Which statement is true about the relationships between the number sets?(1 point)
Not all natural numbers are real numbers.
Whole numbers include all natural numbers and 0.
Some irrational numbers are also integers.
All rational numbers are also integers.
Whole numbers include all natural numbers and 0.
Which of the following is true about −9?(1 point)
It is both an integer and a whole number.
It is a whole number but not an integer.
It is an integer but not a rational number.
It is an integer but not a whole number.
It is both an integer and a whole number.
A sign in a gas station advertises gas at the rate of $3.39 9/10 per gallon. How many dollars does a gallon cost, writing the price strictly as a decimal?(1 point)
To convert the price to a decimal, we can round up the fraction 9/10 to the nearest whole number. Then, we add it to the whole number part of the price.
$3.39 + 1 = $4.39
Thus, a gallon costs $4.39.
Which set of numbers is always rational?(1 point)
The set of integers is always rational.
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?(1 point)
Given that the height of an equilateral triangle is equal to 3√/2 times the side length, and using 7/4 as the approximate value for the square root of 3, we can calculate the height as follows:
height = (3√/2) * side length
height = (3 * (7/4))/2 * 8
To calculate the height, we can simplify the expression:
height = (21/4)*(8/2)
height = (21/4)*4
height = 21
Therefore, the approximate height in meters of an equilateral triangle with a side length of 8 meters is 21.