Which of the following is a rational zero of the function p(x)= 4x^4 + 8x^3 -7x^2 -21x-9 a. -3/2 b. -1 c. -3/4 and !

Applying the rational  roots theorem because of the -9 and 4,  -3/2 looks like a good bet  because -3 is a factor of -9 and 2 is a factor of 4.

Plugging x = -3/2 into the function we have

4(-3/2)^4 + 8(-3/2)^3 - 7(-3/2)^2 - 21(-1.5) - 9 = 0

so -3/2  is a zero

x = 1 and x =  -3/4  are not zeroes.

-3/2

Step-by-step explanation:

Just took test on odyssey

answer: the answer is (b) amie should have multiplied

step-by-step explanation: given a sphere and a cylinder with same radius and height.

let, 'r' be the radius of the cylinder and sphere and 'h' be the height of the cylinder. according to the question,

r = h.

now, the volume of the sphere will be

and the volume of the cylinder will be

therefore, we have

thus, ammie should have multiplied the volume of the sphere