Answer:
3
Step-by-step explanation:
(5x -2y) / y
Let x = -4 and y = -4
(5*-4 - 2*-4) / -4
(-20 +8) / -4
-12/ -4
3
Answer: 18 ft
Step-by-step explanation:
Given
Scale is 1inch:9 feet
1 feet= 12 inch
The dividing board is 2 inches long
Suppose the actual length of the diving board is x

Answer:
answer is number 3 you can check on a calculator
Step-by-step explanation:
A=h*b/2
180 =(b-2)*b/2
360 = b^2-2b
b^2 -2b -360 =0
D = 4+1440 = 1444
b_1,2 = (2+/-sqrt1444)/2 = -18 and 20
base length equal 20 in
height equal 18 in
hope helped