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3 years ago

Express in numerals two thousand one hundred fiteen

Mathematics

1 answer:

Irina18 [472]3 years ago

4 0

The numerals of two thousand one hundred fifteen is 2115

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3. What are the factors of<br> 9x2 - 30x + 25?

vaieri [72.5K]

{(3x)}^{2}-2(3x)(5)+{5}^{2}

−2(3x)(5)+5

{(3x-5)}^{2}

4 0

3 years ago

Someone knows how to do this?

Zarrin [17]

Answer:

Most likely B

Step-by-step explanation:

Most likely B because it starts up around 5 which is the y int of B

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3 years ago

It was reported that 23% of U.S. adult cellphone owners called a friend for advice about a purchase while in a store. If a sampl

leva [86]

Answer:

$P(X=7)$

And using the probability mass function we got:

$P(X=7)=(15C7)(0.23)^7 (1-0.23)^{15-7}=0.0271$

Step-by-step explanation:

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

$X \sim Binom(n=15, p=0.23)$

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:

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

And we want to find the following probability:

$P(X=7)$

And using the probability mass function we got:

$P(X=7)=(15C7)(0.23)^7 (1-0.23)^{15-7}=0.0271$

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3 years ago

50% of 320 is equal to 80% of what number?

melisa1 [442]

Answer:

128

Step-by-step explanation:

8 0

3 years ago

Use the graph to answer F(-3)=

Virty [35]

Answer:

f(-3) = 1

Step-by-step explanation:

The only point with an x-coordinate of -3 has a y-coordinate of 1. That is the value of the function f(x) for x=-3.

f(-3) = 1

7 0

3 years ago

Read 2 more answers