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Free_Kalibri [48]
1 year ago
13

Each package holds 72 markers:

Mathematics
1 answer:
enyata [817]1 year ago
6 0

Answer:

288

Step-by-step explanation:

72×4=288

she has 72 in each package so you multiply them

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Water comes out of a pipe at a rate of 30 gallons per minute.
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Answer:

90

Step-by-step explanation:

30x3=90

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What is the slope of (8,10), (-7,14)
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Reduce the expression, if possible, by cancelling the common factors.

Exact Form:
−4/15

Decimal Form:
−0.26

Basically do
y2-y1 divided by x2-x1
14-10 divided by -7-8
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The selling price for a classic car is $16000 which is. $1000 more than three times its original price. What was the original pr
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1) Subtract 1,000 from 16,000.
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2 years ago
BlueSky Air has the best on-time arrival rate with 80% of its flights arriving on time. A test is conducted by randomly selectin
Strike441 [17]

Answer:

0.211 = 21.1% probability that 2 flights of BlueSky Air arrive late

Step-by-step explanation:

For each flight, there are only two possible outcomes. Either they arrive late, or they do not. The probability of a flight arriving late is independent of any other flight. This means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

BlueSky Air has the best on-time arrival rate with 80% of its flights arriving on time.

This means that 100 - 80 = 20% are late, which means that p = 0.2

Randomly selecting 16 BlueSky Air flights

This means that n = 16

What is the probability that 2 flights of BlueSky Air arrive late?

This is P(X = 2).

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 2) = C_{16,2}.(0.2)^{2}.(0.8)^{14} = 0.211

0.211 = 21.1% probability that 2 flights of BlueSky Air arrive late

6 0
3 years ago
I’m so lost guys lol send help
PtichkaEL [24]

Answer:

(x−10)(x^2+10x+100)

Explanation:

I talked to my partner, you can call them "G00gle"

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