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stiv31 [10]
3 years ago
11

Evaluate the function for x=2:f(x)=7x-5

Mathematics
2 answers:
Alina [70]3 years ago
8 0
The answer will be 9. Beacuse 7×2 =14 and then 14 -5 = 9
Natali5045456 [20]3 years ago
7 0

The answer would be A) 9

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Owen solves the equation below and his steps are shown. When he plugged his solution back into the original equation, he did not
Usimov [2.4K]

Answer:

THE FIRST STEP in which he made an error is step 4, instead of subtracting 2x from either side of the equation, he is to add 2x to either side of the equation.

The correct value of x is 3.6

Step-by-step explanation:

To solve the given equation, we will follow the steps below;

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

step 1 : open the parentheses

That is,   3x - 12 = -4 - 2x  + 10

Step 2 : simplify, that is, yo can add the or subtract like terms

hence

3x - 12 = -2x -4 + 10

step 3 :

3x - 12 = -2x + 6

step 4 : Add 2x to both-side of the equations in order to nullify the 2x on the right-hand side of the equation

3x + 2x - 12  = -2x + 2x + 6

step 5:

5x - 12  = 6

step 6:  Add 12 to both-side of the equation

5x - 12 + 12  = 6 + 12

step 7

5x  = 18

Step 8: divide both-side of the equation by   5

5x/5 = 18/5

step 9:

x =3.6

THE FIRST STEP in which he made an error is step 4, instead of subtracting 2x from either side of the equation, he is to add 2x to either side of the equation.

That is why he got the wrong answer.

4 0
3 years ago
EASY 5 POINTS!!! A spherical ball just fits inside a cylindrical can, 16 centimeters tall, with a diameter of 16 centimeters. Wh
valkas [14]

formula for volume of a sphere is V=4/3 x pi x R63

if diameter = 16 than radius = 16/2 = 8

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8 0
3 years ago
please help!! 20 points if u just comment to take my points or guess i’ll make sure ur account gets banned. thank you!!
LekaFEV [45]

Answer:

I believe it's A and B

Step-by-step explanation:

3 0
2 years ago
What is 8^3 simplyfied
prisoha [69]

Answer: 8*8*8

Since 8 is being multiplied to the 3 power we multiply it 3 times.

8^3 is written like 8*8*8

8*8*8=512

5 0
3 years ago
Read 2 more answers
23. What does the term expense mean?
katovenus [111]

Answer and  explanation :

  • Expense is defined as the cost to run a business.
  • It can be separated into various categories of day to day expense and one time expense.
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  • Whereas some expenses like repairs and maintenance are charged once in a while.

5 0
3 years ago
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