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kolbaska11 [484]
3 years ago
6

-7-2x=7 (x+8) what does X equal ​

Mathematics
1 answer:
BartSMP [9]3 years ago
8 0

Answer:

x=−7

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

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Through: (2, 2), slope = 3<br> 1) y = 4x + 4 B) y = 4x – 4<br> *) y = 3r – 4 D) y = - 4x – 4
geniusboy [140]

Answer:

*) y = 3r-4

Step-by-step explanation:

3=6-4

6 0
2 years ago
First-person to answer correctly gets Brainliest
anzhelika [568]

Answer:

2. 6

4. 8

Step-by-step explanation:

Just multiply the sides by 2

7 0
2 years ago
Read 2 more answers
Which of the following pairs of functions are inverse’s of each other?
liubo4ka [24]

The answers in C are inverses of each other.


In order to find the inverse of any equation, you simply switch the x and f(x) values and then solve for the new f(x). What it will result in is your new inverse function. If we do this for each of the problems above, only one will produce the second equation properly. See the work below for how to do it for C.


f(x) = 11x - 4 ---> Switch the x and f(x)

x = 11f(x) - 4 ----> Add 4 to both sides

x + 4 = 11f(x) ----> Divide both side by 11

\frac{x+4}{11} = f(x) ----> Now put in the correct order

f(x) = \frac{x+4}{11}


Since our inverse matches the g(x) function, this means that C is the correct answer.

5 0
3 years ago
I need the ordered pair plz
Taya2010 [7]

Answer:

(\frac{-1}{2},-1)

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Algebra I</u>

  • Midpoint Formula: (\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Find points from graph.</em>

Point (-6, 5)

Point (5,  -7)

<u>Step 2: Find Midpoint</u>

Simply plug in your coordinates into the midpoint formula to find midpoint

  1. Substitute [MF]:                      (\frac{-6+5}{2},\frac{5-7}{2})
  2. Add/Subtract:                         (\frac{-1}{2},\frac{-2}{2})
  3. Divide:                                    (\frac{-1}{2},-1)
4 0
3 years ago
An alloy consists of nickel, zinc, and copper in the ratio 2:7:9. How many pounds of nickel have to be used to create alloy that
Hunter-Best [27]

We are given ratio nickel to zinc to copper = 2:7:9.

From this ratio we can see that <em>ratio of nickel to zinc is 2:7</em>.

Let us assume number of pounds of nickel have to be used to create alloy that contains 4.9 lb of zinc is x pounds.

So, we can setup a proportion as :

x : 4.9 =  2:7

Or

\frac{x}{4.9}=\frac{2}{7}

On cross multiplication, we get

7x= 4.9× 2

7x = 9.8

Dividing both sides by 7, we get

x = 1.4.

<h3>Therefore, 1.4 pounds of nickel have to be used to create alloy that contains 4.9 lb of zinc.</h3><h3 />
6 0
3 years ago
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