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NemiM [27]
3 years ago
7

What is the inverse of the function f(x) = 2x – 10? A. h(x) = 2x - 5

Mathematics
1 answer:
Licemer1 [7]3 years ago
4 0

Answer:

f^-1(x)=1/2x+5

Step-by-step explanation:

y=2x-10

inteechange 'y' with 'x'

x=2y-10

make 'y' the subject

2y=x+10

divide by 2both sides

y=(x+10)÷2

y=1/2x+5

f^-1(x)=1/2x+5

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5 0
3 years ago
5. During the season, the Rangers played 25 games. They won 14 of the games.
sertanlavr [38]
Answer is 11/25 games lost which is 44%.

Step by step. 25 games minus 14 they won equals 11 games lost out of 25.

11 out of 25 = 11/25.

11/25 as a % - 11 divided by 25 = .44 which is 44%.

Check your work, 44% of 25 games = 11 games lost.
Problem solved.
6 0
2 years ago
X and y intercepts please
disa [49]
X intercept- 3.5
y intercept- 2.5
3 0
3 years ago
Read 2 more answers
Locate and label each set of points on the coordinate plane. Describe similarities of the ordered pairs in each set,
Leya [2.2K]

Answer:

THX FOR FREE POINT

Step-by-step explanation:

THANK YOU

8 0
3 years ago
Read 2 more answers
louise bought 80 metres of fencing to make an enclosure for her pet dog .tommy if louise expects a rectangular enclosure what is
OleMash [197]

Answer:

400 m^2.

Step-by-step explanation:

The largest  area is obtained where the enclosure is a square.

I think that's the right answer because a square is a special form of a rectangle.

So the square would be 20 * 20  = 400 m^2.

Proof:

Let the  sides of the rectangle be x and y m long

The area A = xy.

Also the perimeter  2x + 2y = 80

x + y = 40

y = 40 - x.

So substituting for y in A = xy:-

A = x(40 - x)

A = 40x - x^2

For maximum value of A  we find the derivative and equate it to 0:

derivative A' =  40 - 2x = 0

2x = 40

x = 20.

So y = 40 - x

= 40 - 20

=20  

x and y are the same value so x = y.

Therefore for maximum area the rectangle is a square.

3 0
3 years ago
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