Answer:
whats the question though?
Step-by-step explanation:
Answer:
A=2
B=12
C=5
D=13
SA=411mm
Step-by-step explanation:
SA=bh+(s1+s2+s3)H
=12×5+(12+2+13)(13)
The answer is A. 4
in this equation you use pythagoreans theorem
x^2-8^2=9^2
x^2-64=81
81-64=17
square x^2 square 17
x=4.12 rounded to 4
Answer:
28
Step-by-step explanation:
4x + 9x + 8x = 147
21x = 147
x = 147/21
x = 7
========
The shortest side will be 4x
4*7 = 28
Answer:
B) Stan made a mistake in step one.
Step-by-step explanation:
B) Stan made a mistake in step one.
When he multiplied 8(n+20), he should have gotten 8n+160, not 8n+20.