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nevsk [136]
3 years ago
9

Having trouble finding what y equals

Mathematics
1 answer:
Natalija [7]3 years ago
5 0
The conjecture is the formula, and we start with 3. However, as x increases, y decreases by 1, so we can do 3-x (as -1*x puts -x in)
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How do I factorise 42 - 66x
lisov135 [29]
The answer is 6(-11x+7)
6 0
3 years ago
A line with a slope of -2 is written in the form y=mx+b.
yanalaym [24]

Answer:

b = 3

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + b ( m is the slope and b the y- intercept )

Here m = - 2 , then

y = - 2x + b ← is the partial equation

To find b substitute (5, - 7 ) into the partial equation

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5 0
3 years ago
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
3 years ago
Read 2 more answers
$1200 is invested at 3% compounded quarterly. What is the total amount, to the nearest dollar, after 5 years?
Mekhanik [1.2K]
The formula to calculate the amount is 1200(1+0.03/4)^5
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3 years ago
HELP, PLEASE <br><br>Will mark Brainliest for the correct answer. There are two questions.
notka56 [123]

Answer: if you think about b it sounds wrong so the answer is probably A

Step-by-step explanation: you said it wasn’t C or D so between A and B , A makes more sense

3 0
3 years ago
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