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2 years ago

Which expression represents the area of the rectangle below? 2x + 3 6

Mathematics

1 answer:

brilliants [131]2 years ago

7 0

Answer:

can I see a picture of the question cause this makes no sense

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Two students are reading a novel. Ashley reads 10 pages per day. Carly reads 8 pages per day, but she starts

natulia [17]

Answer:

On day 20, they should both be on page 200

Step-by-step explanation:

I set the 2 equations up:

10d=8d+40 and then subtracted 8d from both sides

2d=40 and then divided both sides by 2

d=20

I then took 20 and multiplied it by 10 for Ashley (200) and then multiplied it by 8 for Carly (160) and added 40 (200)

Hope this helps!

3 0

2 years ago

Help math question derivative!

atroni [7]

Let $f(x)=\sec^{-1}x$ . Then $\sec f(x)=x$ , and differentiating both sides with respect to $x$ gives

$(\sec f(x))'=\sec f(x)\tan f(x)\,f'(x)=1$
$f'(x)=\dfrac1{\sec f(x)\tan f(x)}$

Now, when $x=\sqrt2$ , you get

$(\sec^{-1})'(\sqrt2)=f'(\sqrt2)=\dfrac1{\sec\left(\sec^{-1}\sqrt2\right)\tan\left(\sec^{-1}\sqrt2\right)}$

You have $\sec^{-1}\sqrt2=\dfrac\pi4$ , so $\sec\left(\sec^{-1}\sqrt2\right)=\sqrt2$ and $\tan\left(\sec^{-1}\sqrt2\right)=1$ . So $(\sec^{-1})'(\sqrt2)=\dfrac1{\sqrt2\times1}=\dfrac1{\sqrt2}$

5 0

3 years ago

What is the perimeter of this polygon?<br>A(2, 3)<br>B(-4, 0)<br>C(0,-4)<br>D(4,0)

vovangra [49]

Answer:2,3 hope it help you

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

Geometry HW! PLS HELP

BlackZzzverrR [31]

The answer is B. CD=KL, DE=LM, EF=MN, and so on

8 0

3 years ago

Joan wants to get a $1,000 loan from her bank. She finds out That the current interest rate is 17%. If Joan came to you for advi

Lady bird [3.3K]

I would tell her not to because not only does she have to pay back the 1000 but now she also has to pay back the interest on it. She should just wait or save up until she has 1000 that way she dont gotta pay extra.

8 0

2 years ago