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4 years ago

Factor 2x2 - 9x - 11. (2x - 11)(x - 1) (2x + 11)(x - 1) (2x - 11)(x + 1)

Mathematics

2 answers:

Neporo4naja [7]4 years ago

8 0

Answer: (2x - 11)(x + 1) C.

Kryger [21]4 years ago

7 0

I hope this helps you

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3 years ago

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What is the smallest integer $n$ such that $5n + 3 > -10$?

Nataliya [291]

Answer:

-2

Step-by-step explanation:

5n+3= -10

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3 years ago

Rachel earned $42 for 3 1/2 hours at her job today. How much does Rachel earn per hour?

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3 years ago

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3 years ago

32% of college students say they use credit cards because of the rewards program. You randomly select 10 college students and a

Tems11 [23]

Answer:

a) $P(X=2)=(10C2)(0.32)^2 (1-0.32)^{10-2}=0.211$

b) $P(X> 2)=1-P(X\leq 2)=1-[0.0211+0.0995+0.211]=0.668$

c) $P(2 \leq x \leq 5)=0.211+0.264+0.218+0.123=0.816$

Step-by-step explanation:

1) Previous concepts

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

2) Solution to the problem

Let X the random variable of interest, on this case we now that:

$X \sim Binom(n=10, p=0.32)$