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3 years ago

9

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1 answer:

Snowcat [4.5K]3 years ago

3 0

What type of problems are these?

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Help ASAP I will give 20 pionts!

pychu [463]

What do you need help with

4 0

4 years ago

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How do I solve this?

KengaRu [80]

Answer with Step-by-step explanation:

The given differential euation is

$\frac{dy}{dx}=(y-5)(y+5)\\\\\frac{dy}{(y-5)(y+5)}=dx\\\\(\frac{A}{y-5}+\frac{B}{y+5})dy=dx\\\\\frac{1}{100}\cdot (\frac{10}{y-5}-\frac{10}{y+5})dy=dx\\\\\frac{1}{100}\cdot \int (\frac{10}{y-5}-\frac{10}{y+5})dy=\int dx\\\\10[ln(y-5)-ln(y+5)]=100x+10c\\\\ln(\frac{y-5}{y+5})=10x+c\\\\\frac{y-5}{y+5}=ke^{10x}$

where

'k' is constant of integration whose value is obtained by the given condition that y(2)=0\\

$\frac{0-5}{0+5}=ke^{20}\\\\k=\frac{-1}{e^{20}}\\\\\therefore k=-e^{-20}$

Thus the solution of the differential becomes

$\frac{y-5}{y+5}=e^{10x-20}$

5 0

3 years ago

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Find the surface area of the figure.

Darina [25.2K]

B, 224in2

It may get tedious but just find the area of each face and write them down

4 0

3 years ago

Which number produces a rational number when multiplied by 1/5?

bogdanovich [222]

The answer is A
Explanation: 11x11=121
121x1/5=121/5

5 0

2 years ago

Two sets of quadratic expressions are shown below in various forms: Line 1: x2 + 3x + 2 (x + 1)(x + 2) (x + 1.5)2 − 0.25 Line 2:

Serga [27]

Its line 1

if we expand the second and third expressions they come back to the first.

The last one is called the vertex form of a parabola

5 0

4 years ago