Answer:
sorry this doesnt make sense but i think your mutiplying so it would be 30 because he took 10 minutes on his homework and 3 minutes per question
Step-by-step explanation:
Answer:
45 = 2x + 22
Step-by-step explanation:
Perimeter is all the sides lengths added together.
Step 1: Set up equation
7 + 7 + x + 4 + x + 4 = 45
Step 2: Combine like terms
2x + 22 = 45
D
if you move 5 down from f(x), the intercept is -2
Give the 2 numbers variables,say x and y.
then they multiply to -225.this means xy=-225
they add to 16.this means x+y=16
y=16-x
substitute y=16-x onto xy=-225 to get x(16-x)=-225
then expand to get 16x-x^2=-225
rearrange to get a quadratic: x^2-16x-225=0
x=(16+(16^2-4*-225)^0.5))/2 or
x=(16-(16^2-4*-225)^0.5))/2
