All categories

3 years ago

Please help me thank you very much

Mathematics

1 answer:

Aleks [24]3 years ago

4 0

Question 1:

Match the letters/points that correspond to each other.
All choices start with "EAK", so that's our reference.
For the second triangle, we get AGK.
For the last triangle, we get EGA.

Question 2:

For this, just take the mean of 5 and 12.

$\frac{5+12}{2}$
$\frac{17}{2} =8 \frac{1}{2}$

Hope this helps! :)

You might be interested in

Which of these equations is in POINT-SLOPE form?

goblinko [34]

Y-3=23(x-4) hope this helps

7 0

3 years ago

Write a linear equation in slope intercept form passing through the point with the given slope.

aleksley [76]

Answer:

y = -2x + 3

Step-by-step explanation:

y = -2x + b

3 = -2(0) + b

3 = 0 + b

3 = b

4 0

3 years ago

The Institute of Education Sciences measures the high school dropout rate as the percentage of 16- through 24-year-olds who are

STALIN [3.7K]

Answer:

We conclude that the proportion of dropouts has changed from the historical value of 0.081.

Step-by-step explanation:

We are given that in 2009, the high school dropout rate was 8.1%. A polling company recently took a survey of 1000 people between the ages of 16 and 24 and found 6.5% of them are high school dropouts.

The polling company would like to determine whether the proportion of dropouts has changed from the historical value of 0.081.

Let p = proportion of school dropouts rate

SO, Null Hypothesis, $H_0$ : p = 0.081 {means that the proportion of dropouts has not changed from the historical value of 0.081}

Alternate Hypothesis, $H_A$ : p $\neq$ 0.081 {means that the proportion of dropouts has changed from the historical value of 0.081}

The test statistics that will be used here is One-sample z proportion statistics;

T.S. = $\frac{\hat p-p}{{\sqrt{\frac{\hat p(1-\hat p)}{n} } } } }$ ~ N(0,1)

where, $\hat p$ = sample proportion of high school dropout rate = 6.5%

n = sample of people = 1000

So, test statistics = $\frac{0.065-0.081}{{\sqrt{\frac{0.065(1-0.065)}{1000} } } } }$

= -2.05

Also, P-value is given by the following formula;

P-value = P(Z < -2.05) = 1 - P(Z $\leq$ 2.05)

= 1 - 0.97982 = 0.0202 or 2.02%

Now at 5% significance level, the z table gives critical values between -1.96 and 1.96 for two-tailed test. Since our test statistics does not lies within the range of critical values of z so we have sufficient evidence to reject our null hypothesis as it will fall in the rejection region.

Therefore, we conclude that the proportion of dropouts has changed from the historical value of 0.081.

7 0

3 years ago

HELPPPPPP MEEEEE!!!!!!

Kazeer [188]

Answer:

It's a

Step-by-step explanation:

The speed goes up, and so does the time

then the speed stays the same but the time keeps going

then the time keeps going and the speed goes down

3 0

3 years ago

A student is applying to Harvard and Dartmouth. If the student is accepted at Dartmouth, the probability of being accepted at Ha

adell [148]

I made a probability tree. Pls. see attachment.

Based on the probability tree I made, below are the probabilities

Probability of a student accepted at both Dartmouth and Harvard is:
50% x 40% = 20%

Probability of a student accepted at Dartmouth but not Harvard is:
50% x 60% = 30%

Probability of a student not accepted at Dartmouth but accepted in Harvard is:
50% x 20% = 10%

Probability of a student not accepted in both schools is:
50% x 80% = 40%

As you can see, these probabilities total 100%

6 0

4 years ago