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3 years ago

Help me please I really don’t understand:(

Mathematics

1 answer:

stich3 [128]3 years ago

3 0

Answer:

Step-by-step explanation:First one is 2

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PLEASE HELP!!!! Question below.

aleksley [76]

Step-by-step explanation:

Answer is in the pic above

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3 years ago

Vicki puts 10 books on a shelf.

nadezda [96]

$the\ mean\ hickness\ of\ Vicki's\ books= \frac{28\ cm}{10} =2.8\ cm\\\\28\ cm\ \rightarrow\ 10\ boocks\\120\ cm\ \rightarrow\ x\\\\x= \frac{120\cdot 10}{28} \approx42.9\\\\Ans.\ Vicki\ can\ put\ 42\ books.$

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3 years ago

Help me please ASAP ......

Dvinal [7]

4. 3(y + 4y) this is distributive property! Hope it helps. Btw can you please check out a question on my page? thanks!!

5 0

3 years ago

Who ever answers ths is 52 minutes will get brainlyeiest

Klio2033 [76]

Answer:

-6r+6

Step-by-step explanation:

Let us expand the expression:

8-(6r+2)=

8-6r-2=

6-6r

-6r+6

I hope this helps! :)

4 0

2 years ago

Read 2 more answers

99 POINT QUESTION, AND BRAINLIEST!!!

77julia77 [94]

$\displaystyle\int_{x=1}^{x=14}\frac{1-\cos4x}{4x-\sin4x}\,\mathrm dx$

First, replace $y=4x$ and $\mathrm du=4\,\mathrm dx$ . Then you have

$\displaystyle\frac14\int_{y=4}^{y=56}\frac{1-\cos y}{y-\sin y}\,\mathrm dy$

If we take $z=y-\sin y$ , then immediately we see a differential in the numerator in the form of $\mathrm dz=(1-\cos y)\,\mathrm dy$ . So the integral becomes

$\displaystyle\frac14\int_{z=4-\sin4}^{z=56-\sin56}\frac{\mathrm dz}z$

and evaluates to

$\dfrac14\ln|z|\bigg|_{z=4-\sin4}^{z=56-\sin56}=\dfrac14\left(\ln|56-\sin56|-\ln|4-\sin4|\right)=\dfrac14\ln\left|\dfrac{56-\sin56}{4-\sin4}\right|$

making (A) the correct answer.

4 0

3 years ago

Read 2 more answers