Find the product. -1/2 y(2y 3 - 8) a. -y 4 + 4y b. y 4 + 4y c.-2y 3 + 4

Option A.

Step-by-step explanation:

To find the product you need to multiplicate by

Apply Distributive property.

Remember the Product of powers property:

Remember the multiplication of signs:

Then the product is:

Option A is the correct answer.

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,