2 years ago

Please help! hurry, It's 8 pm and I'm tired :(

Mathematics

1 answer:

Murrr4er [49]2 years ago

3 0

Answer:

I’m pretty sure x=6

Step-by-step explanation:

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!!!!!!!!!!!!!!!!!!!!

Andru [333]

Answer:

$f^{-1}(x)=4x+20$

Step-by-step explanation:

Given

$f(x)=\frac{x}{4}-5\\ \\y=\frac{x}{4}-5$

Swap x and y and solve for y

$y=\frac{x}{4}-5\\ \\x=\frac{y}{4}-5\\ \\x+5=\frac{y}{4}\\ \\4(x+5)=y\\\\y=4x+20$

Final answer

$f^{-1}(x)=4x+20$

Keep in mind that we need to swap the variables because a function and its inverse are symmetrical about the line y=x. See the graph below.

3 0

2 years ago

The ratio of peter's height to albertina's height is 147cm what is peter's height

stellarik [79]

Answer:

4'9.87

Step-by-step explanation:

8 0

2 years ago

A tree is 4 is 4.4 feet tall. It is expected to grow by 1 feet per year.

LekaFEV [45]

Answer:

it should be 10.4 in 6 years.

Step-by-step explanation:

not sure what you were asking.

6 0

2 years ago

A group of twelve people paid a tootle of 50 for admission if 8 of them were children how many were grouped as adults and how ma

Scrat [10]

8 children ($4 x 8 = $32)
2 adults ($6 x 2 = $12)
2 senior citizens ($3 x 2 = $6)

32+12+6 = 50

8 0

2 years ago

12/18 ATB - Review question - Evaluate 18x + 75 when x= 8.

boyakko [2]

Answer:

solution

x=8

so,

18 .8 +75

144 +75

219

7 0

2 years ago