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2 years ago

A group of friends wants to go to the amusement park. They have

Mathematics

1 answer:

Murrr4er [49]2 years ago

8 0

Answer:

Step-by-step explanation: The answer is 6 friends. Assuming that the group is going in one car. Leaving them with 100.5 to spend on admission.You can add the admission fee 6 times until they have nothing left

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Please answer these questions...

Sphinxa [80]

Answer:-18 and T=3+Y

Step-by-step explanation:

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3 years ago

Reduce the fraction to lowest terms. 38x^2yz^2/ -19 yz^2z^3

Elenna [48]

Hope this is helpful.

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4 years ago

If we wanted to create a new 90% confidence interval from a different sample for the proportion of those with a two on one date

slava [35]

Answer: 271

Step-by-step explanation:

The formula we use to find the sample size is given by :-

$n=p(1-p)(\dfrac{z_{\alpha/2}}{E})^2$

, where $z_{\alpha/2}$ is the two-tailed z-value for significance level of $(\alpha)$

p = prior estimation of the proportion

E = Margin of error.

If prior estimation of the proportion is unknown, then we take p= 0.5 , the formula becomes

$n=0.5(1-0.5)(\dfrac{z_{\alpha/2}}{E})^2$

$n=0.25(\dfrac{z_{\alpha/2}}{E})^2$

Given : Margin of error : E= 0.05

Confidence level = 90%

Significance level $\alpha=1-0.90=0.10$

Using z-value table , Two-tailed z-value for significance level of $0.10$

$z_{\alpha/2}=1.645$

Then, the required sample size would be :

$n=0.25(\dfrac{1.645}{0.05})^2$

Simplify,

$n=270.6025\approx271$

Hence, the required minimum sample size =271

3 0

4 years ago

HELP AND THEY ARE all Diffrent questions

Anarel [89]

Answer:1)720 white stripes and 840 red stripes

2)48 divided by 4=12 feett per second

3)265 divded by 4 than divide 425 by what you got before

4)3 times 10=30

Step-by-step explanation:

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2 years ago

Read 2 more answers

The diameter of a parabolic mirror is 22 centimeters, and the mirror has a depth of 0.5 centimeters at the center. What is the e

a_sh-v [17]

1/242x^2 is your answer

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3 years ago