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Solnce55 [7]
3 years ago
14

If f(x) and f-1(x) are inverse functions of each other and f(x) = 2x + 5, what is f-1(8)?

Mathematics
1 answer:
dmitriy555 [2]3 years ago
6 0

Answer: 3/2

Step-by-step explanation:

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She used a graphing tool to display the data in a scatter plot, with x representing the number of ice cubes and y representing t
azamat

The glass will contain <u>89.086 milliliters</u> of juice with 7 ice cubes, using the equation of the line of best fit, y =  -29.202x + 293.5.

In the question, we are informed that the equation of the line of best fit, for the, scatter plot with x representing the number of ice cubes and y representing the milliliters of juice is given as y =  -29.202x + 293.5.

We are asked to tell how many milliliters of juice will be in a glass with 7 ice cubes based on the line of best fit.

To find the milliliters of juice in the glass with 7 ice cubes, we substitute x = 7, in the equation of the line of best fit, to get a value of y, representing the milliliters of juice in the glass.

Thus,

y =  -29.202x + 293.5,

or, y =  -29.202(7) + 293.5 {Substituting x = 7},

or, y = -204.414 + 293.5,

or, y = 89.086.

Thus, the glass will contain <u>89.086 milliliters</u> of juice with 7 ice cubes, using the equation of the line of best fit, y =  -29.202x + 293.5.

Learn more about the equation of the line of best fit at

brainly.com/question/1564293

#SPJ1

4 0
2 years ago
As a lifeguard, you can earn $5 per day plus $7.50 per hour. How many hours you must work to earn $50 in one day?
ELEN [110]

Answer:

Step-by-step explanation:

Earnings = 5 + 7.50x  You want to earn 50.00

50 = 5 + 7.50x             Set up equation  

45 = 7.50x                    Subtract 5

45/7.50 = (7.50/7.50) x Divide by 7.5

x = 6

You need to work 6 hours.

3 0
3 years ago
Can someone please help me !!
Korolek [52]
Hey!!

here is your answer >>>

let's find x first ,

2x + 48 = 180

2x = 132

x = 66!.

there is a right angle,

the angle below the right angle is also 90°

angle y would be ,

180 - (90+ 48)

180- 138

=> 42

answer is 42!.

if helped!. brainliest
5 0
3 years ago
2(4+9w) what is the answer
EleoNora [17]

Answer:

8+18w

Step-by-step explanation:

2(4+9w)

Distribute the 2

2*4 + 2*9w

8+18w

6 0
3 years ago
Read 2 more answers
Select the correct answer.
ziro4ka [17]

Answer:

A function only

Step-by-step explanation:

This situation represents a function only.  Air pressure is the independent (input) variable and the weight of the candy dispensed is the dependent variabe:

weight = 3(pressure on the lever)

This has the form of a function, as well as of a direct proportion.

6 0
3 years ago
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