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kati45 [8]
2 years ago
7

Need help with this

Mathematics
1 answer:
sashaice [31]2 years ago
5 0

Answer:

First off, who is Landon Long? Nevermind.

Step-by-step explanation:

So to create equal fractions, you must multiply both the denominator and numerator by the same number.

Example:

\frac{1}{2} *\frac{3}{3} =\frac{3}{6} =\frac{1}{2}

What I see is that maybe you need to use the pictures to multiply the fractions by another fraction with the same numerator and denominator to create an equivalent fraction!

Sorry, might be wrong... :(

Anyways, hope this helps!

P.S. Stay Safe

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Franchise Business Review stated over 50% of all food franchises earn a profit of less than $50,000 a year. In a sample of 130 c
nydimaria [60]

Answer:

We need a sample size of 564.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

For this problem, we have that:

\pi = \frac{81}{130} = 0.6231

The margin of error is:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

95% confidence level

So \alpha = 0.05, z is the value of Z that has a pvalue of 1 - \frac{0.05}{2} = 0.975, so Z = 1.96.

Based upon a 95% confidence interval with a desired margin of error of .04, determine a sample size for restaurants that earn less than $50,000 last year.

We need a sample size of n

n is found when M = 0.04

So

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

0.04 = 1.96\sqrt{\frac{0.6231*0.3769}{n}}

0.04\sqrt{n} = 1.96\sqrt{0.6231*0.3769}

\sqrt{n} = \frac{1.96\sqrt{0.6231*0.3769}}{0.04}

(\sqrt{n})^{2} = (\frac{1.96\sqrt{0.6231*0.3769}}{0.04})^{2}

n = 563.8

Rounding up

We need a sample size of 564.

4 0
3 years ago
What is the answer of 603 x 42 , this question is multiply , it’s of my brother who is just in g-4 …… pls help if you know but t
satela [25.4K]

Answer:

<h2>25326</h2>

Step-by-step explanation:

please refer to the picture above

\tt{ \green{P} \orange{s} \red{y} \blue{x} \pink{c} \purple{h} \green{i} e}

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2 years ago
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s344n2d4d5 [400]

Answer:

11.2

Step-by-step explanation:

PYTHAGOREAN THEOREM

14^2 = 8.4^2 + x^2

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Rina8888 [55]
C=3N+425
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C=3 \times 2500 + 425=7500+425=7925

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