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Alexeev081 [22]
3 years ago
9

Springdale Junior High has two students, Ashley and Taylor, that qualified for the regional track meet in the 800 meter dash. Th

e final race has only four spots available. Both Ashley and Taylor earned a spot in the final.
Mathematics
1 answer:
Svetach [21]3 years ago
4 0
I assume you want to know a permutation about how many ways they can be in the final set-up.

Order matters, which is why this is a permutation.

Formula: P(n, r) = \frac{n!}{(n-r)!}

where the permutation is n^{P} k, with P for permutation.

Plug in:

4!/(4-2)!
4!/2!
(1 x 2 x 3 x 4)/1 x 2
(3x4)/1
= 12

12 ways.
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AleksandrR [38]

the equation is 2x-1 right so all you have to do is plug and go

2x-1

2x10-1

20-1

19

so your answer would be A)19

5 0
2 years ago
An expert shot bits the target 95% of the time. What are the probabilities that he will miss the target: at least one time durin
Mkey [24]
If he hits the target 95% of the time, then you could say that he has a probability of 0.95, or 95% of hitting the target. Let p = the probability of hitting the target or p = 0.95. So you are interested that he misses the target at least once - this could be thought of as not getting a perfect score. So to get a perfect score, it is 0.95 for each target -- 0.95^15 for 15 targets is 0.464. Thus to miss at least one target he needs to NOT have a perfect score -- 1 - 0.464 = 0.536, or 53.6% of happening. Enjoy
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3 years ago
One year, the population of a city was 225,000. Several years later it was 236,250. Find the percent increase.
vampirchik [111]

Based on the information given the percentage increase is 5%.

<h3>Percentage increase</h3>

Using this formula

Percentage increase=Population several years later-Population for year/Population for one year×100%

Let plug in the formula

Percentage increase=236,360-225,000/225,000×100

Percentage increase=5%

Inconclusion  the percentage increase is 5%.

Learn more about percentage increase here:brainly.com/question/11360390

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2 years ago
Who else is a member of the church of Latter Day Saints
jolli1 [7]

Answer:

Step-by-step explanation:

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