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oksano4ka [1.4K]
3 years ago
15

Help me please...!!!

Mathematics
1 answer:
Bogdan [553]3 years ago
8 0
Answer is B.
8^1/3 = (2^3)^1/3 = 2
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5(x+4)= -2(-4-x)+3 <br> what is the answer?
lianna [129]

Answer:

x = -3

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Order of Operations: BPEMDAS
  • Equality Properties

Step-by-step explanation:

<u>Step 1: Define equation</u>

5(x + 4) = -2(-4 - x) + 3

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Distribute:                                   5x + 20 = 8 + 2x + 3
  2. Combine like terms:                   5x + 20 = 2x + 11
  3. Subtract 2x on both sides:        3x + 20 = 11
  4. Subtract 20 on both sides:        3x = -9
  5. Divide 3 on both sides:              x = -3

<u>Step 3: Check</u>

<em>Plug in x to verify it's a solution.</em>

  1. Substitute:                    5(-3 + 4) = -2(-4 - -3) + 3
  2. Simplify:                        5(-3 + 4) = -2(-4 + 3) + 3
  3. Add:                              5(1) = -2(-1) + 3
  4. Multiply:                        5 = 2 + 3
  5. Add:                              5 = 5

Here we see that 5 does indeed equal 5. ∴ x = -3 is a solution of the equation.

And we have our final answer!

5 0
3 years ago
Read 2 more answers
A sheet metal company had 5 contracts last month. The contracts were worth $5600, $2800, $7450, 1900, and $8900. Materials, sala
viktelen [127]

Answer:

Step-by-step explanation:

Do percent Proportions

23,750           x                                        

               ______

______      100

5

Cross multiply

23,750×100= 2375000

5×x= 5x

2375000÷5+

idk sorry

7 0
2 years ago
State whether the given measurements determine zero, one, or two triangles. A = 58°, a = 25, b = 28
Pavlova-9 [17]
I think the answer is one triangle not for sure though
6 0
2 years ago
Read 2 more answers
The product of two integers is 72. One number is two less than five times the other.
Mama L [17]
Other number: x
one number: 5x - 2

x (5x - 2)=72
5x^2 - 2x = 72
7 0
2 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=f%28x%29%20%3D%20%7Bx%7D%5E%7B2%7D%20%2B%204x%20-%205" id="TexFormula1" title="f(x) = {x}^{2}
frutty [35]

The inverse function theorem says

\dfrac{\mathrm df^{-1}}{\mathrm dx}(16)=\dfrac1{\frac{\mathrm df}{\mathrm dx}(f^{-1}(16))}

We have

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

defined on x>-2, for which we get

f^{-1}(x)=-2+\sqrt{x+9}

and

f^{-1}(16)=-2+\sqrt{16+9}=3

The derivative of f(x) is

f'(x)=2x+4

So we end up with

\dfrac{\mathrm df^{-1}}{\mathrm dx}(16)=\dfrac1{\frac{\mathrm df}{\mathrm dx}(3)}=\dfrac1{10}

6 0
2 years ago
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