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Readme [11.4K]
3 years ago
15

Please help me solve this asap!​

Mathematics
1 answer:
sveticcg [70]3 years ago
3 0
The would be answer is A
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Efectuati calculele:
NNADVOKAT [17]
\sqrt{(5 - 1)^{2}} +  \sqrt{20}

\sqrt{4^{2}} +  \sqrt{4 * 5}

\sqrt{16} +  \sqrt{4} \sqrt{5} 


4 + 2 \sqrt{5} 


4\sqrt{5} + 2 \sqrt{5} 


6 \sqrt{5}


\sqrt{(10 - 3)^{2}} +  \sqrt{20 * 18}

\sqrt{7^{2}}  +  \sqrt{4 * 9 * 5 * 2}

\sqrt{49} +  \sqrt{36 * 10}

7 +  \sqrt{36}\sqrt{10}

7 + 6\sqrt{10}

7\sqrt{10} + 6\sqrt{10}

13\sqrt{10}


\sqrt[3]{(3 + 1)^{2}} -  \sqrt{(3 - 2)x^{2}

\sqrt[3]{4^{2}} -  \sqrt{x^{2}

\sqrt[3]{16} - x[tex] \\[tex] \sqrt[3]{8 * 2} - x

\sqrt[3]{8} \sqrt[3]{2} - x


2\sqrt[3]{2} - x




8 0
3 years ago
PLEASE PEOPLE , I NEED HELP CAN YOU HELP ME PLEASE :,)
Tasya [4]

Step-by-step explanation:

= (1 + 5z)(-4)

= (1 + 5z) × (-4)

= 1.(-4) + 5z. (-4)

= -4 - 20z

3 0
2 years ago
Bones Brothers & Associates prepare individual tax returns. Over prior years, Bones Brothers have maintained careful records
madreJ [45]

Answer:

For this case we have the following info related to the time to prepare a return

\mu =90 , \sigma =14

And we select a sample size =49>30 and we are interested in determine the standard deviation for the sample mean. From the central limit theorem we know that the distribution for the sample mean \bar X is given by:

\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})

And the standard deviation would be:

\sigma_{\bar X} =\frac{14}{\sqrt{49}}= 2

And the best answer would be

b. 2 minutes

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".  

The central limit theorem states that "if we have a population with mean μ and standard deviation σ and take sufficiently large random samples from the population with replacement, then the distribution of the sample means will be approximately normally distributed. This will hold true regardless of whether the source population is normal or skewed, provided the sample size is sufficiently large".

Solution to the problem

For this case we have the following info related to the time to prepare a return

\mu =90 , \sigma =14

And we select a sample size =49>30 and we are interested in determine the standard deviation for the sample mean. From the central limit theorem we know that the distribution for the sample mean \bar X is given by:

\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})

And the standard deviation would be:

\sigma_{\bar X} =\frac{14}{\sqrt{49}}= 2

And the best answer would be

b. 2 minutes

3 0
3 years ago
Please help me with parts A, B, and C.
leonid [27]

Answer:

  (a) scalene, see attachment

  (b) acute, see attachment

  (c) correct; isosceles

Step-by-step explanation:

(a) The sides of the triangle all have different lengths, so the triangle is scalene. Differences in coordinates between the points of the triangle are (6, 2), (5, 2), and (4, 1), so no two distances between these points can be the same.

__

(b) The angle opposite the longest side is clearly an acute angle, so the triangle is an acute triangle.

__

(c) Miles and Brad live on the same north/south line. Jose lives at a distance that is halfway between those houses in the north-south direction. Hence the distance to Miles' and Brad's houses must be the same from Jose's house. That means the triangle connecting Miles', Brad's, and Jose's houses will be an isosceles triangle.

4 0
3 years ago
When solving problems with units we sometimes ____ to get the units the same.
laiz [17]
Convert is your answer .-.
4 0
3 years ago
Read 2 more answers
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