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aksik [14]
4 years ago
13

Find the inverse of the function and then determine whether the inverse is a function.

Mathematics
1 answer:
nirvana33 [79]4 years ago
5 0
The inverse of this function is not a function and this function isn’t inversable because it’s not one to one
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The National Association of Realtors reported that 26% of home buyers in the state of Florida are foreigners. A random sample of
Paladinen [302]

Answer:

Hypothesis

H_0: \pi=0.26\\\\H_a: \pi\neq 0.26

P-value = 0.078

Conclusion: The null hypothesis is rejected. There is enough evidence to claim that the proportion of foreigners home buyers is different from 26%.

Step-by-step explanation:

We will perform a hypothesis test on a proportion.

The null hypothesis states that 26% of home buyers are foreigners.

The alternative hypothesis states that the proportion is different than 26%.

H_0: \pi=0.26\\\\H_a: \pi\neq 0.26

The significance level is α=0.10.

The sample proportion is:

p=x/N=20/110=0.182

The standard error is:

\sigma_p=\sqrt{\frac{\pi(1-\pi)}{n} }=\sqrt{\frac{0.26*0.74}{110}} =\sqrt{\frac{0.1924}{110} } =\sqrt{0.00175} \\\\\sigma_p=0.042

Then, we can calculate the z-statistic as:

z=\frac{p-\pi+0.5/N}{\sigma_p} =\frac{0.182-0.26+0.004}{0.042}=- \frac{0.074}{0.042}= -1.762

The P-value can be calculated as:

P-value=2*P(z

The P-value is smaller than the significance level, so the effect is significant.

The null hypothesis is rejected. There is enough evidence to claim that the proportion of foreigners home buyers is different from 26%.

5 0
4 years ago
Solve the compound inequality. 2(x − 2) + 7 > −1 and 5 − 4x > 9
Alekssandra [29.7K]
2(x - 2) + 7
2 • x = 2x
2 • 2 = 4
2x - 4 + 7
-4 + 7= 3
Answer: 2x + 3 I’m

4 0
4 years ago
According to the Rational Root Theorem, which function has the same set of potential rational roots as the function g(x) = 3x5 –
BaLLatris [955]
The function that has the same set of potential rational roots is
 <span>4(3x5-2x4+9x3-x2+12). If you see it from your options I know this is the one who is closer to the same set you are looking for. </span>
7 0
4 years ago
Read 2 more answers
Isaac keeps track of the amount of money in his savings certificate each month. He has accumulated the following data:
Dafna1 [17]

Answer:

d. The common ratio is 1.1

Step-by-step explanation:

To see if the data has a common ratio or common difference, we have to see if the division between them is equal(common ratio), or if the difference between them is equal(common difference).

In this case, since 60.5 - 55 \neq 55 - 50, it has a common ratio.

To find it, we divide consecutive terms. For example:

\frac{55}{50} = 1.1

So the correct answer is:

d. The common ratio is 1.1

3 0
3 years ago
If you invest $1600 at 5.25% for 18 months, how much simple interest is earned?
Damm [24]

Interest calculator for a $600 investment. How much will my investment of 600 dollars be worth in the future? Just a small amount saved every day, week, or month can add up to a large amount over time. In this calculator, the interest is compounded annually.

7 0
3 years ago
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