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3 years ago

Which transformation maps trapezoid 1 to trapezoid 2?

Mathematics

2 answers:

Luden [163]3 years ago

3 0

Answer: that would be a reflection

algol [13]3 years ago

3 0

Answer:

Reflection

Step-by-step explanation:

Given in the picture are some trapezoids.

Of these we find that trapezoids 1 and 2 are on either side of the x axis with same dimensions.

By seeing the shape and size of trapezoid on the graph, we find that the reflection would map trapezoid to trapezoid 2.

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Consider a left-tailed test, where the p-value is found to be 0.10. If the sample size n for this test is 49, then the t statist

tigry1 [53]

Answer:

$df=n-1=49-1=48$

We know that the p value is 0.1, and since is a left tailed test would be given by:

$p_v = P(t_{48} < t_{calculated})=0.1$

And we can find the calculated value using excel or the t table.

If we use the following excel code we got: "=T.INV(0.1,48)"

And the calculated value is $t_{calculated}=-1.29944$

Step-by-step explanation:

State the null and alternative hypotheses to be tested

We need to conduct a hypothesis in order to determine if the true mean is lower than specified valu $\mu_o$ , the system of hypothesis would be:

Null hypothesis: $\mu \geq \mu_o$

Alternative hypothesis: $\mu < \mu_o$

Compute the test statistic

We don't know the population deviation, so for this case is better apply a t test to compare the actual mean to the reference value, and the statistic is given by:

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

t-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".

We can find the degrees of freedom for this test given by:

$df=n-1=49-1=48$

We know that the p value is 0.1, and since is a left tailed test would be given by:

$p_v = P(t_{48} < t_{calculated})=0.1$

And we can find the calculated value using excel or the t table.

If we use the following excel code we got: "=T.INV(0.1,48)"

And the calculated value is $t_{calculated}=-1.29944$

3 0

3 years ago

U equals vw plus z solve for v

padilas [110]

Subtract z from the right side so that it becomes... u - z = vw

Then all you do is divide the right side of the equation(or equals sign) by w because your goal is to get whatever you're solving for by itself.

Your answer, then, is... u-z/w = v

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3 years ago

Find the slope of a line parallel to the line through the given points. P(-2, 4), Q(6, -2) 4/3 3/4 -3/4

ehidna [41]

Attached the solution and work.