Respuesta :
real question:
Mr. Wilson is building a swimming pool in his backyard. The width of the pool is twice the depth and the length of the pool is 3 feet
longer than the width.
Which of the following statements is true?
The monomial 3d represents the length of the swimming pool.
The trinomial 2d3 +3d2+1 represents the volume of the swimming pool.
The binomial 6d3 + 4d2 represents the volume of the swimming pool.
The binomial 2d + 3 represents the length of the swimming pool.
Answer:
The binomial 2d + 3 represents the length of the swimming pool
Step-by-step explanation:
Let
l ----> the length of the swimming pool
w ---> the with of the swimming pool
d ---> the depth of the swimming pool
we know that
w=2d -----> equation A
l=w+3 ----> equation B
substitute equation A in equation B
l=2d+3 -----> equation C
The volume of the swimming pool is equal to
v=lwd
Substitute equation A and equation C in the formula of Volume
v+(2d+3)(2d)d
v=4d^3+6d^2
therefore
The binomial 2d + 3 represents the length of the swimming pool (equation C)
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