Answer:
x=3
Step-by-step explanation:
x²+21x-72=0
(x-3)(x+24)=0
x=3 or x=-24(rejected)
∴x=3
Answer:
Its A= B * H
Step-by-step explanation:
Which means Area = (Your base times your height)
Answer:
10 and 200
Step-by-step explanation:
the two numbers are x and 18x + 20
x + (18x + 20) = 210
19x + 20 = 210
19x = 190
x = 10
Now substitute x = 10 into 18x + 20 to get the second number.
18(10) + 20
180 + 20 = 200
Answer:
105%
Step-by-step explanation:
If I am not wrong,the slope of the hillside should be increasing constantly.