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3 years ago

Can someone please help you don't have to explain how you got the answer

Mathematics

2 answers:

bazaltina [42]3 years ago

8 0

Answer:

-3a+5b+7 -2x+7y+13 -3m-4 24+7a 5a+10 3m+3 6s+4

Step-by-step explanation:

natta225 [31]3 years ago

5 0

Answer:

-3a+5b+7 -2x+7y+13 -3m-4 24+7a 5a+10 3m+3 6s+4

Step-by-step explanation:

Combine like terms and use distributive property.

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Consider the null hypothesis, H0: µ = 4,000, at the 1% level of significance. If the z-test statistic is calculated to be 6.00,

kow [346]

Answer:

Option B) Reject null hypothesis

Step-by-step explanation:

We are given the following in the question:

We are given the null hypothesis:

$H_0 = 4,000$

$\alpha = 0.01$

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Two tailed z-test

Now, $z_{critical} \text{ at 0.01 level of significance } = \pm 2.58$

Since,

The calculated z-statistic does not lie in the acceptance region, we fail to accept and reject the null hypothesis.

Left-tailed z-test

Now, $z_{critical} \text{ at 0.01 level of significance } = -2.58$

Since,

$z_{stat} > z_{critical}$

We fail to accept and reject the null hypothesis.

Right-tailed z-test

Now, $z_{critical} \text{ at 0.01 level of significance } = 2.58$

Since,

$z_{stat} > z_{critical}$

We fail to accept and reject the null hypothesis.

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3 years ago

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Irina18 [472]

Answer:

Step-by-step explanation:$500.00 20-10%

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3 years ago

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romanna [79]

Answer:

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Step-by-step explanation:

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Mr.Carter owned a ranch with 7 1/4 acres. Last year ,he bought 3 1/5 acres of land from his neighbor. Then he sold 2 1/4 acres.

almond37 [142]

Answer:

B - 8 1/5 acres

Step-by-step explanation:

1. Subtract 7 1/4 - 2 1/14 (what he sold) = 5 acres

2. Add 5 + 3 1/5 (what he bought) = 8 1/5 acres

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