Answer:
(x+5)²-10x²
Step-by-step explanation:
USing the completing square method
x² +25
= (x)² +2(x)(5) +(5)² -10x²
=(x+5)²-10x²
Answer:
Step-by-step explanation:
(
x + y
^)2 finds the area of the outer square by squaring its side length.
z² + 4(
1/2xy
) finds the area of the outer square by adding the area of the inner square and the four triangles.
Note that a square has 4 congruent and equal length sides.
The total perimeter is 36
Divide 36 with 4
36/4 = 9
9 inches is your answer
hope this helps
Answer:
2x + y = 15
Step-by-step explanation:
Total amount with Manuel = $15
Cost of apps = $2
Cost of song = $1
x = number of apps purchased
y = number of songs purchased
Cost of apps × number of apps purchased + Cost of song × number of songs purchased = Total amount with Manuel
2*x + 1*y = 15
2x + y = 15
The linear equation that represents the combination of apps and songs manuel can purchase is 2x + y = 15
Answer:9
Step-by-step explanation:
8 * 9 = 72
8, 16, 24, 32, 40, 48, 56, 64, 72
1, 2, 3, 4, 5, 6, 7, 8, 9