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amm1812
3 years ago
10

Yoo i need help !!! its math and i havent learned it yet

Mathematics
2 answers:
Kitty [74]3 years ago
6 0

Answer:

9x+18

Step-by-step explanation:

Let y=x/9 -2

or,9y+18=x

or,f(x)=9y+18

Then,f^-1(x)=9x+18

BlackZzzverrR [31]3 years ago
4 0

Answer:

{f}^{ - 1} (x) = 9x + 18

Step-by-step explanation:

f(x) =  \frac{1}{9}x - 2

y = \frac{1}{9} x - 2

x =  \frac{1}{9}y - 2

x + 2 =  \frac{1}{9}y

9x + 18 = y

{f}^{ - 1} (x) = 9x + 18

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The graph of the function y = x2 + 2 is shown. Which equation will shift the graph of the function down 4 units?
ziro4ka [17]

This graph shifted down 4 units would be y = x^2 - 2.


Different shifts in standard graphs each have to be done in their own way. Shifting up and down is done by manipulating the y-intercept, which is the number at the end of the equation. Since we started at +2 and it is going down 4, it brings us to -2.

6 0
3 years ago
Suppose a production facility purchases a particular component part in large lots from a supplier. The production manager wants
musickatia [10]

Answer:

We need a sample size of at least 1161.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

The margin of error for the interval is:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

For this problem, we have that:

\pi = 0.22

90% confidence level

So \alpha = 0.1, z is the value of Z that has a pvalue of 1 - \frac{0.1}{2} = 0.95, so Z = 1.645.

How large a sample should she take?

We need a sample size of at least n.

n is found when M = 0.02

So

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

0.02 = 1.645\sqrt{\frac{0.22*0.78}{n}}

0.02\sqrt{n} = 1.645\sqrt{0.22*0.78}

\sqrt{n} = \frac{1.645\sqrt{0.22*0.78}}{0.02}

(\sqrt{n})^{2} = (\frac{1.645\sqrt{0.22*0.78}}{0.02})^{2}

n = 1160.88

Rounding up

We need a sample size of at least 1161.

7 0
3 years ago
Y=7(15+x) solve for x m888888888888
horsena [70]
         Y = 7(15 + x)   Use the Distributive Property
         Y = 105 + x     Subtract 105 from both sides
Y - 105 = x               Switch the sides to make it easier to read
          x = Y - 105
4 0
3 years ago
Read 2 more answers
X 0,1,3,5 y 0,5,10,15 proportional
Julli [10]

Answer:

Yes. This is a proportional relationship.

Step-by-step explanation:

I don't know if you mean "Does the table represent a proportional relationship?" If you do, then the answer is yes it does.

When a linear function contains 0,0 then the relationship is proportional.

If the y intercept is anything but 0, then the relationship is not proportional either.

5 0
2 years ago
What is the measure of angle S?
Alex

132 + 56 + 79 = 267

360 - 267 = 93

answer is 93 degrees

8 0
3 years ago
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