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emmainna [20.7K]
3 years ago
7

about 1300 organ specimens are preserved in fluid. Typically contains 7/10 alcohol and 3/10 water. if one jar contains 19 pins o

f the alcohol-water solution, how much of the solution is water?
Mathematics
1 answer:
DerKrebs [107]3 years ago
4 0
5.7 pints would be water

3/10 of 19 pints are water

19*(3/10) = 5.7
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In a binomial experiment with 45 trials, the probability of more than 25 success can be approximated by What is the probability
Pani-rosa [81]

Answer:

0.6 is the probability of success of a single trial of the experiment

Complete Problem Statement:

In a binomial experiment with 45 trials, the probability of more than 25 successes can be approximated by P(Z>\frac{(25-27)}{3.29})

What is the probability of success of a single trial of this experiment?

Options:

  • 0.07
  • 0.56
  • 0.79
  • 0.6

Step-by-step explanation:

So to solve this, we need to use the binomial distribution. When using an approximation of a binomially distributed variable through normal distribution , we get:

\mu =\frac{np}{\sigma}=\sqrt{np(1-p)}

now,

Z=\frac{X-\mu}{\sigma}

so,

by comparing with P(Z>\frac{(25-27)}{3.29}), we get:

μ=np=27

\sigma=\sqrt{np(1-p)} =3.29

put np=27

we get:

\sigma=\sqrt{27(1-p)} =3.29

take square on both sides:

10.8241=27-27p

27p=27-10.8241

p=0.6

Which is the probability of success of a single trial of the experiment

5 0
3 years ago
Expand 3(-5q + 4).<br><br> A.5q + 12<br><br> B.-15q + 4<br><br> C.-15q + 12<br><br> D. 5q + 12
Ksenya-84 [330]
_Award brainliest if helped! 
(-5q * 3)  + (4 *3 ) = -15q + 12 
The answer is C. 
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3 years ago
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The functions f(x) = −(x − 1)2 5 and g(x) = (x 2)2 − 3 have been rewritten using the completing-the-square method. apply your kn
ale4655 [162]

The vertex of the function f(x) exists (1, 5), the vertex of the function g(x) exists (-2, -3), and the vertex of the function f(x) exists maximum and the vertex of the function g(x) exists minimum.

<h3>How to determine the vertex for each function is a minimum or a maximum? </h3>

Given:

$\mathrm{f}(\mathrm{x})=-(\mathrm{x}-1)^{2}+5$ and

$\mathrm{g}(\mathrm{x})=(\mathrm{x}-2)^{2}-3$

The generalized equation of a parabola in the vertex form exists

$y=a(x-h)^{2}+k

Vertex of the function f(x) exists (1, 5).

Vertex of the function g(x) exists (-2, -3).

Now, if (a > 0) then the vertex of the function exists minimum, and if (a < 0) then the vertex of the function exists maximum.

The vertex of the function f(x) exists at a maximum and the vertex of the function g(x) exists at a minimum.

To learn more about the vertex of the function refer to:

brainly.com/question/11325676

#SPJ4

8 0
1 year ago
Saffron is a powder made from crocus flowers and is used in the manufacturing of perfume. Some 8,000 crocus flowers are required
Aneli [31]
16/2=8
we need 8 times more flowers
8x8,000=64,000
64 thousand flowers
Hope that helps)
4 0
2 years ago
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Simplify. <img src="https://tex.z-dn.net/?f=%5Csqrt%7B15%7D" id="TexFormula1" title="\sqrt{15}" alt="\sqrt{15}" align="absmiddle
jolli1 [7]

Answer:

I think its 15.58

Step-by-step explanation:

3 0
3 years ago
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