Please help.
Is algebra.

4. b)

5. b)

Step-by-step explanation:

4.

First, one must rewrite the exponential equation as a multiplication problem,

Now distribute, multiply every term in one of the parenthesis by every term in the other parenthesis,

Now simplify the given expression,

Combine like terms,

5.

To solve this problem, one should follow the same series of steps as they did to solve the last expression. First, rewrite the exponential expression as a multiplication problem.

Now distribute, multiply every term in one of the parenthesis by every term in the other parenthesis,

Simplify the expression,

Finally, combine like terms,

given : the shape of his satellite can be modeled by   where x and y are modeled in inches.

now,the given equation   is a equation of parabola.

here, coefficient of x is positive, hence the parabola opens rightwards.

on comparing this equation with standard equation , we get

in standard equation, coordinates of focus=(0,m)

thus for given equation coordinates of focus=(0,1.5)

step-by-step explanation: