3 years ago

What is a simplified form of the expression 2c + 2 + 6c – 4?

Mathematics

1 answer:

Stels [109]3 years ago

5 0

Answer:

8c - 2

I just turned it in

Step-by-step explanation:

PLEASE MARK BRAINLIEST

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Svetlanka [38]

the answer is B if you want it in simplist form

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4 years ago

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The advertising department of a nationally circulated magazine wishes to estimate the mean age of its subscribers within 0.5 yea

zhenek [66]

Answer: Option 'd' is correct.

Step-by-step explanation:

Since we have given that

Margin of error = 0.5 years

Standard deviation = 5

At 90% confidence, z = 1.645

We need to find the minimum size of the sample they must take.

So,

$n=(\dfrac{z\sigma}{E})^2\\\\n=(\dfrac{1.645\times 5}{0.5})^2\\\\n=270.6\\\\n\approx 271$

Hence, Option 'd' is correct.

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3 years ago

Which of the following are graphs of functions?

Blizzard [7]

The answers are the one on the top right, bottom one(middle), and I think the one on the top left.

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3 years ago

10 points Help Me Please I will give brainiest

RoseWind [281]

Answer:

ITS C

Step-by-step explanation:

Because since it has a one time fee of 5, the graph has to start at 5, then you narrow it down to c or d, if you look at d then you can see that the graph isnt going up 2 dollars, so then the answer is c.

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3 years ago

Rearrange the equation e-5=2f to e=

irga5000 [103]

-2f-5=-e

then you divide by the -1 to get the positive e

e=2f+5

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4 years ago