3 years ago

Can some one help with this one question

Mathematics

2 answers:

jolli1 [7]3 years ago

5 0

the answer is D. day 4

Oliga [24]3 years ago

4 0

D. day 4
There is a spike in the graph indicating this.

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Complete the table.tell whether the relationship is proportional relationship.write an equation for it

Iteru [2.4K]

Ok so the first blank square would be 6, the second would be 48 and the third square would be 10.5 because you would multiply the top number or divide the bottom number by 4. Hope this helps. Happy Thanksgiving

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3 years ago

. Compute the required sample size given the required confidence in the sample results is 99.74% (Z score of 3). The level of al

Shtirlitz [24]

Answer:

900 sample size

Step-by-step explanation:

To determine the sample size for a proportion, the margin of error formula is used to determine this:

$E=Z_{\frac{\alpha}{2} }*\sqrt{\frac{\hat p \hat q}{{n} }$

$n=\hat p \hat q*(\frac{Z_{\frac{\alpha}{2} }}{E} )^2$

Where p is the proportion, E is the margin of error, n is the sample size, q = 1 - p, $Z_\frac{\alpha }{2}$ is the z score.

Since the proportion is not known, the sample size needed to guarantee the confidence interval and error is at p = 0.5 and q = 1 - p = 1 - 0.5 = 0.5

E = 5% = 0.05, $Z_\frac{\alpha }{2}$ = 3. Hence:

$n=0.5*0.5*(\frac{3}{0.05} )^2\\\\n = 900$

6 0

3 years ago

Ms. Skeen bought 3 pounds of candy for the Christmas party. There was a total of 147 pieces of candy. She wants to divide it amo

ohaa [14]

The 3 lbs of candy is irrelevant, so we can discard that. All you need to do is divide 147 by 26, which is 5.65 pieces of candy. Each student will get 5 pieces, with a few left over.

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3 years ago

pleassssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeehelp

kifflom [539]

U kno how to simplify

3 0

3 years ago

Read 2 more answers

Factor the expression 3x^2-15x

tester [92]

Factor out 3x
Answer: 3x(x - 5)

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3 years ago