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3 years ago

2+5+2) = 6(+2)

Mathematics

1 answer:

Sergio039 [100]3 years ago

5 0

cuatro no? porque osea tiene q

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Select the correct answer.<br> Simplify.<br> (m3)6 ./.m 18

Phantasy [73]

The Answer is B, 1

X^3^6 equals X^18 which equals the other x^18, which means they equal eachother.

3 0

3 years ago

in a certain population, 11% of people are left-handed. Suppose that you plan to randomly select 100 people and ask each person

Assoli18 [71]

Answer:

c. A and C

Step-by-step explanation:

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".

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

$X \sim Binom(n=100, p=0.11)$

The probability mass function for the Binomial distribution is given as:

$P(X)=(nCx)(p)^x (1-p)^{n-x}$

Where (nCx) means combinatory and it's given by this formula:

$nCx=\frac{n!}{(n-x)! x!}$

We need to check the conditions in order to use the normal approximation.

$np=100*0.11=11 > 10 \geq 10$

$n(1-p)=100*(1-0.11)=99 \geq 10$

So we see that we satisfy the conditions and then we can apply the approximation.

If we appply the approximation the new mean and standard deviation are:

$E(X)=np=100*0.11=11$

$\sigma=\sqrt{np(1-p)}=\sqrt{100*0.11(1-0.11)}=3.129$

Part A

We want this probability:

$P(X \geq 12) = 1-P(X$

The z score is defined as

$Z=\frac{x-\mu}{\sigma}$ .

$P(X \geq 12) = 1-P(X$

Part B

P(X>12) = 1-P(X\leq 12) = 1-P(Z< \frac{12-11}{3.129})=1-0.625=0.375[/tex]

Part C

$P(10\leq X \leq 14) = P(X$

The z score is defined as

$Z=\frac{x-\mu}{\sigma}$ .

$P(10 \leq X \leq 14) =P(Z< \frac{14-11}{3.129}) -P(Z< \frac{10-11}{3.129})=P(Z$

So then the best option is : c. A and C

8 0

4 years ago

Help plz I will give brainliest if it's right

liq [111]

Answer:

Step-by-step explanation:

let, the missing angle be x.

x= 66°{being the corresponding angle}

: the value of missing angle is 66°

3 0

3 years ago

It's about "rates and unit rates" sorry again I also need help here sorry I'm learning something new and I need a examples

san4es73 [151]

Answer:

1. D

2. A

I think that is the answer

5 0

3 years ago

I need help with this did I get it right

Ray Of Light [21]

I don’t think so, i think the answer is a little higher but unfortunately i dont know formula for volume of triangular prism so you’ll have to look it up

7 0

3 years ago

Read 2 more answers