The are is the whole area minus the inner:
(z+4)(z+4)-(z)(z)
Expand:
z^2+8z+16-z^2
Simplify:
8z+16
Answer:
8z+16 OR 8(z+2)
Yes it’s correct because 9 is x and if you substitute you do 9 x -9 which gives you y and is -81
Answer:
The graph and the number line in the attached figure
Step-by-step explanation:
we have

Solve for x
subtract 7 both sides


Divide by -2 both sides
Remember
When you multiply or divide both sides of an inequality by a negative number, you must reverse the inequality symbol
so

The solution is the interval (-8,∞)
All real numbers greater than -8
In a number line the solution is the shaded area at right of x=-8 (open circle)
The graph and the number line in the attached figure
Answer:
40 students would choose rap. Hope this helps! BTW nice job scaring people off
It is 40 because the total in the graph is 50 so you have to multiply everything by 4
Answer:
i think it is a but there are algebra caculators online
Step-by-step explanation: