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svp [43]
3 years ago
15

20 points if you help me on this proublem

Mathematics
1 answer:
VMariaS [17]3 years ago
3 0

Answer:

1) f(x) = x/8 - 7

2) f(x) = 1 - x/3

3) f(x) = 20 - 0.25x

4) f(x) = x + 7

Step-by-step explanation:

f^-1 = 8(x + 7)

x + 7 = y/8

x = y/8 - 7

f(x) = x/8 - 7

f^-1 = -3(x - 1)

y/-3 = x - 1

x = 1 - y/3

f(x) = 1 - x/3

f^-1 = 4(20 - x)

y/4 = 20 - x

x = 20 - y/4

f(x) = 20 - x/4

f(x) = 20 - 0.25x

f^-1 = x - 7

y = x - 7

x = y + 7

f(x) = x + 7

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the first term of a geometric sequence is 1, and the common ratio is 10. what are the 2nd and 3rd terms of the sequence?
Sophie [7]

Answer:

10, 100

Step-by-step explanation:

Each term is multiplied by the common ratio to get the next term.

... 1 × 10 = 10 . . . . . second term

... 10 × 10 = 100 . . . third term

7 0
4 years ago
Free-falling body: h = -15t + 1/2at^2 + 5 (Solve for a)
slava [35]

When a body is said to be in a state of free fall, therefore this means that the only force associated with it is gravity. Gravity imposes an acceleration of about 9.81 m/s^2. Therefore we do not need to calculate for a, since a = g. (g = acceleration due to gravity)

 

<span>a = 9.81 m/s^2</span>

7 0
4 years ago
You need to buy 12 pounds of chicken for a barbecue that you are planning. You found an ad in the Northwest Florida Daily News t
Keith_Richards [23]

Answer:

yes

Step-by-step explanation:

The difference in the cost per pound is $6.

For 12 lb, the total difference in $6 × 12 = $72.

If the Fresh Market is close enough and you have the time, it is worth the drive since you will save $72.

5 0
3 years ago
Max deposited $1200 into an account that pays simple interest at an annual rate of 4%. What is the value of his initial deposit
USPshnik [31]
Hi,
Principal=$1200, R=3% pa, T=3 yrs
SI=PRT/100
SI=1200*4*3/100
SI=$144
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Hope this helps you.
6 0
3 years ago
Which expression is equivalent to the following complex fraction?
user100 [1]

The equivalent expression of (1 + \frac{1}{y}) \div (1-\frac 1y) is \frac{y + 1}{y-1}

<h3>How to determine the equivalent fraction?</h3>

The fraction is given as:

(1 + \frac{1}{y}) \div (1-\frac 1y)

Take the LCM

\frac{y + 1}{y} \div \frac{y-1}y

Express as products

\frac{y + 1}{y} \times \frac{y}{y-1}

Evaluate the product

\frac{y + 1}{y-1}

Hence, the equivalent expression of (1 + \frac{1}{y}) \div (1-\frac 1y) is \frac{y + 1}{y-1}

Read more about equivalent expression at:

brainly.com/question/24734894

#SPJ1

4 0
2 years ago
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