MATHEMATICS MIDDLE SCHOOL

Hi, I need some help with this question about the circumference of a circle. Help would be greatly appreciated :)

Answers

Answer 1

Answer:

Answer:

C = 18.84 ft

Step-by-step explanation:

C = 2 * pi *r

The radius is 3 ft

C = 2 * 3.14 * 3

C = 18.84

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In 1995 Mexico's population was 92,202,000. That same year Mexico's land area was 756,066 square miles and the U.S.A.'s land area was 3,536,278 square miles. If the population of Mexico was spread evenly over the land area of the United States, about how many Mexican people would there have been in each square mile?

Answers

In 1995 Mexico's population was 92,202,000. That same year Mexico's land area was 756,066 square miles and the U.S.A.'s land area was 3,536,278 square miles.

18+(-12)+5 add integers

Answers

The answer to this question is 11.

11 because 18-12=6 and 6+5=11

What fraction of 1 gallon is 5 cups

Answers

5/16.
4 quarts to a gallon. 4 cups to a quart. each cup is 1/16 of a gallon. therefor 5/16

h(x)=1/2(x+3)^2 + 2 how is the graph of h(x) translated from the parent graph of a quadratic function, f(x)=x^2

Answers

The graph is translated 3 to the left and 2 up. When adding a number to x inside the parentheses the graph is moved to the left. When adding to x outside the parentheses the graph will move up. The graph is also strerched by 1/2.

How many centimeters are there in 3.5 inches?
1 inch = 2.54 cm

Answers

there are 8.89 centimeters in 3.5 inches

3.5 inches* (2.54 cm/ 1 inch)= 8.89 cm.
(Note that the unit cancels out so you get the answer)

The answer is 8.89 cm~

Olivia is 4 feet 10 inches tall. She compared her height with her younger sister, Susan, and found that Susan is 15 inches shorter than she is.What is Olivia's height, in inches?

______________

What is Susan's height, in centimeters?

1 inch=2.54 centimeters

Answers

A foot (or feet) is 12 inches.This means Olivia is four lots of 12 inches tall plus another 10 inches.Four lots of 12 is 48(4x12=48).48+10=58.
However Susan is 15 inches shorter than Olivia so Susan is basically Olivia's height minus 15 inches. Olivia's height, as we know, is 58 inches.
58 inches minus 15 is 43, therefore Susan is 43 inches tall. This means Susan's height equals 43 lots of 1 inch. Because 1 inch equals 2.54 centimeters, Susan's height equals 43 lots of 2.54 centimeters. To work this out without a calculator you could get rid of the decimal place and do 43x254=10922. Then, because the number that had the decimal point in had 2 digits after it(2 numbers) you add the decimal place back in 2 places from the right of your answer. In this case, it gives you 109.22. Therefore:
~Olivia's height: 58 inches
~Susan's height: 109.22 centimeters

I hope that helps you and I understand that it's a really long answer but I wasn't sure which bit you couldn't understand. :)

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