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spin [16.1K]
3 years ago
5

PLEASE HELP ME ASAP

Mathematics
1 answer:
tatiyna3 years ago
5 0

Answer:

1. 100

2. 20

Step-by-step explanation:

1. 1 Light Bulb = 1%

1%+99%=100%

2. 100 divided by 5

Hope this helped! Have a lovely day!

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I will give u brainliest and 5 star and thanks if its correct
Pachacha [2.7K]

Answer:

It's B and E

Step-by-step explanation:

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3 years ago
The area of a rectangle is 4x+32. The length is 4. Find the width.
marissa [1.9K]

\bf \textit{area of a rectangle}\\\\ A=Lw~~ \begin{cases} L=length\\ w=width\\[-0.5em] \hrulefill\\ A=4x+32\\ L=4 \end{cases}\implies 4x+32=4w \\\\\\ \cfrac{4x+32}{4}=w\implies \cfrac{~~\begin{matrix} 4 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~ (x+8)}{~~\begin{matrix} 4 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}=w\implies \boxed{x+8=w}

7 0
4 years ago
7x-6y=-1 5x-4y=1solving for eliminatio
Salsk061 [2.6K]
<span>multiply the first equation by 5 and 2nd by -7 and you get 

35x-30y=-5 
-35x+28y=-7 

now you can cancel out the x's and you get 

-2y=-12 

so 

y=6 

now you can just plug y=6 into one of the original equations and you will see that x turns out to be 5

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5 0
3 years ago
Read 2 more answers
Which of the following is used to summarize two potentially related categorical​ variables?
gayaneshka [121]
I think that you have forgot to add the choices along with the question. This has made answering difficult, but it is not unanswerable. "A two-way table" is <span>used to summarize two potentially related categorical​ variables. I hope that this is the answer that you were looking for and it has actually come to your desired help.</span>
7 0
3 years ago
Meth Barie's ice cream shop wants to decide whether to introduce a new ice cream flavor. They randomly selected 15 customers at
Marianna [84]

Answer:

Meth Barie's ice cream shop should not introduce the new ice cream flavor.

Step-by-step explanation:

We are given the following in the question:  

Population mean, μ = 4.01

Sample mean, \bar{x} = 4.4

Sample size, n = 15

Alpha, α = 0.1

Sample standard deviation, s = 1.6 minutes

First, we design the null and the alternate hypothesis

H_{0}: \mu \leq 4.01\\H_A: \mu > 4.01

We use one-tailed t test to perform this hypothesis.

Formula:

t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{s}{\sqrt{n}} }

Putting all the values, we have

t_{stat} = \displaystyle\frac{4.4 - 4.0}{\frac{1.6}{\sqrt{15}} } = 0.968

Option B) 0.968

Rejection region:

Now, t_{critical} \text{ at 0.10 level of significance, 9 degree of freedom } = 1.345

So the rejection region would be a value of t-statistic greater than 1.345.

Option B) t > 1.345

Conclusion:

Since,                    

t_{stat} < t_{critical}

We fail to reject the null hypothesis and accept the null hypothesis. Meth Barie's ice cream shop should not introduce the new ice cream flavor.

8 0
4 years ago
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