Which of the following is true about −9 ?(1 point)

Question

It is an integer but not a rational number.

It is both an integer and a whole number.

It is an integer but not a whole number.

It is a whole number but not an integer.

Answer 1

The correct statement is: It is both an integer and a whole number.

Answer 2

A sign in a gas station advertises gas at the rate of $3.39910 per gallon. How many dollars does a gallon cost, writing the price strictly as a decimal? (1 point)

3.399

.339910

3.0339

0.3399

Answer 3

The correct price written strictly as a decimal is: 3.399

Answer 4

Which set of numbers is always rational?(1 point)

decimals

integers

positive numbers

negative numbers

Answer 5

The correct answer is integers. Integers are always rational numbers because they can be expressed as a whole number divided by 1.

Answer 6

The height of an equilateral triangle equals 3√2 times the side length. Using 74 for the square root of 3, what is the approximate height in meters of an equilateral triangle with a side length of 8 meters?

Answer 7

The height of an equilateral triangle can be calculated by multiplying the square root of 3 (√3) by the side length. Given that √3 is approximately equal to 1.732 and the side length is 8 meters, we can follow the calculation below:

Height = 1.732 * 8 = 13.856

Therefore, the approximate height of the equilateral triangle is 13.856 meters.

Answer 8

The height of an equilateral triangle equals 3√/2 times the side length. Using 7/4 for the square root of 3, what is the approximate height in meters of an equilateral triangle with a side length of 8 meters?

Answer 9

First, we need to substitute the value of √3 with 7/4 in the formula for the height of an equilateral triangle:

Height = (3√3/2) * side length

Height = (3 * 7/4 / 2) * 8

Height = (21/4 * 8) / 2

Height = (168/4) / 2

Height = 42 / 2

Height = 21

Therefore, the approximate height of the equilateral triangle is 21 meters.