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cluponka [151]
3 years ago
11

Simplify 9c-3c+4c Thanks

Mathematics
2 answers:
Evgesh-ka [11]3 years ago
7 0
The answer of it is 10c

Helen [10]3 years ago
5 0
Just ignore the c first

Then 9-3+4
= 6+4
= 10

Final answer is 10c

Brainliest answer?
Hope I can help you :)
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List the first 3 common multiples of 2 and 3 , 3 and 6
musickatia [10]

The smallest 3 common multiples of  2  and  3  are  6,  12,  and  18 .

The smallest 3 common multiples of  3  and  6  are also  6,  12,  and  18 .


7 0
3 years ago
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A quality control engineer at a potato chip company tests the bag filling machine by weighing bags of potato chips. Not every ba
Ahat [919]

Answer:

z=\frac{0.21 -0.15}{\sqrt{\frac{0.15(1-0.15)}{100}}}=1.68  

Step-by-step explanation:

Information provided

n=100 represent the random sample taken

X=21 represent the number of bags overfilled

\hat p=\frac{21}{100}=0.21 estimated proportion of overfilled bags

p_o=0.15 is the value that we want to test

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Hypothesis

We need to conduct a hypothesis in order to test if the true proportion of overfilled bags is higher than 0.15.:  

Null hypothesis:p =0.7  

Alternative hypothesis:p > 0.15  

The statistic for this case is:

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

And replacing the info given we got:

z=\frac{0.21 -0.15}{\sqrt{\frac{0.15(1-0.15)}{100}}}=1.68  

5 0
3 years ago
What would be the most logical first step for solving this quadratic equation?
Sav [38]

Answer:

D. Subtract 4 from both sides

Explanation:

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2 years ago
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Let's solve this question by step by step.

Layout equation.

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Step 1: Simplify both sides of the equation.

−104=−8(k+8)

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−104=−8k−64

Step 2: Flip the equation.

−8k−64=−104

Step 3: Add 64 to both sides.

−8k−64+64=−104+64

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Step 4: Divide both sides by -8.

-8k/-8=-40/-8

The answer for this problem is k=5.

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3 years ago
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4 years I’m pretty sure.
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