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AleksandrR [38]
3 years ago
11

+\sqrt{63" align="absmiddle" class="latex-formula"> pls show work
Mathematics
1 answer:
mezya [45]3 years ago
8 0

Answer:7√3 + 3√7

Step-by-step explanation:

7√3 + √63

=> 7√3 + √(7×9)

=> 7√3 + (√7 × √9)

=> 7√3 + 3√7

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Write the slope-intercept form of the equation of each line. 9x-7y=-7
makkiz [27]
Slope intercept form is y = mx + b.....so lets solve for y

9x - 7y = -7 .....subtract 9x from both sides
-7y = -9x - 7...now we divide both sides by -7
y = 9/7x + 1 <==
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3 years ago
Find the missing angle.
notsponge [240]

Answer:

y=51, z and x= 129

Step-by-step explanation:

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What is the value of y in the equation 4x +3 y= 23 when x=2 , x=6
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Step-by-step explanation:

x = 2:

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8 0
3 years ago
find all polar coordinates of point p where p = (5, -pi/6) (5, -pi/6 2nπ) or (-5, -pi/6 2nπ) (5, -pi/6 2nπ) or (-5, -pi/6 (2n 1)
ZanzabumX [31]
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6 0
4 years ago
Suppose an article reported that 14% of unmarried couples in the United States are mixed racially or ethnically. Consider the po
Anvisha [2.4K]

Answer: \mu_{\hat{p}}=0.14 and \sigma_{\hat{p}}=0.0347

Step-by-step explanation:

In sampling distribution of \hat{p}.

The mean and standard deviation of the sampling distribution of p is given by :-

\mu_{\hat{p}}=p

\sigma_{\hat{p}}=\sqrt{\dfrac{p(1-p)}{n}}  , where p= population proportion and n= sample size.

Let p be the population proportion of unmarried couples in the United States are mixed racially or ethnically.

As per given , we have

n = 100

p= 14% =0.14

Then, the mean and standard deviation of the sampling distribution of p will be :

\mu_{\hat{p}}=0.14

\sigma_{\hat{p}}=\sqrt{\dfrac{0.14(1-0.14)}{100}}

\sigma_{\hat{p}}=\sqrt{\dfrac{0.14(0.86)}{100}}

\sigma_{\hat{p}}=\sqrt{\dfrac{0.1204}{100}}

\sigma_{\hat{p}}=\sqrt{0.001204}

\sigma_{\hat{p}}=0.0346987031458\approx0.0347

Hence, the required answer : \mu_{\hat{p}}=0.14 and \sigma_{\hat{p}}=0.0347

8 0
3 years ago
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