Answer:
64
Step-by-step explanation:
To complete the square
add ( half the coefficient of the b- term )² to b² + 16b
b² + 2(8)b + 8²
= b² + 16b + 64 = (b + 8)²
Answer:
80% increase
Step-by-step explanation:
45 - 25 = 20
20/25 = 0.8
0.8 X 100 = 80
What you would do is take 13 times x equals 91 13x7=91 the width is 7 ft
Answer:
Area of Rectangle = length times width
lets say length = 2x-4
width = x+5
Note: you can switch these around, width could be 2x-4 and length could be x+5, it doesnt matter.
With that being said:
length * width = area
(2x-4)(x+5)=area
Answer:
Step-by-step explanation:
3(x + 5) = 36
3x + 15 = 36
3x + 15 -15 = 36 - 15
3x = 21
3x/3 = 21/3
x = 7