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maks197457 [2]
2 years ago
11

Work out the inverse function y=x-2

Mathematics
2 answers:
AURORKA [14]2 years ago
7 0

Answer:

x + 2

Step-by-step explanation:

Replace the x with y.

Making is x = y -2

Solve for x=y-2

and you get x+2

marissa [1.9K]2 years ago
7 0

Answer:

x+2

Step-by-step explanation:

When doing inverse functions, you switch the x and y.

x = y-2

Then you solve for y (add the 2 to the other side to get "y" by itself)

y = x+2

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What is the value of the expression 5y2 + 4x when x = 2.5 and y = 3?
LUCKY_DIMON [66]

Answer:

it is 55 the 2nd one

5(9)+10=55

4 0
2 years ago
Read 2 more answers
Evaluate the expression. ​ (26÷13)⋅(−7)+14−4 ​ Enter your answer in the box
Vedmedyk [2.9K]
(26/13) (-7) + 14 - 4

2(-7) + 14 - 4

-14 + 14 - 4

-4
6 0
3 years ago
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Kevin and his children went into a restaurant and he bought $31.50 worth of hotdogs and drinks. Each hotdog costs $4.50 and each
stich3 [128]

Answer:

<em>He bought 6 hotdogs and 2 drinks</em>

Step-by-step explanation:

<u>System of Equations</u>

Kevin and his children went into a restaurant and bought $31.50 worth of hotdogs and drinks. Each hotdog costs $4.50 and each drink costs $2.25.

To solve the system of equations, we'll call the variables:

x = number of hotdogs

y = number of drinks

The first condition yields the equation:

4.50x + 2.25y = 31.50          [1]

It's also known he bought 3 times as many hotdogs as drinks, thus:

x = 3y         [2}

Substituting [2] in [1]:

4.50(3y) + 2.25y = 31.50

Operating:

13.5y + 2.25y = 31.50

15.75y = 31.50

y = 31.50/15.75

y = 2

And

x = 3*2 = 6

He bought 6 hotdogs and 2 drinks

5 0
2 years ago
10. Factor<br> Please help me I will mark as brainliest
suter [353]

Answer:

<u>(3w + 7)² or (3w + 7)(3w + 7)</u>

Step-by-step explanation:

<u>Identity</u>

  • a² + 2ab + b² = (a + b)² = (a + b)(a + b)

<u>Solving</u>

  • 9w² + 42w + 49
  • (3w)² + 2(3w)(7)  + (7)²
  • <u>(3w + 7)² or (3w + 7)(3w + 7)</u>
6 0
2 years ago
Yori has 14.25 cups of cupcake batter. If each cupcake uses 0.75 cup of batter, how many cupcakes can Yori make?
Temka [501]

Answer:

She can make 19 cupcakes!!

Have an amzing day!!!!!



6 0
2 years ago
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