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borishaifa [10]
3 years ago
7

Simplify (7x) - (-2x). 5x -5x 9x -9x

Mathematics
2 answers:
Murrr4er [49]3 years ago
6 0
9x is your answer       hope this helped a lot
vredina [299]3 years ago
3 0

I believe the answer to your question is 9x. I apologize in advance if I gave you the wrong answer.

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For every 15 students who run track, there are 7 students who play baseball. There are 112 more students
wolverine [178]

Answer:

There are 210 students running track and 98 students that play baseball.

Step-by-step explanation:

15*14= 210 and 7*14 = 98, 210 - 98 = 112. If this was correct feel free to mark me as brainiest :)

4 0
3 years ago
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4. Find the surface area. Help me please
pogonyaev

Step-by-step explanation:

2πrh+2πr²=surface area

2π(3)(6)+2π(3²)

36π+18π

54π

8 0
3 years ago
Which function is f(x) equal to f^-1(x)?
Morgarella [4.7K]

Answer:

c. f(x) x+1/x-1

Step-by-step explanation:

To answer this question, we need to check each answer one by one until we find the right one.  

y = (x+6)/(x-6)  

switch x and y  

x = (y+6)/(y-6)  

solve for y  

x(y-6) = y+6  

xy - 6x = y+6  

y(x-1) = 6x+6  

y = (6x+6) /(x-1) = 6(x+1)/(x-1)  

f^-1(x) = 6(x+1)/(x-1)  

y = (x+2)/(x-2)  

switch x and y  

x = (y+2)/(y-2)  

solve for y  

x(y-2) = y+2  

xy -2x = y+2  

y(x-1) = 2x+2  

y = (2x+2)/(x-1)  

f^-1(x) = 2(x+1)/(x-1)  

y = (x+1)/(x-1) ------ correct one  

switch x and y  

x = (y+1)/(y-1)  

solve for y  

x(y-1) = y+1  

xy - x = y+1  

y(x-1) = x+1  

y = (x+1)/(x-1)  

f^-1(x) = (x+1)/(x-1)  

f(x) = f^-1(x)

6 0
3 years ago
Read 2 more answers
What is the distance between the two points loacted at 3 , 8 and 10 , 8
damaskus [11]

Answer:

Step-by-step explanation:

d=(10-3)^2+(8-8)^2=(7)^2+(0)^2=49

since it is in radical the the answer is 7

4 0
3 years ago
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Use the give points and line. determine the slope of the line.
wariber [46]
Slope=1 because 1/1=1
5 0
3 years ago
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