All categories

2 years ago

Help please i will mark brainliest if the answer is correct

Mathematics

1 answer:

inysia [295]2 years ago

7 0

Answer:

-2

-1.5/7,-1)

-2

Step-by-step explanation:

Also your first answer is correct ma'am or sir! thank me later

You might be interested in

A) 15 B) 5 C) 12 D) 3

Contact [7]

By exterior angle of triangle:
17x+4+8x+1=80
x=3

3 0

3 years ago

Read 2 more answers

In the July 2007 issue, Consumer Reports examined the calorie content of two kinds of hot dogs: meat (usually a mixture of pork,

kifflom [539]

Answer:

Since we FAIL to reject the null hypothesis, then if we construct an interval of 95% of confidence, the 0 should be included, because on the test hypothesis we conclude that there would be no significant difference between the means of the two groups analyzed, and the results obtained on the hypothesis test needs to be consistent with the confidence interval.

Step-by-step explanation:

A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".

The null hypothesis is defined as "a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove".

The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".

$\bar x_{meat}=111.7$ represent the sample mean of calories for the meat hot dogs

$\bar x_{beef}=135.4$ represent the sample mean of calories for the beef hot dogs

The system of hypothesis on this case would be:

Null hypothesis: $\mu_{meat}-\mu_{beef}=0$

Alternative hypothesis: $\mu_{meat}-\mu_{beef}\neq 0$

On this case we have the p value obtained, after calculate the statistic and we got that $p_v =0.124$ if we select a 5% significance level $\alpha=0.05$ we see that $p_v >\alpha$ and on this case we can FAIL to rejec the null hypothesis, so there is not a significant difference between the mean of the two tpes of hot dogs analyzed at 5% of significance.

And since we FAIL to reject the null hypothesis, then if we construct an interval of 95% of confidence, the 0 should be included, because on the test hypothesis we conclude that there would be no significant difference between the means of the two groups analyzed, and the results obtained on the hypothesis test needs to be consistent with the confidence interval.

8 0

3 years ago

Question is on picture

Vlad1618 [11]

Answer:

The expression is half the value of (10 + 12)

Step-by-step explanation:

We see the top part is 10 + 12

The whole thing is a fraction and 2 is in the denominator

You divide your term by your denominator, and diving by 2 is the same as 1/2 if a term.

5 0

2 years ago

Read 2 more answers

If you divide 6! by 4! you are evaluating P(6, 4)

Aleks [24]

When you're evaluating P(n, k), you are essentially saying there are n objects and you will need to arrange them in k spaces.

This is essentially the same as: $^{6}P_4$ , which follows the formula:

$P(6, 4) = ^{6}P_4 = \frac{6!}{(6 - 4)!} = \frac{6!}{2!}$
If you're dividing by 4!, you are evaluating P(6, 2)

8 0

3 years ago

Samantha measured 40 1/2 inches. Over the next 5 1/2 years, she grew to a height of 57 inches. During the 5 1/2 years, what was

Alexxandr [17]

Answer:3 in. per yr

Step-by-step explanation:

Present height of Samantha is $40\frac{1}{2}=\frac{81}{2}$