EXTRA POINTS ASAP

Mathematics

1 answer:

Zigmanuir [339]3 years ago

6 0

Answer:

This is geometric sequence and the common ratio is equal to ⅓.

Step-by-step explanation:

A geometric sequence has a common ratio which is gotten when we divide a term by the subsequent term in a sequence. The common difference would be the same for every two consecutive terms we divide by each other.

Thus:

8/64 = ⅛

1/8 = ⅛

Common ratio = ⅛

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kiruha [24]

Answer:

Step-by-step explanation:

$40:15 gallons

:3 gallons

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15÷3= 5

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3 years ago

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Triss [41]

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4 years ago

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,

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