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3 years ago

HELP HElp help HELp HElp please fast give 10 points

Mathematics

2 answers:

Blizzard [7]3 years ago

4 0

Answer:

y = 2x + 3

Step-by-step explanation:

its quizzizz you need fast

kvasek [131]3 years ago

3 0

Use the formula y=Mx + B
The m = slope always so find the slope in the graph then match the answer

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7) 11r - 12r

Alexeev081 [22]

7. -r

8. 11v

9. -19x

10. 6p

11. 16n

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13. 15r

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3 years ago

−126 = 14k MAKE SURE TO SHOW YOUR WORK PLEASE HURRY

vovangra [49]

Answer:

k = -9

Step-by-step explanation:

When a number (coefficient) is next to a letter (variable) that means you multiply. To solve you would to the opposite, which is to divide.

-126 ÷ 14 = -9

So -9 is equal to k.

Hope that helps and have a great day!

3 0

4 years ago

What is the frequency of this wave? 1 2 3 4

fiasKO [112]

This answer was 2 on this test and i know this because i took the test and i got it right and who ever pick 3 that's not the correct answer....................

3 0

3 years ago

Read 2 more answers

Is -1/4 bigger or smaller than -1.4

spin [16.1K]

Answer: Bigger

Step-by-step explanation: If you put -1/4 in decimal form you get -.25. If these numbers were positive, 1.4 would obviously be bigger than .25, but since these numbers are negative, -.25 would be bigger than -1.4.

5 0

3 years ago

Read 2 more answers

In the United States, 36 percent of the people have a blood type that is A positive. From a random sample of 150 people from Nor

Flauer [41]

Answer:

The standard deviation used to calculate the test statistic for the one-sample z-test is 0.04.

Step-by-step explanation:

A single proportion z-test can be performed to determine whether the proportion of people in Norway with a blood type of A positive is different from that in the United States.

It is provided that the percentage of people in the US with blood type A positive is, p = 36%.

A random sample of n = 150 people from Norway are selected to check the above claim.

The hypothesis can be defined as:

H₀: The proportion of people in Norway with a blood type of A positive is same as that in the United States, i.e. p = 0.36.

Hₐ: The proportion of people in Norway with a blood type of A positive is different from that in the United States, i.e. p ≠ 0.36.

The test statistic for the the hypothesis testing is:

$z=\frac{\hat p-\mu_{\hat p}}{\sigma_{\hat p}}$

The mean of the sample proportion is:

$\mu_{\hat p}=p$

The standard deviation of sample proportion is:

$\sigma_{\hat p}=\sqrt{\frac{p(1-p)}{n}}$

Compute the standard deviation value as follows:

$\sigma_{\hat p}=\sqrt{\frac{p(1-p)}{n}}$

$=\sqrt{\frac{0.36(1-0.36)}{150}}$

$=0.03919184\\\approx0.04$

Thus, the standard deviation used to calculate the test statistic for the one-sample z-test is 0.04.

5 0

3 years ago