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3 years ago

12

What’s the answer to my problem

1 answer:

AlexFokin [52]3 years ago

4 0

Answer:

EF, where E is at (1, 9) and F is at (2, 5)

Step-by-step explanation:

Slope = rise/run or y/x. In a coordinate, a point on a graph is represented as (x,y). When the slope is -4 (or -4/1), this means the y value will decrease (as it is negative) by 4 units, while the x value increases (as it is positive) by 1 unit. The line EF demonstrates the values (1, 9) and (2, 5). The difference between them is (1, -4) in (x, y) form.

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Sam is building a dog kennel. He wants the kennel to be 8 ft long and 4 ft wide. If a scale drawing of the kennels length is 2 i

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Answer:

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Step-by-step explanation:

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3 years ago

Select all the expressions that hace a value of 28:

laila [671]

Answer:

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Step-by-step explanation:

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2 years ago

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3 years ago

Read 2 more answers

If you wanted to make the graph of y = 8x - 10 less steep, as well as shift the

azamat

Answer:

4x-15=y

Step-by-step explanation:

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The y intercept shifted downward means anything (-10>b) can be plausible for b.

3 0

3 years ago

The average expenditure on Valentine's Day was expected to be $100.89 (USA Today, February 13, 2006). Do male and female consume

AfilCa [17]

Answer:

Yes. The male and female consumers differ in the amounts they spend.

Step-by-step explanation:

We can express the null and alternative hypothesis as:

$H_0: \mu_m=\mu_w\\\\H_1: \mu_m\neq\mu_w$

It is assumed a significance level of 0.05.

The standard deviation of the difference of means is calculated as:

$s=\sqrt{\frac{s_m^2}{n_m} +\frac{s_w^2}{n_w} } =\sqrt{\frac{35^2}{40} +\frac{20^2}{30} } =\sqrt{30.625+13.333} =\sqrt{43.958} =6.63$

The test statistic is

$t=\frac{(M_m-M_w)-0}{s}=\frac{135.67-68.64}{6.63}=10.11$

The degrees of freedom are:

$df=n_1+n_2-2=40+30-2=68$

The P-value for t=10.11 is P=0, so it is smaller than the significance level. The null hypothesis is rejected.

We can conclude that male and female consumers differ in the amounts they spend.

5 0

3 years ago