Select the correct answer. Which expression is equivalent to the given expression?
-212 + 8 – 9 + 4x + 7x2 + 2
OA.
–9x2
-
12x + 11
B. 5.12 + 12x
7
OC. – 9x2 + 4x
-
7
OD.
-5x2 + 40 + 11

Aresearch company wants to test the claim that a new multivitamin to improve short term memory. state the objective of the experiment, suggest a population, determine the experimental and control groups, and describe a sample procedure.

Apatient is to take 60 mg of an antibiotic on day 1, take 45mg on days 2 and 3, take 30mg on days 4 and 5 and take 15 mg on days 6 and 7. how many total mg will the patient take?

Three cylinders have a height of 8 cm. cylinder 1 has a radius of 1 cm. cylinder 2 has a radius of 2 cm. cylinder 3 has a radius of 3 cm. find the volume of each cylinder ( ! : ”0 )