1x²-4x-21=0 solve for x

What are some ratios equivalent to 15:18?

A taste tester has to rank three varieties of yogurt, A, B, and C, according to preference. Determine the sample space for the experiment.

What are the solutions to the equation 3 (x-4 (x + 5) = 0 x = 4 or x = 5 x = 3, x=4, or x=-5 x=3. x=4. orx=5 x = 4 or x=-5

What is the value of 9 - [42 - (3 + 2) ].

A teacher asked his students to vote for an animal to be their class pet. 5/18 of the students voted for a rabbit, 1/6 voted for a snake, and 5/9 voted for a hamster. Which statement is true? More students voted for a hamster than a snake.

Contrast the way boys and girls are treated in Pakistan, beginning at birth. Malala's father places her name on the family tree. It is the first female name on the family tree in 300 years. Explain the symbolism of this bold act by her father.

A. submarine is at the surface of the ocean preparing to dive. it submerges and dives to - 972 feet. then. it has ascends 308 feet a to avoid hitting an undersea cliff.

What is the value of x when the Richter scale rating is 5.9 round your answer to the nearest hundredth

Scientific notation for 60720000000000

Bryan has a balance of $320 in his checking account. He spends $15 each week for the next eight weeks.