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Shalnov [3]
3 years ago
6

Simplify 5c + 5c + 6c

Mathematics
2 answers:
Vsevolod [243]3 years ago
4 0

Answer:

The simplified form of the given expression is 16c.

Step-by-step explanation:

The given expression is

5c+5c+6c

We need to find the simplified form of this expression.

Taking out common factor.

c(5+5+6)

Now, simplify the parenthesis.

c(16)

It can be written as

16c

Therefore, the simplified form of the given expression is 16c.

Nikolay [14]3 years ago
3 0
16c. Hopefully this helps.
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A researcher believes that 12% of a simple random sample of adults will be able to identify a Toyota Scion by brand and model na
DochEvi [55]

Answer: 650

Step-by-step explanation:

When prior estimate of population proportion is known , then the formula to find the required sample size is given by :-

n=p(1-p)(\dfrac{z^*}{E})^2

, where p= population proportion

E= margin of error

z* = Critical value.

Let p be the proportion of adults able to identify a Toyota Scion by brand and model name.

As per given , we have

p = 12%= 0.12

E= 2.5%=0.025

Critical value for 95% confidence interval : z* = 1.960  [By z-table ]

Then, the required sample size = n=(0.12)(1-(0.12))(\dfrac{1.96}{0.025})^2

n=(0.1056)(78.4)^2

n=(0.1056)(6146.56)

n=649.076736\approx650

Thus , the required sample size = 650

6 0
3 years ago
A bag contains three white marbles, two black marbles, and five red marbles. Find the probability of picking a black marble.
Sveta_85 [38]
Hope this helps you!

3 0
3 years ago
A software company decided to conduct a survey on customer satisfaction. Out of 564 customers who participated in the online sur
nikklg [1K]

Answer:

z=\frac{0.0904 -0.1}{\sqrt{\frac{0.1(1-0.1)}{564}}}=-0.760 \approx -0.8  

p_v =2*P(z  

Step-by-step explanation:

Information given

n=564 represent the sample selected

X=51 represent the number of people who rated the overall services as poor

\hat p=\frac{51}{564}=0.0904 estimated proportion of people who rated the overall services as poor  

p_o=0.1 is the value to compare

z would represent the statistic

Hypothsis to analyze

We want to analyze if the proportion of customers who would rate the overall car rental services as poor is 0.1, so then the system of hypothesis are:  

Null hypothesis:p=0.1  

Alternative hypothesis:p \neq 0.1  

The statistic for a one z test for a proportion is given by:

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

Replacing the info given we got:

z=\frac{0.0904 -0.1}{\sqrt{\frac{0.1(1-0.1)}{564}}}=-0.760 \approx -0.8  

And the p value since we have a bilateral test is given b:

p_v =2*P(z  

3 0
3 years ago
Please help me by answering this?
Dmitrij [34]

Answer:

180

Step-by-step explanation:

\frac{6}{2} x^{2} | \frac{8}{2}

192-12=180

8 0
3 years ago
How to find the perimeter of a right triangle using Pythagorean
dsp73

Answer:

12

Step-by-step explanation:

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