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Westkost [7]
3 years ago
6

Y = (1/4)x^2 - (1/2)lnx..over the interval (1, 7e) ...what is the arc length ?

Mathematics
1 answer:
xenn [34]3 years ago
6 0
So, f[x] = 1/4x^2 - 1/2Ln(x) 
<span>thus f'[x] = 1/4*2x - 1/2*(1/x) = x/2 - 1/2x </span>
<span>thus f'[x]^2 = (x^2)/4 - 2*(x/2)*(1/2x) + 1/(4x^2) = (x^2)/4 - 1/2 + 1/(4x^2) </span>
<span>thus f'[x]^2 + 1 = (x^2)/4 + 1/2 + 1/(4x^2) = (x/2 + 1/2x)^2 </span>
<span>thus Sqrt[...] = (x/2 + 1/2x) </span>
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The function f(x) = 28(1.45)x models the number of cats and dogs adopted from a local animal shelter, where x represents the num
Phantasy [73]

Answer:

Step-by-step explanation:

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6 0
3 years ago
1. Solve the following equation.(MAFS.8.EE.3.7)<br><br> 5(3x + 7) + 2x = 7x – 5(–2x + 9)
Ksivusya [100]

Answer:

there is no solution

Step-by-step explanation:

Expand.

15x+35+2x=7x+10x-4515x+35+2x=7x+10x−45

2 Simplify  15x+35+2x15x+35+2x  to  17x+3517x+35.

17x+35=7x+10x-4517x+35=7x+10x−45

3 Simplify  7x+10x-457x+10x−45  to  17x-4517x−45.

17x+35=17x-4517x+35=17x−45

4 Cancel 17x17x on both sides.

35=-4535=−45

5 Since 35=-4535=−45 is false, there is no solution.

No Solution

4 0
3 years ago
Read 2 more answers
Answer these two please!!
Gala2k [10]

Answer:

#1: x/4 - 3/4

#2: x/14 + 9/2

Step-by-step explanation:

because i said so, you should mark me brainliest

7 0
3 years ago
Bharat has two identical ink pens with full ink. He used 3/4th of the ink from the first pen and 2/3rd of the ink from the secon
Leno4ka [110]

Answer:

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Step-by-step explanation:

3 0
3 years ago
10x + 9y=0<br> 8x + 18y=0
Luba_88 [7]

Answer:

x=0 y=0

Step-by-step explanation:

multiple the first equation by 2

after subtract equation 2 from 1

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3 0
3 years ago
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