7x²=-21

is this true?

What 2 numbers add up to 1 and multiply to - 12

Muiltply (1.2 x 10^28) x (3 x 10 negative ^19). Expres the answer in scientific notation. A. 3.6 X 10^9 B. 3.6 X 10^9 C. 36 X 10^10 D. 36 X 10^10

If you flip a three fair coins, what's the probability that you'll get all three heads?

Susan is buying three different colors of tiles for her kitchen floor. She is buying 25 more red tiles than beige tiles, and three times as many navy-blue tiles as beige tiles.

Use the quadratic formula to find both solutions to the quadratic equation given below 2x^2-3x+1=0

A store pays two fees when a customer uses a credit card to make a purchase. These fees include • A flat fee of $0.25 and • A processing fee equal to 2.75% of the dollar amount of the purchase There is no sales tax on the purchase.

Nancy is making lemonade for her birthday party. She made 6 batches. Each batch of lemonade uses 24 fluid ounces of lemon juice and 8 pints of water.

You are driving on a highway divided by two solid yellow lines. you know that:

Factor the polynomial completely: 16t*2-24t+9

If a ∥ b and e ∥ f, what is the value of y? 87 88 91 92