3 years ago

What is the value of (x + 4)(x – 5) when x = 5? A. 20 B. 4 C. 0 D. 1

Mathematics

1 answer:

sattari [20]3 years ago

4 0

(5+4)(5-5)
(9)(0)
0
The answer is C

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Sedbober [7]

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3 years ago

Heron’s formula: Area = Triangle PQR has sides measuring 9 feet and 10 feet and a perimeter of 24 feet. What is the area of tria

VladimirAG [237]

Hello,

Let's assume a,b,c the 3 sides of the triangle.

a=9
b=10
c=24-a-b=5

$p= \dfrac{a+b+c}{2} =12\\

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