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Marianna [84]
2 years ago
12

Which represents the inverse of the function f(x) = 4x?

Mathematics
1 answer:
vampirchik [111]2 years ago
8 0

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

Step-by-step explanation:

Let f(y)=x.

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

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Use special right triangles to solve for the exact value of x.
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Answer:

x = 16

Step-by-step explanation:

Using the cosine ratio in the right triangle and the exact value

cos60° = \frac{1}{2}

cos60° = \frac{adjacent}{hypotenuse} = \frac{8}{x}

Multiply both sides by x

x × cos60° = 8, that is

x × \frac{1}{2} = 8

Multiply both sides by 2

x = 16

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3 years ago
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A car rental agency advertised renting a car for $24.95 per day and $ 0.34 per mile. If Kevin rents this car for 2 ​days, how ma
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Answer:

441 miles

Step-by-step explanation:

Write and solve an inquality to answer this question:

($24.95/day)(2 days) + ($0.34/mile)x ≤ $200

The first term becomes $49.30; the second term $0.34x; their sum must be ≤ $200.

More concisely, 49.30 + 0.34x ≤ 200.

Isolate x by subtracting 49.30 from both sides:

0.34x ≤ 150.10.

Divide both sides by 0.34:

x ≤ 150.10/0.34, or 441.47 miles.  You must round this off to the nearest whole mile, which would be 441 miles.

5 0
4 years ago
BRAINLIEST TO CORRECT
Brrunno [24]

Answer:

It was 1,474.65ft last year.

Step-by-step explanation:

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1,474.65 / 1.13 = 1.305

4 0
3 years ago
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X varies inversely with y and x = 8 when y = 10, what is the value of y when x=6
Alja [10]
The right answer for the question that is being asked and shown above is that:

x = k (1/y)
k = xy

x1y1 = x2y2
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So the answer is 40/3
<span>X varies inversely with y and x = 8 when y = 10, what is the value of y when x=6</span>
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4 years ago
Juarez scored 32 points in a basketball game. He scored twice as many baskets worth 3 points than baskets worth 2 points. How ma
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Answer:

8, 3 pointers =24 points 4, 2 pointers = 8points 24+8= 34 points

Step-by-step explanation:

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3 years ago
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