MATHEMATICS
HIGH SCHOOL

A. The x-intercept is (0, 6); the y-intercept is (–9, 0).

B.The x-intercept is (6, 0); the y-intercept is (0, –9).

C. The x-intercept is (3, 0); the y-intercept is (0, –2).

D.The x-intercept is (0, 3); the y-intercept is (–2, 0).

Answer: When x = 0, y = 18/(-2) = - 9

When y = 0, x = 18/3 = 6

=> Answer is B

When y = 0, x = 18/3 = 6

=> Answer is B

Answer: B.keep it a 100% plus i have done this already.

HIGH SCHOOL

Grace is looking at a report of her monthly cell-phone usage for the last year to determine if she needs to upgrade her plan. The list represents the approximate number of megabytes of data Grace used each month. 700, 735, 680, 890, 755, 740, 670, 785, 805, 1050, 820, 750

What is the standard deviation of the data? Round to the nearest whole number.

65

75

100

130

In order to find the standard deviation, we first have to calculate the mean (average) of the numbers. To get this we add all the numbers together and then divide by 12 since there are 12 numbers. The mean = 782. Next, we take each number and subtract the mean, taking the result and squaring it. For this we get: 6724, 2209, 10404, 11664, 729, 1764, 12544, 9, 529, 71824, 1444, 1024. Now we sum all of these up and take the average by dividing the sum by 12. Doing this we get 120868/12=10072. The last step is the take the square root of that number to get the standard deviation. The final result is 100.

The standard deviation of the given set is:

S = 130.

How to get the standard deviation?Here we have the set:

{700, 735, 680, 890, 755, 740, 670, 785, 805, 1050, 820, 750}

First, we need to get the mean of the set which is:

Then the standard deviation is:

So we conclude that the standard deviation, rounded to the next whole number, is S = 130

If you want to learn more about standard deviation:

brainly.com/question/475676

#SPJ2

MIDDLE SCHOOL

What is the volume of the cone to the nearest cubic millimeter? (Use π = 3.14) A) 46 mm3

B) 128 mm3

C) 183 mm3

D) 275 mm3

diameter = 5 mm

Height = 7 mm How do you do this problem step by step?

Answer:

= 45.791666666666 mm^3

Step-by-step explanation:

Volume of a cone is given by

V = 1/3 pi r^2 h

We know the diameter = 5

The radius is 1/2 the diameter

r = 5/2

The height is 7

Using pi = 3.14

V = 1/3 *(3.14) * (5/2)^2 *7

= 1/3 *(3.14) * 25/4 *7

= 45.791666666666

Answer:

A) .

Step-by-step explanation:

We have been given that the diameter of a cone is 5 mm and height is 7 mm. We are asked to find the volume of the given cone.

We will use volume of cone formula to solve our given problem.

, where,

V = Volume of cone,

r = Radius of cone,

h = Height of cone.

We know that radius is half the diameter, so radius of our given cone would be .

Upon rounding our answer to nearest cubic millimeter, we will get:

Therefore, the volume of the cone is approximately 46 cubic millimeters and option A is the correct choice.

MIDDLE SCHOOL

Anything that can be measured or counted

Yes you are right hahahhahahahahahahahahahahahahahahahaahahahha

HIGH SCHOOL

If the measure of angle is 38 what is the measure of its complement

90-38 =52 answer is 52