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Mamont248 [21]
3 years ago
8

Which function is the inverse of f(x)=2x+3?

Mathematics
1 answer:
Savatey [412]3 years ago
7 0
The answer is f ⁻¹(x) = ½x - ³/₂
You might be interested in
Example 1
hjlf

Answer:

5:6

Step-by-step explanation:

5 0
3 years ago
One quarter of a number increased by one half of the same number is twelve HELP plz
Mandarinka [93]

Answer: 1/4x + 1/2x = 12

x = 16

Step-by-step explanation: combine the 1/4x and 1/2x to 3/4x because they are like terms then divide 12 by 3/4 or 0.75 to get 16

5 0
3 years ago
A high school chorus has $1000 in its school account at the beginning of the year. They are putting on a fall concert to raise m
vodomira [7]
There are several information's already given in the question. Based on those information's the answer can be easily deduced.
The equation given in the question is 
T = 10x + 1000
When the ticket rate is increased to $15, the equation becaomes
T = 15x + 1000
4000 = 15x + 1000
15x = 3000
x = 200 tickets
From the above deduction, it can be concluded that the correct option among all the options that are given in the question is the third option or option "C".
3 0
3 years ago
Amanufacturer of potato chips would like to know whether its bag filling machine works correctly at the 433 gram setting. It is
ankoles [38]

Answer:

There is not enough evidence to support the claim that the bags are under filled.

Step-by-step explanation:

Given :

Population mean, μ = 433

Sample size, n = 26

xbar = 427

Variance, s² = 324 ; Standard deviation, s = √324 = 18

The hypothesis :

H0 : μ = 433

H0 : μ < 433

The test statistic :

(xbar - μ) ÷ (s/√(n))

(427 - 433) / (18 / √26)

-6 / 3.5300904

T = -1.70

The Pvalue :

df = 26-1 = 25 ; α = 0.05

Pvalue = 0.0508

Since Pvalue > α ; WE fail to reject the Null and conclude that there is not enough evidence to support the claim that the bags are underfilled

3 0
3 years ago
Bruce saved $35.00 to buy a new video game . The game's original price was $42.00, but it was on sale for 30% off. The sales tax
fenix001 [56]

Answer:

The answer to your question is Yes, he can buy it.

Step-by-step explanation:

Data

Money saved = $35

Original Price = $42

Discount = 30%

Tax = 5 %

Process

1.- Calculate the price of the Video game with the discount

                    $42 --------------------- 100%

                         x  ---------------------   30%

                         x = (30 x 42) / 100

                         x = $ 12.6

   Price with discount = 42 - 12.6

                                    = $ 29.4

2.- Calculate the price of the Video game plus taxes

                      $29.4 ------------------- 100%

                          x      -------------------    5%

                          x = (5 x 29.4) / 100

                          x = 147 / 100

                          x = 1.47

    Price plus taxes = 29.4 + 1.47

                                = $ 30.87

3.- Conclusion

Bruce can buy the Video game because he saved $35 and the video game plus taxes cost $30.87.  

8 0
3 years ago
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