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Novay_Z [31]
4 years ago
7

Let f(x) = 5x + 12. Find f−1(x).

Mathematics
1 answer:
krok68 [10]4 years ago
7 0
Replace,

x = y

Or

x = f(x)

then us stay:

x = 5y + 12

Isolate 5y


5y = x - 12

Dividing both the sides by 5

y = x/5 - 12/5

Then, replace y = f^-(x)

f^-(x) = x/5 - 12/5

Hope this helps



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I need help please and thank you
dimaraw [331]

Answer:

b x h

15 in x 12 in = 180in^2

the ^2 stands for inches square

8 0
3 years ago
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If y varies directly as z and inversely as x and y = –18 and z = 3 when x = 6, find y when x = 5 and z = –5.
JulijaS [17]

Answer:

y = 36

Step-by-step explanation:

Given y varies directly as z and inversely as x then the equation relating them is

y = \frac{kz}{x} ← k is the constant of variation

To find k use the condition y = - 18, z = 3 when x = 6 , then

- 18 = \frac{3k}{6} ( multiply both sides by 6 )

- 108 = 3k ( divide both sides by 3 )

- 36 = k

y = \frac{-36z}{x} ← equation of variation

When x = 5 and z = - 5, then

y = \frac{-36(-5)}{5} = \frac{180}{5} = 36

6 0
3 years ago
Multiply.<br><br> (−8)⋅(−15)⋅(4)<br><br> Enter your answer in the box.
Bad White [126]

Answer:

la respuesta es 480

Step-by-step explanation:

(-8)(-15)=8*15=120

120*(4)

480

7 0
2 years ago
Read 2 more answers
HELP DUE IN 10 MINUTES!! WILL GIVE BRAINLEST!!
Alekssandra [29.7K]

I have attached a photo with solution:

3 0
3 years ago
Line m passes through the points (3, 7) and (6, 12) while line n passes through the points (-5, 1) and (-2, 6). Which statement
vodomira [7]

Hey there! I'm happy to help!

First, let's find the slope of the two lines. To find the slope, you divide the difference in the y-values by the difference in the x-values.

LINE M

7-12/3-6=-5/-3= <u>5/3</u>

LINE N

1-6/-5+2=-5/-3=<u>5/3</u>

If lines have the same slopes, they are parallel because they are always moving at the same incline and therefore will never meet. This matches what answer A says.

Therefore, the correct answer is A) Lines m and n have the same slope so they are parallel.

I hope that this helps! Have a wonderful day!

7 0
3 years ago
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