A numerical expression contains numbers and operations. An algebraic expression is almost exactly the same except it also contains variables.
A triangle has side lengths of 7 centimeters, 5 centimeters, and c centimeters.
2 answers:
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Answer:
answer is 89.23.I hope this answer will help you
Answer:
Area of walkway = 16(x+4)
Step-by-step explanation:
Length of the sides of the square outdoor = x feet
Area of the square outdoor = length x length
= x * x
=
The square outdoor is surrounded by 4 feet of walkway. So that,
length of the walkway = (x + 2(4))
= (x + 8)
Area of walkway with outdoor = (x + 8)*(x + 8)
= ( + 16x + 64)
Area of walkway = Area of walkway with outdoor - Area of the square outdoor
= ( + 16x + 64) -
= 16x + 64
Area of walkway = 16(x+4)