Negative one-half(–4a – 6) + a2 for a = 8

Leon multiplied 8 by 2 when he should have raised 8 to a power of 2.  

The multiplication of two negative values in step 4 should result in a positive value.

The correct answer should be 83.

Step-by-step explanation:

I did it i was correct

Last three are correct

Step-by-step explanation:

answer: i think it is (1,-2)

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