What is d if p equals 15 in d=-3p^2+168p-315

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asked May 25, 2017 43.9k views

1 vote

What is d if p equals 15 in d=-3p^2+168p-315

Mathematics
high-school

Serenesat asked

by Serenesat

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2 Answers

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so first you will substitute p for 15
so your equation will look like d=3(15)^2+168(15)-315
then you will simplify
to get d= 2025+2520-315
simplify again
to get d=4230

Gblock answered May 25, 2017

by Gblock

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1 vote

sub
-3(15^2)+168(15)-315=
-3(225)+2520-315=
-675+2205=
1530

d=1530 when p=15

Mustafa Tameemi answered May 28, 2017

by Mustafa Tameemi

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