X^4 - 5x^2 - 36 = 0
(x^2 - 9)(x^2 + 4) = 0
(x-3)(x+3)(x-2)(x+2) = 0
x = -3, -2, 2, 3
Answer:
I think its number 4
Step-by-step explanation:
but im not sure
Answer:
31.5 units²
Step-by-step explanation:
Area = ½*base*height
Height of the triangle on the grid = 9 units
Base = 7 units
Area = ½*9*7
Area = ½*63
Area = 63/2
Area = 31.5 units²
First of all, we need to deduce the price of a single camera:

Now, we know that he profits 36 dollars from each camera. So, we are asking: which percentage of 150 is 36? We have

This equation literally says: 36 is x-percent of 150. And we need to solve for x:
