cyrus factored the expression 15x2y3+10x4y+5xy as 5xy(3xy2+2x3). did cyrus factor it correctly?
a. no because 5xy is not the common factor
b. yes because the last term is cancelled out
c. yes there exist a common factor on all terms
d. no because the last term when factored is 1 and should not be omitted
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Answered by
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Step-by-step explanation:
=π(R+r)ℓ=[722∗(28+7)∗49.65]cm2
=[22×5×49.65]cm2
5461.5cm2
total surface area of frustum of the cone
π(R+r)ℓ+πR2+πr2
=[5461.5+722×(28)2+722×(7)2]cm2
=[5261.5+722×(28)2+(7)2]cm2
=[5461.5+22×1+9]cm2
=8079.5cm2
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Answer:
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