Which pair of equations represents perpendicular lines?

a. y=2x-7, y=-0.5x-7

b. y=2x+7, y=2x-7

c. y=2x+7, y=x+7

d. y=2x+7, y=-2x-2

For f (x) = 9x and g (x) = x + 3, find the following functions. a. (f o g) (x) ; b. (g o f) (x) ; c. (f o g) (2) ; d. (g o f) (2)

Find all real fourth roots of 16

David wants to collect information about his friends and how many siblings they each have. David has eight friends. How should he collect this data? Why? Nominal,

What is the value of the digit in the tens place in the number below? What is the value of the figet in the hundreds place. Explain the relationship between these values. 666.66

Chuck lives 4/5 of a mile from the post office. He walked 2/3 of the way from home to the post office. How far did Chuck walk? If possible, write the answer in reduced form

According to data obtained from the national weather service 166 of the 400 people killed by lightning were men. assume that this trend holds for the future. what is the probability that a person killed by lightning is a woman?

The range of the function f (k) = k2 + 2k + 1 is {25, 64}. What is the function's domain? {5, 8} {-5, - 8} {3, 8} {4, 7} {4, 8}

The East-Side soccer team has a cylindrical water cooler that is half full. The diameter of the cooler is 12 in. and the height is 15 in. The team's drinking cups hold 20.14 in3. How many drinking cups can be filled from the cooler? Use 3.

Need answer fast! Using the distributive property and combining like terms 4 (x-3) + 2

What is 128 hundredths written as a decimal?