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Bumek [7]
3 years ago
10

Please help!

Mathematics
1 answer:
OlgaM077 [116]3 years ago
4 0

The 1st graph shows a radical expression, where:

to find the inverse, replace f(x) with y, switch the x and the y, then solve for y

The only graph showing exponential growth is the 2nd graph (note how at 1 it's 1, at 2 it's 4, at 3 it will be 9, etc.)

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Please help it will be brainlist please make sure you are 100% the awnser is right
Dominik [7]

Answer:

Step-by-step explanation:

Step 1: Sum of angles on a straight line is 180

Step 2:

2x + 25 + y = 180

2x + y = 180 - 25

2x + y = 155  (1)

Step 3:

3x - 10 + y = 180

3x + y = 180 + 10

3x + y = 190    (2)

Step 4: Substract equation 1 from 2

3x + y - 2x - y = 190 - 155

      x = 35

Step 5:

Substitute x in equation 1 to find y

2x + y = 55

2(35) + y = 155

70  +  y = 155

  y = 155 - 70

   y = 85

4 0
3 years ago
A customer purchased a jacket for $65. This was 80% of the original price.What was the original price?
Sergeu [11.5K]
The answer is $81.25. Because you take the equation x times .8 = 65 and solve for x.
8 0
4 years ago
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Formulate the quadratic function that contains the points (-1,2), (0,-1) and (2,5).
Pavlova-9 [17]

Answer:

option 2

2x²- x - 1

Step-by-step explanation:

We are given points: (-1,2), (0,-1) and (2,5)

Substitute each point one by one in the quadratic equation to check if the quadratic equation contains all points mention.

2) f(x) = 2x²- x - 1

   Point(-1,2)

   f(-1) = 2(-1)² -(-1) -1

   2 = 2 + 1 - 1

   2 = 2

  Point(0,-1)

   f(0) = 2(0)² -(0) -1

   -1 = 0 - 0 -1

   -1 = -1

  Point(2,5)

  f(2) = 2(2)² -(2) -1

  5 = 8 - 2 -1

  5 = 6 - 1

  5 = 5    

   

4 0
4 years ago
What is the value of x in the equation 3x-15=-18
luda_lava [24]

Answer:

x = -1

Step-by-step explanation:

3x - 15 = -18

Add 15 to both sides;

3x = -3

Divide both sides by 3;

x = -1

6 0
3 years ago
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What equation matches the table?
klemol [59]
G = f + 10

The table is increasing by 10. Therefore the equation that represents this is
g = f + 10
8 0
3 years ago
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