Answer:
B and C
Step-by-step explanation:
First, we need to get the left side equal to zero. Take away 25 from each side to get .
We can use the quadratic equation of to find the solutions.
Plug them in to get .
Simplify.
or
1 and -4
x = 1 and -4
Answer:
9 centimeters
Step-by-step explanation:
Let the width be represented by l - 5, where l is the length.
Use the area formula, A = lw, and plug in l - 5 as w, and 36 as the area. Then, simplify and factor
A = lw
36 = l(l - 5)
36 = l² - 5l
0 = l² - 5l - 36
Factor:
(l - 9)(l + 4)
Set equal to zero and solve for both solutions:
(l - 9)(l + 4) = 0
l - 9 = 0
l = 9
l + 4 = 0
l = -4
The length cannot be negative, so the answer has to be 9.
The length is 9 centimeters
Answer:
f(x) = 9x+8
Step-by-step explanation:
Circumference: 21.991 feet
Area: 38.485 feet
42
1- 6+6+6+6+6+6+6
2-7+7+7+7+7+7
3- 7 TIMES 6
4- 6 TIMES 7
5-