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3 years ago

11

there are 7 students on a committee. To decide which 3 of these students will attend a conference, 3 names are chosen at random

by pulling names one at a time from a hate. What is the probability that sarah jamal and mai are chosen in any order

1 answer:

rosijanka [135]3 years ago

4 0

If it’s all 3 being chosen it’s 1/7 X 1/7 X 1/7 which is .002915 which would be a .29%

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The range of the function f(k) = k2 + 2k + 1 is {25, 64}. What is the function’s domain?

s344n2d4d5 [400]

{k^2 + 2k + 1 = 25, k^2 + 2k + 1 = 64}
{k^2 + 2k - 24 = 0, k^2 + 2k - 63 = 0}
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3 years ago

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Step-by-step explanation:

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2 years ago

Timmy estimated he would spend $9 at the candy store. He went a little over-budget and spent $12. What was the percent error?

kap26 [50]

<h2>Answer :</h2>

Error (e) = 12 - 9 = $ 3

assumed value (a) = $ 9

$\boxed{ \mathrm{ \% \: error = \dfrac{error}{assumed \: value} \times 100}}$

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2 years ago

Two similar cylinders have heights of 75 cm & 25 cm. What is the ratio of the VOLUME of the larger cylinder to the VOLUME of

castortr0y [4]

I'm not going to say I'm 100% correct.

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2 years ago

The first term of geometric sequence is 7 and the common ratio is -2. Find the 9th term.

kobusy [5.1K]

$a_{1}$ = 7.

Ratio means multiply/divide.
To get the next number, multiply number by common ratio.
To get a previous number, divide by common ratio.

Since we want the next number...
2nd term: 7 x -2 = -14
3rd term: -14 x -2 = 28
4th term: 28 x -2 = -56
5th term: -56 x -2 = 112

Keep going until 9th term!

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2 years ago