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Veronika [31]
3 years ago
5

Did Cherise use algebra tiles to correctly represent the product of (x – 2)(x – 3)?

Mathematics
2 answers:
igomit [66]3 years ago
4 0

Answer:

B.No, she did not multiply the negative integer tiles by the other negative integer tiles correctly.

Step-by-step explanation:

When multiplying these binomials, we multiply -2 by x and -2 by -3.  In the diagram, we have negative x tiles, which is correct; but we have negative unit tiles.  When we multiply a negative by a negative, we should get a positive result.

Temka [501]3 years ago
3 0
Which property of multiplication is shown ?
11 × 1
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A football team has a probability of .75 of winning when playing any of the other four teams in its conference. If the games are
Alexeev081 [22]

Answer:

0.3164 = 31.64% probability the team wins all its conference games

Step-by-step explanation:

For each conference game, there are only two possible outcomes. Either the team wins it, or they lose. The probability of winning a game is independent of any other game. 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.

A football team has a probability of .75 of winning when playing any of the other four teams in its conference.

The probability means that p = 0.75, and four games means that n = 4

If the games are independent, what is the probability the team wins all its conference games?

This is P(X = 4). So

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

P(X = 4) = C_{4,4}.(0.75)^{4}.(0.25)^{0} = 0.3164

0.3164 = 31.64% probability the team wins all its conference games

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3 years ago
Skyler goes to a school which has 1000 students in it. She asks 40 random students whether they like the new 8.30am start to the
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Answer:

100/40=25

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so 750 students would dislike the new starting time.

I really hope this was correct and helpful. I tried my best.

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