4 years ago

Which expression is a difference of squares with a factor of 2x + 5? 4x2 + 10 4x2 – 10 4x2 + 25 4x2 – 25

Mathematics

2 answers:

Shtirlitz [24]4 years ago

5 0

Answer:

4x^2 -25

Step-by-step explanation:

The other factor of the difference of squares is the "conjugate" of the given one: (2x -5). Then their product is ...

(2x +5)(2x -5) = (2x)^2 -(5)^2 = 4x^2 -25

Lelechka [254]4 years ago

4 0

Answer:

The Answer On Edge Is D.), Have Fun Dreamers!

Step-by-step explanation:

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Company A is offering 2 1/2 pounds of chocolate for $32.50, while Company B is offering 2 3/4 of the same chocolate for $35.50

Ivan

Company B offers the lowest price.

Company A:
32.50/2.5 =
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Company B:
35.50/2.75 =
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3 years ago

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3 years ago

HELP!!! Increasing the side length of a cube by a factor of 2 increases the volume by a factor of ______

Keith_Richards [23]

The answer is d
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3 years ago

Part 1:

Gnom [1K]

P = 2(L + W)
L = 4/3W

P = 2(4/3W + W) <=== part 1 is D

when P = 28
28 = 2(4/3W + W)
28/2 = 4/3W + 3/3W
14 = 7/3W
14 / (7/3) = W
14 * 3/7 = W
42/7 = W
6 = W....width is 6 inches

L = 4/3W
L = 4/3(6)
L = 24/3
L = 8....length is 8 inches

A = L * W
A = 8 * 6
A = 48 in^2 <==== part 2

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3 years ago

50% to 36.75 what is the original price

svetoff [14.1K]

Answer: 73.50

Step-by-step explanation:

I am assuming that the new price is 36.75

50% is 1/2

36.75·2=original price

original price=73.50

8 0

3 years ago