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Flauer [41]
3 years ago
5

What is a direct variation and how do you do it?

Mathematics
2 answers:
aleksley [76]3 years ago
7 0
Direct Variation-<span>A relationship between two variables in which one is a constant multiple of the other. like when one variable changes the other changes in proportion to the first. If b is directly proportional to a, the equation is of the form b = ka (where k is a constant).</span>
RUDIKE [14]3 years ago
5 0
Direct Variation. Directly Proportional. A relationship between two variables in which one is a constant multiple of the other. In particular, when one variable changes the other changes in proportion to the first. If b is directly proportional to a, the equation is of the form b = ka (where k is a constant).
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The number N of bacteria present in a culture at time t (in hours) obeys the equation N = 1000e^0.01t After how many hours will
jasenka [17]

Answer: N(t) = (2^t)*1500

Step-by-step explanation:

Let's define the hour "zero" as the initial population.

So if N(t)  is the number of bacteria after t hours, then:

N(0) = 1500.

Now, we know that the population doubles every hour, so we will have that after one hour, at t = 1

N(1) = 2*1500 = 3000

after two hours, at t = 2.

N(2) = 2*(2*1500) = (2^2)*1500

After three hours, at t = 3

N(3) = 2*(2^2)*1500 = (2^3)*1500

So we already can see the pattern, the number of bacteria after t hours will be:

N(t) = (2^t)*1500

5 0
3 years ago
I cant ever find this answer everywhere i look!!!!!! WHATS 1+1
Fynjy0 [20]
2 is the answer cause 1+1=2 I don’t know any other way to explain
6 0
3 years ago
Right angled triangle calc: find a, b=24, c=33.94113
Ksenya-84 [330]
Use the Pythagorean theorem...
a²+b²=c², in this case a²=c²-b<span>²</span>

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a</span><span>²+576=1,152.00031

a</span><span>²=576.000306

a=24    (If you need the exact number, not rounded, it is 24.0000064)</span>
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3 years ago
15. Ordered: gr. viiss<br> Label: 30% solution<br> How many ml do you use?
Shkiper50 [21]

Answer:

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Step-by-step explanation:k

k

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3 years ago
A bag is filled with small and large marbles. The ratio of small to large marbles is 1:3. On your own sheet of paper, draw a tap
tiny-mole [99]
Tape diagrams are simple. Look at the picture I put in the comments
8 0
3 years ago
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