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koban [17]
4 years ago
13

If x = 5, what is the value of 4x2 - 7? A. 107 B. 395 C. 93 D. 128

Mathematics
2 answers:
Agata [3.3K]4 years ago
7 0

____________________________________________________

Plug in 5 to x:

4(5)² - 7

Solve:

4(5)² - 7

Square the 5 first.

4(25) - 7

100 - 7

93

Your answer would be C). 93

____________________________________________________

nika2105 [10]4 years ago
4 0

Answer: C

Step-by-step explanation:

4 ×5 to the power 2 is 100

100-7=93

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I need your help again guys!
solmaris [256]

ANSWER

x = 13

EXPLANATION

Use the Pythagoras Theorem to obtain,

{x}^{2}  =  {12}^{2}  +  {5}^{2}

This implies that,

{x}^{2}  = 144 + 25

{x}^{2}  = 169

Take the positive square root of both sides to get,

x =  \sqrt{169}

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8 0
4 years ago
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Recall that for |<em>x</em>| < 1, we have

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4 0
3 years ago
Please help at least one of them number it please!!!!
andrew11 [14]

Answer:

Step-by-step explanation:

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8. 33/n

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11. c + 15

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15. s - 38

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3 years ago
A square ceiling has a diagonal of 24 ft. Shelton wants to put molding around the perimeter of the ceiling.
Gala2k [10]

Answer:

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3 years ago
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