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Scrat [10]
3 years ago
7

There are eight people competing in the track meet this weekend. They are competing for 1st, 2nd, and 3rd place ribbons. How man

y different ways can the winners be chosen? A. 67 B. 306 C. 336 D. 8,064
Mathematics
1 answer:
malfutka [58]3 years ago
5 0

Answer:

Option C

Step-by-step explanation:

Assuming P represents the number of outcomes, n the number of competitors and r the number of places to be awarded....

P = n! / ( n - r )!\\P = 8! / ( 8 - 3 )!\\P = 8! / 5!\\\\Algebra, P = 336 \\Solution = Option C

There are 336 different possible ways for the winners to be chosen.

<u><em>Hope that helps!</em></u>

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TIME REMAINING
11Alexandr11 [23.1K]

Answer:

<h2>YOUR CORRECT ANSWER IS(B.)</h2>

Step-by-step explanation:

8 0
3 years ago
PLEASE HELP ME! :) <br><br> A) A <br> B) B <br> C) C <br> D) D
zheka24 [161]
Pretty sure it's C ~~~~~~~~~~~~~~
4 0
3 years ago
the scientists collection that as granite that weighs 74 26/36 lbs, marble that weighs 63 16/34 lbs, and quartz that weighs 81 9
ipn [44]

Answer:

<h2> 6 1/2 lbs</h2>

Step-by-step explanation:

Given the weight of granite to be  74 26/36 lbs,

Weight of quartz is 81 9/40 lbs.

To know how much more quartz weight than the granite, we will take the difference between the weight of quartz and granite as shown.

Weight of quartz  - Weight of granite

= 81 9/40 - 74 26/36

= 3,249/40 - 2690/36

= (29, 241 - 26,900)/360

= 2,341/360

= 6 181/360

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quartz weighs approximately 6 1/2 lbs much more than granite

7 0
3 years ago
What number is 73% of 58?
lapo4ka [179]
73℅ of 58
= (73/100) × 58
= (73×58)/100
= 4234/100
= 42.34
7 0
4 years ago
Read 2 more answers
An educational psychologist wishes to know the mean number of words a third grader can read per minute. She wants to make an est
MrRa [10]

Answer:

<em> 85% level of the confidence interval is</em>

<em>(26.337, 26.662)</em>

Step-by-step explanation:

<u><em>Explanation</em></u>:-

Given the size of the sample 'n' = 295

Mean of the sample x⁻ = 26.5

The Standard deviation of the Population = 2.7

85% level of the confidence interval is determined by

(x^{-} - Z_{0.15} \frac{S.D}{\sqrt{n} } , x^{-} + Z_{0.15} \frac{S.D}{\sqrt{n} })

Critical value Z₀.₁₅ = 1.036

<em> 85% level of the confidence interval is determined by</em>

(x^{-} - Z_{0.15} \frac{S.D}{\sqrt{n} } , x^{-} + Z_{0.15} \frac{S.D}{\sqrt{n} })

(26.9 -1.036 \frac{2.7}{\sqrt{295} } , 26.5 + 1.036 \frac{2.7}{\sqrt{295} })

( 26.5 - 0.1628 , 26.5+0.1628)

(26.3372,26.6628)

7 0
3 years ago
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