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3 years ago

Plz help!!! It's on elimination its Algebra 1

Mathematics

1 answer:

koban [17]3 years ago

7 0

2x-y=0 Y=x-1 2x-x-1=0 x-1=0

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Thirteen people on a softball team show up for a game. a)How many ways are there to choose 10 players to take the field? b)How m

marishachu [46]

Answer:

a) 286

b) 1,037,836,800

c) 285

Step-by-step explanation:

a) Since order is not important, the total possible number of ways to choose 10 players out of 13 is the following combination:

$C(13,10)=\frac{13!}{(13-10)!10! } \\C(13,10)=\frac{13*12*11*10!}{(3*2*1)10! }\\C(13,10) = 286$

b) The total number of possibilities to assign positions by the selecting 10 players is the permutation of 13 players for 10 positions:

$P(13,10) = \frac{13!}{(13-10)!}\\P(13,10) = 13*12*11*10*9*8*7*6*5*4\\P(13,10) =1,037,836,800$

c) The number of ways to pick 10 players including at least one woman is equal to the total number of ways to pick 10 players (found in item a) minus the the number of ways to pick 10 players without picking a single woman.

Since there 10 male players for 10 positions, there is only one possible way to pick a team without women, therefore:

$P=286-1 =285$

6 0

2 years ago

A truck’s position relative to a car’s position is -60 feet. The car and the truck move in the same direction, but the car moves

ZanzabumX [31]

Answer:

I think its false

Step-by-step explanation:

the car went 8 second faster

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2 years ago

If points of a region represent equally-likely outcomes, then you can find probabilities by comparing areas.... T/F?

Anarel [89]

<span>If points of a region represent equally-likely outcomes, then you can find probabilities by comparing areas would be true.</span>

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2 years ago

The Orchard Cafe has found that about 3% of the diners who make reservations don't show up. If 83 reservations have been made, h

daser333 [38]

Answer:

$\mu = 80.51\\\sigma = 1.56$

Step-by-step explanation:

We are given the following information in the question:

Percentage of of the diners who make reservations don't show up = 3%

Number of reservations = 83

Thus, we are given a binomial distribution with n = 83 and p = 0.97

$X\sim \text{ Binom}(p = 0.97, n = 83)$

$\mu = np = (83)(0.97) = 80.51$

Around 81 people can be expected to show up.

$\sigma = \sqrt{np(1-p)} = \sqrt{(83)(0.97)(1-0.97)} = 1.5541 \approx 1.56$

The standard deviation of this distribution is 1.56

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2 years ago

In a radio station contest, the first prize is $2,000 and the second prize is $500. The probability of winning the first prize i

lana [24]

I think the answer is $14

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2 years ago

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