The Number System Unit Test HELP ASAP
1. Which statement is true about the relationships between the number sets?(1 point)
Responses
A. Some irrational numbers are also integers.
B. All rational numbers are also integers.
C. Not all natural numbers are real numbers.
D. Whole numbers include all natural numbers and 0.
2. Which of the following is true about −9?(1 point)
Responses
A. It is an integer but not a rational number.
B. It is both an integer and a whole number.
C. It is a whole number but not an integer.
D. It is an integer but not a whole number.
1. D. Whole numbers include all natural numbers and 0.
2. B. It is both an integer and a whole number.
3. The cost of a gallon of gas, expressed strictly as a decimal, is $3.39910.
4. A. Fractions are always rational numbers.
What is a rational number with a denominator of 7 that is between 7–√
and 8–√
. Write your answer as an improper fraction.(1 point)
wrong
A. It is an integer but not a rational number.
1. Which statement is true about the relationships between the number sets?(1 point)
Responses
A. Some irrational numbers are also integers.
B. All rational numbers are also integers.
C. Not all natural numbers are real numbers.
D. Whole numbers include all natural numbers and 0.
2. Which of the following is true about −9?(1 point)
Responses
A. It is an integer but not a rational number.
B. It is both an integer and a whole number.
C. It is a whole number but not an integer.
D. It is an integer but not a whole number.
3. 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)
4. Which set of numbers is always rational?(1 point)
Responses
A. fractions
B. positive numbers
C. decimals
D. integers
Sorry. For number 3 I meant:
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)
If the gas is advertised at a rate of $3.39 9/10 per gallon, it means the cost is $3.39 + 9/10.
To write it as a decimal, we can convert the fraction 9/10 to a decimal by dividing 9 by 10: 9 ÷ 10 = 0.9.
Therefore, the cost of a gallon of gas, written strictly as a decimal, is $3.39 + 0.9 = $3.39 + $0.9 = $4.29.
5. 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)
6. The diagonal of a square equals 2–√ times the side length. Using 1.4 for the square root of 2, what is the approximate length in feet from one corner to an opposite corner of a square park that is 700 feet on a side?(1 point)