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aev [14]
3 years ago
15

If f(x) = 5x + 4, which of the following is the inverse of (fx)?​

Mathematics
1 answer:
lys-0071 [83]3 years ago
3 0

Answer:

see explanation

Step-by-step explanation:

let y = f(x) and rearrange making x the subject, that is

y = 5x + 4 ( subtract 4 from both sides )

y - 4 = 5x ( divide both sides by 5 )

\frac{y-4}{5} = x

Change y back into terms of x

f^{-1} (x) = \frac{x-4}{5}

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mina [271]
Mind sharing the information needed to answer the question? Thanks!
6 0
2 years ago
If the 102,619 residents of a city are divided into 57 equal groups, then some residents don't fit into a group.
valentinak56 [21]

Answer:

1,800, 19

Step-by-step explanation:

102,619÷57=1800 (nearest one)

102,619-1800×57=19

3 0
2 years ago
Allowing 20% discount on the marked price. of 아 a watch, the value of the watch will be Rs. 2378. If the VAT of 10% is added, fi
Harrizon [31]

Answer:

The marked price of the watch is $2,702.27.

Step-by-step explanation:

Since allowing 20% discount on the marked price of a watch, the value of the watch will be Rs. 2378, to determine, if the VAT of 10% is added, it's marked price, the following calculation must be performed:

1 - 0.2 = 0.8

0.8 x 1.1 = 2378

0.88 = 2378

0.88 = 2378

0.8 = X

0.8 x 2378 / 0.88 = X

1,902.4 / 0.88 = X

2,161.81 = X

0.8 = 2,161.81

1 = X

2,161.81 / 0.8 = X

2,702.27 = X

Therefore, the marked price of the watch is 2,702.27.

4 0
2 years ago
Two of the opposite vertices of a square have the coordinates (4, - 4) and ( - 3, 3) respectively as shown on the grid below. Wh
iogann1982 [59]

Answer:

(4 , 3 ) and (-3 , -4)

Step-by-step explanation:

Other two vertices will be in 1st quadrant and 3 rd quadrant

6 0
2 years ago
I need help on #19 and 20<br> please help !!!
tekilochka [14]
        -3x - 3y > 5
-3x + 3y - 3y > 3x + 5
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                -3         -3
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The answer is C.

y < |x + 4| + 2

The answer is B.

3 0
3 years ago
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