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3 years ago

|x−y+z|, if x=3; y=−2; z=−6

Mathematics

1 answer:

Finger [1]3 years ago

3 0

Answer:

Step-by-step explanation:

Try the question without the absolute value brackets first.

Then it would be 3+2-6

Since it states "x-y" and y is -2, then it would be 3+2 since a negative times a negative becomes a positive

Same thing for "z", instead of +6 it would be -6 because a negative times a positive is still a negative

Now, 3+2-6 is -1 but MAKE SURE to put the absolute value brackets back. Making the answer a positive number. Therefore, it would be 1

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Answer: X = 25

Step-by-step explanation: 5 * 25 = 125

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3 years ago

Factor 6y^2(y^2+6y+9) completely.

natali 33 [55]

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2 years ago

What value of x will make the question below truw?

MatroZZZ [7]

1/2 (6x - 10) + 10 = 5x - 13

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3 years ago

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UkoKoshka [18]

Answer:

Step-by-step explanation:

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3 years ago

The test statistic of z= -2.39 is obtained when testing the claim that p<0.52.

krek1111 [17]

Considering the situation described, we have that:

a) The critical value is of z = -1.645.

b) Since the test statistic is less than the critical value, we should reject the null hypothesis H0.

<h3>What is the critical value?</h3>

We have a left-tailed test, as we are testing if the proportion is less than a value. Hence the critical value is z with a p-value equals to the significance level, hence z with a p-value of 0.05, hence z = -1.645.

<h3>What is the decision?</h3>

Considering the test statistic, for a left-tailed test, we have that:

Less than the critical value: Reject H0.

Equal or greater: Do not reject.

In this problem, z = -2.39 is less than -1.645, hence we should reject the null hypothesis H0.

More can be learned about the test of an hypothesis at brainly.com/question/13873630

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2 years ago