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Ann [662]
3 years ago
11

I need help it’s hard

Mathematics
1 answer:
Reika [66]3 years ago
6 0

9514 1404 393

Answer:

  f^-1(x) = (x +4)/3

Step-by-step explanation:

The inverse function is found by swapping x and y, then solving for y.

  y = 3x -4 . . . . . function y = f(x)

  x = 3y -4 . . . . . inverse relation

  x +4 = 3y . . . . add 4

  (x +4)/3 = y . . . divide by 3. This is the inverse function

  f^-1(x) = (x +4)/3

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givi [52]

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6 x 3/2 = 18/2 or 9 cups of orange juice. Hope this helps :) Please mark brainliest if you can ;)


6 0
3 years ago
Two supplementary angles are in a ratio of 7:11. find the measures of each angle
Over [174]

Answer:

70° and 110°

Step-by-step explanation:

Supplementary angles sum to 180°

sum the parts of the ratio, 7 + 11 = 18 parts

Divide 180° by 18 to find the value of one part of the ratio.

180° ÷ 18 = 10° ← value of 1 part, thus

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5 0
3 years ago
The of the shorter piece.
d1i1m1o1n [39]

Answer:

28

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the ratio of their ages is 9 : 7 = 9x : 7x ( x is a multiplier ) , then

9x = 7x + 8 ( Jameelah is 8 years older than Anna )

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2x = 8 ( divide both sides by 2 )

x = 4 , then

7x = 7 × 4 = 28

That is Anna is 28

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