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V125BC [204]
3 years ago
6

Plz help i will give brainliest

Mathematics
2 answers:
expeople1 [14]3 years ago
5 0
These are the y intercepts
1. (0, 1/3)
2. (0, 26/3)
Dahasolnce [82]3 years ago
3 0
Your answer is 87.085
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There are 50 questions on a test and you answer 36. what % of questions did you answer
o-na [289]
36*2=72
50*2=100
72/100=72%
6 0
3 years ago
After 12 days you have 800 lbs of plutonium left to fuel your nuclear reactor. After 30 days you have 755 lbs. Find the equation
Fantom [35]
M=(755-800) /30-12
m= -45/18 or -2.5

y-800 = -2.5(x-12)
y-800 = -2.5x + 30
y = -2.5x + 830

y = -2.5(120) + 830
y = 530 lbs
4 0
3 years ago
What is the equation of the line passing through (5,6) with slope m=6?
Veronika [31]

Answer:

this is a required equation.

6 0
3 years ago
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
PLEAS HELP ON THESE QUESTIONS THEY ARE MY LAST ONE ALSO I WILL GIVE BRAINLIEST
amid [387]

Answer: the mean number is of kittens is 4

6 0
3 years ago
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