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4 years ago

5

HAVING A BAD DAY PLEASEEEE HELPPPP

2 answers:

ivann1987 [24]4 years ago

5 0

Answer:

12/s

Step-by-step explanation:

Alexxx [7]4 years ago

4 0

Answer:

the answer is 48

Step-by-step explanation:

you take the 12 and multiply it by s then you add the distance to the office then multiply those together

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450 high school freshmen were randomly selected for a national survey. Among survey participants, the mean grade-point average (

umka21 [38]

Answer:

The margin of error is of 0.01.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1 - 0.7}{2} = 0.15$

Now, we have to find z in the Z-table as such z has a p-value of $1 - \alpha$ .

That is z with a pvalue of $1 - 0.15 = 0.85$ , so Z = 1.037.

The margin of error is of:

$M = z\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

Standard deviation was 0.21.

This means that $\sigma = 0.21$

Sample of 450:

This means that $n = 450$

What is the margin of error, assuming a 70% confidence level, to the nearest hundredth?

$M = z\frac{\sigma}{\sqrt{n}}$

$M = 1.037\frac{0.21}{\sqrt{450}}$

$M = 0.01$

The margin of error is of 0.01.

4 0

3 years ago

PERSON 1 IS BOWLING WITH HIS FRIENDS IT COSTS $12DOLLERS FOR 10 PAIRS OF SHOES 25 PEOPLE WERE BOWLING HOW MUCH WOULD IT COST PER

Irina18 [472]

The answer is $300 because you have to multiply 25x12. 10x25=250 and 2x25=50. 250+50=300.

3 0

3 years ago

X<br>81** *34*=246<br><img src="https://tex.z-dn.net/?f=81x%20%2B%201%20%2B%203%7B4x%20%7D%20%3D%20246" id="TexFormula1" title="

anzhelika [568]

Answer:

$x=\frac{1}{4}$

Step-by-step explanation:

$81^{x+1}+3^{4x}=246$

$81=3^4$

Rewrite equation: $3^{4\left(x+1\right)}+3^{4x}=246$

$3^{4\left(x+1\right)}=3^{4x}\times 3^4$

$3^{4x}\times 3^4+3^{4x}=246$

Factor out $3^{4x}$ :

$3^{4x}\left(3^4+1\right)=246$

Divide both sides by $(3^4+1)$ :

$\frac{3^{4x}\left(3^4+1\right)}{3^4+1}=\frac{246}{3^4+1}$

$3^{4x}=\frac{246}{3^4+1}$

$3^{4x}=\frac{246}{82}$

$3^{4x}=3$

Anything to the power of 1 is itself. Hence,

$4x=1\\$

$x=\frac{1}{4}$

3 0

4 years ago

Name this triangle by its angles and sides.

MatroZZZ [7]

Answer:

I would say Right, Isosceles.

Step-by-step explanation:

4 0

3 years ago

A high school track coach wanted to test whether giving the students an energy drink could affect performance during the 100 met

kondaur [170]

The inference that can be made about the results is that; energy drinks enhances performance during 100 meters race.

<h3>How to find inference from a given data?</h3>

From the given table and histogram, we can see that;

Group 1 average race time = 10.8

Group 2 average race time = 11.6

Thus, since group 1 drank energy drink and had faster times than group 2 without energy drinks, the inference that can be made about the results is that energy drinks has enhancing performance during 100 meters race.

Read more about Inference at; brainly.com/question/1611703

#SPJ1

4 0

3 years ago