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kirill [66]
3 years ago
6

Would this expression be 49+R?

Mathematics
1 answer:
Dmitry [639]3 years ago
4 0

Answer:

Yes

Step-by-step explanation:

It would be r+49 since Kevin has 49 more.

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Hey can you please help me posted picture of question
larisa [96]
(5x - 2)^2 = 15

Square root both sides:
5x - 2 = \pm\sqrt{15}

Add 2 to both sides:
5x = pm\sqrt{15} + 2

Divide both sides by 5:
x =  \dfrac{ \pm\sqrt{15} + 2}{5}

Answers:
x = \dfrac{ \sqrt{15} + 2}{5} \ or \ \dfrac{ - \sqrt{15} + 2}{5}

Answer: (B) and (E)

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Katrina wants to estimate the proportion of adults who read at least 10 books last year. to do​ so, she obtains a simple random
Vaselesa [24]
E=Z*sqrt (p(1-p)/N), where E= error margin, p=proportion, N=sample size

Katrina's margin error at 85% confidence interval: E=1.96*sqrt (p(1-p)/100) = 0.196 sqrt (1(1-p))

Mathew's margin error at 99% confidence interval: E= 2.58*sqrt (p(1-p)/400) = 0.129 sqrt (p(1-p))

Since both obtained same estimate of proportion (that is, value of p), it can be seen that Mathew's estimate will have a small error (That is, 0.129 is smaller than 0.196). This can be attributed to larger sample size although a wider confidence (99%) interval was considered.
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3 years ago
(2,2) (2,-4) (-5,-4)(-5,2)
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Answer:

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Step-by-step explanation:

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Write an expression using a variable that shows how much 3 pairs of jeans will cost if u don't know the price of jeans . assume
Fofino [41]
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4 years ago
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asambeis [7]

Answer:

4

Step-by-step explanation:

If two variables are proportional then

y\propto x

y=kx    ...(i)

where, k is constant of proportionality.

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where,

s = number of cups of seltzer.

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On comparing (i) and (ii), we get

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Constant of proportionality: k=4

Therefore, the constant of proportionality is 4.

8 0
3 years ago
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