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3 years ago

Find the circumference

Mathematics

1 answer:

Oksanka [162]3 years ago

8 0

Answer:

Step-by-step explanation:

the formula is 2xpi x R the cercomfrence only depends on the radious

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How do you factor x^2+7x+12

erik [133]

Answer:

(x+3)(x+4)

Step-by-step explanation:

(x+3)(x+4)

this is because your two numbers after x should add to 7 and multiply to 12.

hope that makes sense!

7 0

3 years ago

Read 2 more answers

An office remodeling job takes 5 & 1/2 days to complete. Before working

Oksana_A [137]

Answer: The percent of the estimated time is the actual time is about 14%.

Step-by-step explanation:

As per given,

Actual time of completing the job = $5\dfrac{1}{2}\text{ days}=\dfrac{11}{2}\text{ days}$

Estimated time for completing the job = $4\dfrac{3}{4}\ \text{days}=\dfrac{19}{4}\ \text{days}$

The percentage error is given by:-

$\%\text{ error}= \dfrac{|\text{Estimated-Actual}|}{\text{Actual}}\times100$

$=\dfrac{|\dfrac{19}{4}-\dfrac{11}{2}|}{\dfrac{11}{2}}\times100\\\\\\=\dfrac{|\dfrac{19-22}{4}|}{\dfrac{11}{2}}\times100\\\\\\=\dfrac{|\dfrac{-3}{4}|}{\dfrac{11}{2}}\times100\\\\\\=\dfrac{\dfrac{3}{4}}{\dfrac{11}{2}}\times100\\\\\\=\dfrac{3\times2}{11\times4}\times100\\\\\approx14\%$

The percent of the estimated time is the actual time is about 14%.

3 0

3 years ago

Solve for b<br> -11b+7=40

chubhunter [2.5K]

Answer:-3

Step-by-step explanation:

40-7=33

33/-11=-3

5 0

3 years ago

Can someone help me with me with my most recent question please

mojhsa [17]

Answer:

no I can't

Step-by-step explanation:

im a dum dum, sorry.

8 0

3 years ago

Is 6.78778777 irrational?

Monica [59]

No its not because its a repeating decimal for a number to be a irrational number it has to be non terminating or non repeating

7 0

3 years ago