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Alex17521 [72]
3 years ago
12

Fill in the blanks please need soon

Mathematics
1 answer:
dimulka [17.4K]3 years ago
4 0
Nolur acil lütfen yalvarırım sana da
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A student had test score of 85, 72, 63, 91, and 94. Find the average of the test scores .
elena-s [515]
So just add all of them together and you get 405. Then divide by the amount of numbers there is which is 5. So 405 divided by 5. The answer is 81.
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Valentin [98]

Answer:

The standard deviation of the set is: 1.5

Step-by-step explanation:

The actual standard deviation is 1.58... but to 1 decimal place it's 1.5

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2(x-5)=4x+7<br> solve for x
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Answer:

x=-6

Step-by-step explanation:

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Simplify. <br><br> √25 - √40 ?<br> help please.
melomori [17]

Answer:

5-2√10

Step-by-step explanation:

5-2√10

break them down

√25=5

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What is the measure of WUX in Circle V ?
Alja [10]

Answer:

arc\ WUX=120^o

Step-by-step explanation:

<u><em>The complete question is:</em></u>

In circle V, angle WXZ measures 30°. Line segments WV, XV, ZV, and YV are radii of circle V. Circle V is shown. Line segments W V, X V, Z V, and Y V are radii. Lines are drawn from point W to point X and from point Z to point Y to form secants. Point U is on the circle between points W and X. What is the measure of Arc W U X in circle V?

The picture of the question in the attached figure

step 1

Find the measure of angle XWV

we know that

The triangle VWX is an isosceles triangle, because has two equal sides (VX=VW)

we have

m\angle WXZ=30^o\\m\angle WXV=m\angle WXZ

so

m\angle WXV=30^o

Remember that an isosceles triangle has two equal interior angles

so

step 2

Find the measure of angle WVX

Remember that the sum of the interior angles in any triangle must be equal to 180 degrees

so

m\angle\ WVX+m\angle XWV+m\angle WXV=180^o

substitute the given values

m\angle WVX+30^o+30^o=180^o\\m\angle WVX=180^o-60^o=120^o

step 3

Find the measure of arc WUX

we know that

arc\ WUX=m\angle WVX ----> by central angle

we have

m\angle WVX=120^o

therefore

arc\ WUX=120^o

4 0
3 years ago
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