All categories

3 years ago

Needddd helppp plzzzzz

Mathematics

1 answer:

Hoochie [10]3 years ago

8 0

O k s o I d o n. O t k no w

You might be interested in

What is the vertex of the parabola? f(x) = 2x² + 16x + 30

Viktor [21]

Answer:

y=2(x−4)²+3

Step-by-step explanation:

7 0

3 years ago

Girl please help how do you graph y= 3x + 2

MAVERICK [17]

Answer:

3 is your slope, 2 is the y intercept

Step-by-step explanation:

Start at (0,2) or 2 on the y axis. Your slope is 3 or, 3/1 slope is always rise over run, so for every 3 you go up, you go over one. so make a dot at (0,2), then a dot at (1,5), then at (2,8). and so on. Always go to the right one and up three. If you need to go into the negatives, you will go left 3 and down one, so (-1,-1), then (-2,-4), and so on.

3 0

3 years ago

Read 2 more answers

Pls Help!

Sphinxa [80]

Answer:

she can buy 13

please brainliest or hear

8 0

3 years ago

Read 2 more answers

The owner of a small deli is trying to decide whether to discontinue selling magazines. He suspects that only 7% of his customer

Mrrafil [7]

Using the binomial distribution, it is found that there is a 0.0116 = 1.16% probability that exactly 4 out of the first 14 customers buy a magazine.

<h3>What is the binomial distribution formula?</h3>

The formula is:

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

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

The parameters are:

x is the number of successes.

n is the number of trials.

p is the probability of a success on a single trial.

In this problem:

7% of his customers buy a magazine, hence p = 0.07.

A sample of 14 customers is taken, hence n = 14.

The probability that exactly 4 out of the first 14 customers buy a magazine is P(X = 4), hence:

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

$P(X = 4) = C_{14,4}.(0.07)^{4}.(0.93)^{10} = 0.0116$

0.0116 = 1.16% probability that exactly 4 out of the first 14 customers buy a magazine.

More can be learned about the binomial distribution at brainly.com/question/24863377

7 0

3 years ago

<img src="https://tex.z-dn.net/?f=%5Cleft%28%5Csqrt%7B3%7D%2B4%5Cright%29%5Cleft%281%2B%5Csqrt%7B3%7D%5Cright%29" id="TexFormula

kirza4 [7]

Answer:

$\huge\boxed{\sf 7 + 5\sqrt{3} }$

Step-by-step explanation:

$(\sqrt{3} +4)(1+\sqrt{3})\\\\= \sqrt{3}(1+\sqrt{3} )+4(1+\sqrt{3})\\\\= \sqrt{3} + (\sqrt{3} )^2 + 4 + 4\sqrt{3} \\\\= \sqrt{3} + 3+4+4\sqrt{3} \\\\= 7 + \sqrt{3} + 4\sqrt{3} \\\\Take \ \sqrt{3} \ common\\\\= 7 + \sqrt{3} (1+4)\\\\= 7 + \sqrt{3}(5)\\\\= 7 + 5\sqrt{3} \\\\\rule[225]{225}{2}$

Hope this helped!

4 0

2 years ago