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3 years ago

I'LL GIVE BRAINLIEST A or D

Mathematics

2 answers:

Brrunno [24]3 years ago

7 0

Answer:

Step-by-step explanation:

BabaBlast [244]3 years ago

5 0

Answer:

Step-by-step explanation:

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HELP PLS APASAPA I WILL GIVE BRAIN

Alex777 [14]

Answer:

you answer will be a binary number

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2 years ago

6. A tank contains 100-gallon of pure water. At time t = 0, a solution containing 2 lb of salt per gallon flows into the tank at

SOVA2 [1]

Answer:

The answer is below

Step-by-step explanation:

Let Q represent the amount of salt in the tank at time t.

$\frac{dQ}{dt}= flow\ in - flow\ out\\ \\flow\ in=3\ gal/min*2\ lb/gal=6\ lb/min\\\\net\ gain\ in\ tank\ volume=3-4=-1, henceflow\ out= \frac{4Q}{100-t} \\\\\frac{dQ}{dt}= 6-\frac{4Q}{100-t} \\\\\frac{dQ}{dt}+ \frac{4Q}{100-t}=6\\\\The \ integrating\ factor\ is:\\\\IF=e^{\int\limits {\frac{4}{100-t} } \, dt }=e^{-4\int\limits {\frac{-1}{100-t}}=e^{-4ln(100-t)}=(100-t)^{-4}}\\\\Multiplying\ through \ by\ IF: \\\\(100-t)^{-4}\frac{dQ}{dt}+ (100-t)^{-4}\frac{4Q}{100-t}=6(100-t)^{-4}\\\\$

$Integrating:\\\\A(100-t)^{-4}=-2(100-t)^{-3}+c\\\\A=-2(100-t)+\frac{c}{(100-t)^{-4}} \\\\at, t=0,A=0\\\\0=-2(100-0)+\frac{c}{(100-0)^{-4}}\\\\c=0.02\\\\A=-2(100-t)+\frac{0.02}{(100-t)^{-4}}$

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2 years ago

Which is the correct formula for the function?

irakobra [83]

Answer:

y = -3x -1

Step-by-step explanation:

the slope is -3 and the y-intercept is -1

8 0

2 years ago

EASY QUESTION AND I WILL GET U BRAINLIEST! Xd PLEASE HELPPPP

QveST [7]

Answer:

Box plots

Step-by-step explanation:

Box plots only show the bounds of data results - you can't count the number of inputs/observations.

8 0

3 years ago

Read 2 more answers

A 10% increase followed by another 10% increase is not the same as a total increase of

AlexFokin [52]

Answer:

21%

Step-by-step explanation:

Another 10% increased means it becomes 110*110/100 = 121. The first 10% increase means the second 10% increase will be an actual 11% increase from the original, so it will be a total of 21%.

6 0

3 years ago

Read 2 more answers