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frozen [14]
3 years ago
14

Find the measure of 4 90° 26° 116° 64°

Mathematics
1 answer:
miv72 [106K]3 years ago
6 0
The answer is 90 degrees
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student randomly receive 1 of 4 versions(A, B, C, D) of a math test. What is the probability that at least 3 of the 5 student te
alexdok [17]

Answer:

1.2%

Step-by-step explanation:

We are given that the students receive different versions of the math namely A, B, C and D.

So, the probability that a student receives version A = \frac{1}{4}.

Thus, the probability that the student does not receive version A = 1-\frac{1}{4} = \frac{3}{4}.

So, the possibilities that at-least 3 out of 5 students receive version A are,

1) 3 receives version A and 2 does not receive version A

2) 4 receives version A and 1 does not receive version A

3) All 5 students receive version A

Then the probability that at-least 3 out of 5 students receive version A is given by,

\frac{1}{4}\times \frac{1}{4}\times \frac{1}{4}\times \frac{3}{4}\times \frac{3}{4}+\frac{1}{4}\times \frac{1}{4}\times \frac{1}{4}\times \frac{1}{4}\times \frac{3}{4}+\frac{1}{4}\times \frac{1}{4}\times \frac{1}{4}\times \frac{1}{4}\times \frac{1}{4}

= (\frac{1}{4})^3\times (\frac{3}{4})^2+(\frac{1}{4})^4\times (\frac{3}{4})+(\frac{1}{4})^5

= (\frac{1}{4})^3\times (\frac{3}{4})[\frac{3}{4}+\frac{1}{4}+(\frac{1}{4})^2]

= (\frac{3}{4^4})[1+\frac{1}{16}]

= (\frac{3}{256})[\frac{17}{16}]

= 0.01171875 × 1.0625

= 0.01245

Thus, the probability that at least 3 out of 5 students receive version A is 0.0124

So, in percent the probability is 0.0124 × 100 = 1.24%

To the nearest tenth, the required probability is 1.2%.

4 0
3 years ago
HELP ME PLS!!!<br> Solve for x to the nearest tenth.
DerKrebs [107]

Answer:

6.4

Step-by-step explanation:

Box like a fish Box like a fish Nemo in my box, I found Nemo, Litteraly free, freer than a costco sample, public restroom, and dollor off cupon at Dollor store, Dog water

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3 years ago
How to slove 81.45-1000 in a easy way to slove step by step
Butoxors [25]

Answer:

-918.55

Step-by-step explanation:


4 0
3 years ago
Read 2 more answers
Values greater then 1653
krek1111 [17]

Answer:

1654,1655,1656,1657,1658,1659,1660

Step-by-step explanation:

They all come after the value of 1653

7 0
3 years ago
Point Mis the midpoint of AB. AM = 3x + 3, and AB= 83 – 6.
Ber [7]

Answer:

AM= Half of AB

or, 3x+3=(8x-6)/2

or, 6x+6=8x-6

or, 2x=12

Therefore,x=6

so,AM=3*6+3=21

So the units is 21

4 0
3 years ago
Read 2 more answers
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