If lines are perpendicular, what do you know about the angles at which they intersect?

A. They are parallel angles.

B. They are adjacent angles.

C. They are vertical angles.

D. They are right angles.

What are the steps for x2-11=-2

What is 81 to the power of 9?

What is the equation of the line that passes through (1, 2) and is parallel to the line whose equation is 2x + y - 1 = 0?

A rectangle has length (x-3) cm and width 4 cm. The perimeter of the rectangle is 40 cm. Find the length.

Imani left the hardware store and traveled toward the lame at an average speed of 55 mph. Joe left the hardware store at the same time in the opposite direction with a speed of 65 mph.

Margo can purchase tile at a store for $0.69 per tile and rent a tile saw for $32. At another store she can borrow the tile saw for free if she buys tiles there for $1.49 per tile.

Fannie Flynn compares her checkbook register, cancelled checks, and bank statement which shows a balance of $300.42. She finds two outstanding checks for $98.25 and $59.35. There is also an outstanding deposit of $19.95.

The dance teacher bought a roll of ribbon that is 201.5 yards. She needs 15.5 yards of ribbon for each dancer. How many 15.5 yards pieces of ribbon can they cut from each roll on ribbon

A woman put $580 into a saving account for one year. the rate of interest on the account was 6 half %. how much was the interest for the year in dollars and cents?

Simplify and Solve this equation q: 3q+5+2q-5=65