3 years ago

What is the value of 2x^2-2(x+4) when x = 5? A.–32 B. 24 C. 32 D. 40

Mathematics

2 answers:

Tanzania [10]3 years ago

4 0

Answer:

Step-by-step explanation:

KatRina [158]3 years ago

3 0

Answer:

Algebra 1 Answer Key with notes.pdf go on that and there are the anwers and the answer key :)

Step-by-step explanation:

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<img src="https://tex.z-dn.net/?f=3x%2B7%3D12-2x%3B1" id="TexFormula1" title="3x+7=12-2x;1" alt="3x+7=12-2x;1" align="absmiddle"

Igoryamba

Step-by-step explanation:

$3x + 7 = 12- 2x \\ 3x + 2x = 12 - 7 \\ 5x = 5 \\ x = \frac{5}{5} \\ x =1$

5 0

3 years ago

Find the value of X. round to the nearest tenth

Kamila [148]

There is no equation, what is the equation?

7 0

3 years ago

Read 2 more answers

Evan borrowed money from his mom. If he paid her back 9.60 which is 20% of the total he owns, then how much did he owe her to be

lyudmila [28]

Given:

Evan paid his mom back 9.60 which is 20% of the total he owns.

To find:

How much did he owe her to begin with.

Solution:

Let x be the amount Evan owns.

According to the question,

20% of x = 9.60

$\dfrac{20}{100}x=9.60$

$\dfrac{1}{5}x=9.60$

Multiply both sides by 5.

$x=48$

Therefore, Evan owns 48 from his mom.

7 0

3 years ago

Derek reads at a rate of25 words per minute. If he reads constantly until he is finished, how long with it take him to read a 22

emmasim [6.3K]

225/25= 9

It would take Derek 9 minutes to read the 225-word article.

I hope this helps!
~kaikers

4 0

4 years ago

What is the surface area of the square pyramid?

beks73 [17]

Answer:

65 sq ft

Step-by-step explanation:

SA(sq pyr) = area of base + 1/2(perimeter of base)x(slant height)

SA = 5² + 1/2(10)(8)

SA = 25 + 40

SA = 65

6 0

3 years ago