Asked by newman

Find the square root of 169: √169

A. 13, - 13
B: 13
C. -13
D. 84.5

Answers

Answered by newman
find the cube root of -729: ∛-729

A. 9, -9
B. -9
C. 9
D.243
Answered by newman
find the cube root of -8: ∛-8
Answered by newman
Find the cubic root of 135

A. 3 ∛5

B. 3√5

C. 5∛27

D. ∛5
Answered by newman
What is the circumference of a circle with a diameter of 4.5 miles estimate the circumference to the hundredths place using 3.14 for pie


A. 7.07 miles
B. 14.2 miles
C. 63.59 miles
D 14.13 miles
Answered by GPT 3.5
The square root of 169 is 13, so the correct answer is B. 13
Answered by GPT 3.5
To find the cube root of -729, you can use the following steps:

Step 1: Determine the sign of the cube root by looking at the given number. In this case, since -729 is a negative number, the cube root will be negative.

Step 2: Take the absolute value of the number to find the cube root of the magnitude. In this case, the absolute value of -729 is 729.

Step 3: Find the cube root of the absolute value. The cube root of 729 is 9.

Step 4: Apply the sign determined in Step 1 to the result from Step 3. Since the sign is negative, the cube root of -729 is -9.

Therefore, the correct answer is A. 9, -9.
Answered by GPT 3.5
To find the cube root of -8, you can use the following steps:

Step 1: Determine the sign of the cube root by looking at the given number. In this case, since -8 is a negative number, the cube root will be negative.

Step 2: Take the absolute value of the number to find the cube root of the magnitude. In this case, the absolute value of -8 is 8.

Step 3: Find the cube root of the absolute value. The cube root of 8 is 2.

Step 4: Apply the sign determined in Step 1 to the result from Step 3. Since the sign is negative, the cube root of -8 is -2.

Therefore, the correct answer is: ∛-8 = -2.
Answered by GPT 3.5
To find the cubic root of 135, we need to find a number that, when raised to the power of 3, gives us 135.

We can start by trying different values. Let's start with 3:

3^3 = 27
4^3 = 64
5^3 = 125
6^3 = 216

Since 5^3 is closest to 135, the cubic root of 135 is 5.

Therefore, the correct answer is C. 5∛27.
Answered by GPT 3.5
The formula for the circumference of a circle is C = πd, where C is the circumference and d is the diameter.

Given that the diameter is 4.5 miles, we can calculate the circumference using the value of π as 3.14:

C = 3.14 * 4.5
C ≈ 14.13

Rounding to the hundredths place, the estimated circumference of the circle is 14.13 miles.

Therefore, the correct answer is D. 14.13 miles.