Then (x,y) → (-y, x)

Subcase: Clockwise rotation:

Then (x,y) → (y, -x)

Subcase: Counterclockwise rotation:

Then (x,y) → (-y, x)

Subcase: Clockwise rotation:

Then (x,y) → (y, -x)

Subcase: Counterclockwise rotation:

Then (x,y) → (-y, x)

You can take that point in any of the two surrounding quadrants. Example, if the point is on positive x axis, then it can taken as of first quadrant or fourth quadrant.

No effect as we assumed rotation is being with respect to origin.

For this case, the point (-9,4) (present in second quadrant) is rotated by 90 degrees.

This rotation can be either clockwise, or counterclockwise.

Thus, for each case, we have:

Then (x,y) → (y, -x), therefore, (-9,4) → (4, 9)

Then (x,y) → (-y, x), therefore, (-9,4) → (-4, -9)

Now, when shifting to right by 4, that means, we're making no changes vertically, but old x-coordinates are increased by 4 to make them shift to right side as value of x increases as we go more and more to the right side with respect to the origin and in defaultly oriented cartesian space.

Thus, we have:

case 1: Clockwise rotation:

After translation of 4 units right:

(4, 9)  → (4+4, 9) = (8,9)

After translation of 4 units right:

(-4, -9)  → (-4+4, -9) = (0,-9)

Thus, the coordinates of the point (-9, 4) after a 90 degree rotation followed by a translation 3 units right are (8,9) (for clockwise rotation) and (0,-9) (for counterclockwise rotation)

Learn more about rotation of a point with respect to origin here:

https://brainly.com/question/18856342

Answer:

78+25+61+55+64=283

360-283=77

180+77=257

Step-by-step explanation:

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