Which pair of lines is perpendicular?

a. y=2x-1 and2y=-x+3

b. y=3x+4nand3y-x=5

c. y=-4x+2 and x+4y=6

d. y=-6x-3 and 6x-y=4

Use synthetic division to solve (4x^3-3x^2+5x+6) divided by (x+6) What is the quotient?

Phillip put together 981 pieces of a puzzle. About how many pieces did he put together? Round to the nearest thousand.

There are 18 students in a music class, 6 of them are male. What is the probability of choosing a male student from the class?

The y-intercept is 2 and the line is perpendicular to the line whose equation is y = 4x - 7

Carmella, a human resources executive, emphasizes to her staff that the department should focus on serving its "customer," the company's employees. Which activity best expresses treatment of employees as customers?

How many five-letter codes can be made if no letter can be used twice? (There are 26 letters in the alphabet.)

How to prove using basic definitions, If xy=xz then y=z

Some species of hummingbirds appear to hover in mid-air by flapping their tiny wings 85 times per second. How many times do their wings flap in one minute?

The area of a square is 25 square units how many units is a diagonal of the square

If there are a number of different sounds being produced simultaneously, the resulting intensity is the sum of the individual intensities. How many decibels louder is the sound of quintuplets crying than the sound of one baby crying?