All categories

2 years ago

HI.PLS HELP HAVE AN EXAM TOMORROW.

Mathematics

1 answer:

Igoryamba2 years ago

5 0

Answer:

Step-by-step explanation:

In the question their are black, white, Vertical and horizontal line in option A it is same like the question and A option is same

You might be interested in

How do I answer a b c d e

goldenfox [79]

Take a pencil put it on the paper then make sure the ink is on the paper then write

7 0

2 years ago

Find the volume in the pyramid

lilavasa [31]

Answer:

900 ft!

Step-by-step explanation:

Volume = l ∗ w ∗ h

5 0

2 years ago

What’s the answer to this?

kaheart [24]

Answer:

100

Step-by-step explanation:

5 0

3 years ago

The average estimated hours a person in the United States spent playing video games per year from 2002 to 2012 were 71, 80, 82,

ozzi

Answer:

Population variance 579

Population standard deviation 24

Step-by-step explanation:

The average estimated hours a person in the United States spent playing video games per year from 2002 to 2012 were 71, 80, 82, 78, 80, 91, 107, 121, 125, 131, and 142.

The population variance is given by:

$\sigma^2=\frac{\sum(x-\mu)^2}{n}$

$\mu=\frac{71+80+82+78+80+91+107+121+125+131+142}{11}$

$\mu=\frac{1108}{11}$

This implies that:

$\sigma^2=\frac{(71-\frac{1108}{11})^2+(80-\frac{1108}{11})^2+(82-\frac{1108}{11})^2+(78-\frac{1108}{11})^2+(80-\frac{1108}{11})^2+...+(142-\frac{1108}{11})^2}{11}$

$\sigma^2=\frac{70006}{121} =579$ to the nearest whole number

The population standard deviation is

$\sigma=\frac{\sqrt{70006} }{11}=24$ to the nearest whole number.

3 0

3 years ago

Read 2 more answers

A circle has a diameter of 15 inches find the circumference and area of this circle

mars1129 [50]

Answer:

Circumference: 47.1 inches Area: 176.71 inches ²

Step-by-step explanation:

To find the circumference of a circle, you multiply the diameter(15) to pi (3.14).

To find the area of a circle, you find the radius of the circle, which is half of the diameter (7.5), square it, which equals 56.25, multiply that by pi (3.14) and there is your area. Make sure to write your answer to area in square inches.

5 0

3 years ago