What are the center and radius of the circle defined by the equation

x2 + y2 - 6x+By+21=0?

N-2 = (10n+4) / 2 Solve for n. No multiple choice.

What is an expression that equals 1 using the numbers 6, 3, and 5 only once

What is 5.42 times 305 estimate to?

F (x) = 3x^3-x^2-5x-10

Mckenzie runs at a rate of 180 meters per minute. how far does she run in 5 minutes

The next term of the sequence is 48. (2, 4, 8, 16, 32, ...)

A motorboat left a harbor and traveled to an island at an average rate of 10 knots. The average speed on the return trip was 10 knots. If the total trip took 4.0 hours, how far is the harbor from the island?

Which polynomial is in standard form? 1+2x-8^2+6x^3 2x^2+6x^3-9x+12 6x^3+5x-3x^2+2 2x^3+4x^2-7x+5

Sonia runs 12 laps in 30 min. Latasha runs 20 laps in 45 min. Determine if the quantities in each pair of ratios are equivalent, and explain your reasoning.

A stranded soldier shoot a signal flare into the air to attract the attention of a nearby plan. The flare has an initial velocity of 1500 feet per second. Its height is defined by the quadratic function below.