Select all of the expressions that are equivalent to 4√5

2√20

6^1/2 - 5^1/2

3 x 5^1/2 + 5^1/2

4 x 5^1/2

2√10

3 x 5^1/2

Slope of (-4, 10) and (8,-2)

Assume the defect length of corrosion defect in a pressurized steel pipe is normally distributed with mean value 30 mm and standard deviation 7.8 mm. a. What is the probability that defect length is at most 20 mm? Less than 20 mm? b.

What is the y-intercept of the line described by the equation below? y = 4x-9

I am an odd number I am less than 100 The sum of my digits are 12 I am a multiple of 15 What number am I?

What is the inverse of f (x) = 2x-2

What is the answer to 1/8 (8x+15) = 24

A equation of a line that passes throgh (2,-1) and has a slope of - 3

Adding - 34 is the same as subtracting what number?

The smith family is shopping for a new car and they are basing decision on color and style. Explain how many color choices and how many style choices they might have if there are 8 possible outcomes. Justify your answer

Ann received a $70 gift card for a coffee store. She used it in buying some coffee that cost $8.18 per pound. After buying the coffee, she had $29.10 left on her card. How many pounds of coffee did she buy?