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podryga [215]
3 years ago
9

What is the equation in point-slope form of a line that passes through the points (3, −5) and (−8, 4) ?

Mathematics
2 answers:
Nookie1986 [14]3 years ago
7 0

I think it's C or A what do you think it is



pentagon [3]3 years ago
6 0
The answer is c. Don’t mind the writing was rushing.

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A tank contains 300 liters of fluid in which 40 grams of salt is dissolved. Brine containing 1 gram of salt per liter is then pu
bonufazy [111]

Answer:

A(t) = 300 -260e^(-t/50)

Step-by-step explanation:

The rate of change of A(t) is ...

A'(t) = 6 -6/300·A(t)

Rewriting, we have ...

A'(t) +(1/50)A(t) = 6

This has solution ...

A(t) = p + qe^-(t/50)

We need to find the values of p and q. Using the differential equation, we ahve ...

A'(t) = -q/50e^-(t/50) = 6 - (p +qe^-(t/50))/50

0 = 6 -p/50

p = 300

From the initial condition, ...

A(0) = 300 +q = 40

q = -260

So, the complete solution is ...

A(t) = 300 -260e^(-t/50)

___

The salt in the tank increases in exponentially decaying fashion from 40 grams to 300 grams with a time constant of 50 minutes.

6 0
2 years ago
Read 2 more answers
Marcus has x songs downloaded on his phone. He downloads 20 more songs to his phone.
Aleks04 [339]
X+20 because x= origanal amount +20 more
6 0
3 years ago
Find the unknown measures. Round lengths to the nearest hundredth and angle measures to the nearest degree.
MatroZZZ [7]
The answer is AB= 4.62; mA= 22; mB=68
You could quickly find the answer by just using Pythagorean theorem to find AB.
4.3^2 +1.7^2 = AB^2
5 0
3 years ago
3/4 + 3/4 + 3/4 = 9 x ?
Dominik [7]
\frac{3}{4} + \frac{3}{4} + \frac{3}{4} = 9x \\ \\ \frac{9}{4} = 9x \\ \\ \frac{9}{4 \times 9} = x \\ \\ \frac{9}{36} = x \\ \\ x = \frac{1}{4} \\ \\

The answer is: x = 1/4 or x = 0.25.
7 0
2 years ago
ANYONE PLZZ THIS DUE IN AN HOUR!!!! Will mark the brainliest
Semenov [28]

Answer:

Option C is correct.

Step-by-step explanation:

The area of 1 side of the divider is approximately 8 x 3 = 24 < 25  

Hope this helps!

:)

4 0
3 years ago
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