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2 years ago

Given that (-1,-1) is on the graph of f(x), find

Mathematics

1 answer:

nalin [4]2 years ago

8 0

Answer:

(-1, -6)

Step-by-step explanation:

f(x -5) is another way to say f(x) - 5

And f(x) - 5 is going down the y axis 5 points, so you end at (-1, -6)

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If $19,000 is invested in an

Brrunno [24]

Answer:$58900

Step-by-step explanation:

simple interest =amount x years x interest +amount

so it would be

$19000x30x7%+£19000=$58,900

4 0

2 years ago

A data set includes data from student evaluations of courses. The summary statistics are nequals83, x overbarequals3.32, sequa

Andrews [41]

Answer:

Hypothesis

Null hypothesis: $\mu =3.50$

Alternative hypothesis: $\mu \neq 3.50$

Statistic

$t=\frac{3.32-3.50}{\frac{0.56}{\sqrt{83}}}=-2.928$

P value

The degrees of freedom are given by:

$df=n-1=83-1=82$

And the p value would be given by:

$p_v =2*P(t_{(82)}$

Conclusion

Since the p value is lower than the significance level of 0.05 we have enough evidence to reject the null hypothesis and we can conclude that the true mean is significantly different from 3.5

Step-by-step explanation:

Information given

$\bar X=3.32$ represent the sample mean

$s=0.56$ represent the sample deviation

$n=83$ sample size

$\mu_o =3.5$ represent the value to test

t would represent the statistic

$p_v$ represent the p value

System of hypothesis

We want to verify if the true mean is equal to 3.5, the system of hypothesis are:

Null hypothesis: $\mu =3.50$

Alternative hypothesis: $\mu \neq 3.50$

Statistic

The statistic would be given by:

$t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}$ (1)

Replacing we got:

$t=\frac{3.32-3.50}{\frac{0.56}{\sqrt{83}}}=-2.928$

P value

The degrees of freedom are given by:

$df=n-1=83-1=82$

And the p value would be given by:

$p_v =2*P(t_{(82)}$

Conclusion

Since the p value is lower than the significance level of 0.05 we have enough evidence to reject the null hypothesis and we can conclude that the true mean is significantly different from 3.5

8 0

2 years ago

How do you round $3.80 to the nearest dollar?Explain your thinking

Elenna [48]

first you start with 0 then you know that is yours nothing so you can cancel zero and then you can take the eight can round up so you take the 8 and put it one more to do so it's $4 so in total will be $4 that's the answer

3 0

3 years ago

Read 2 more answers

Please hurry! which of the following is true?

adelina 88 [10]

Answer: it would be the first option. they are both the first letters of their little cluster of letters (don't judge, i have no idea what it's called haha) and the rest of them do not match up. so, it is the first answer.

3 0

2 years ago

Read 2 more answers

A student builds a model of her bathroom. The scale is 1:25. In the scale model, the students bed is 3 inches long.

Bas_tet [7]

Answer:

Step-by-step explanation:

The answer is 75 because you have to cross mutiply:

1 3

25 x

4 0

2 years ago