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Sati [7]
3 years ago
7

Researchers at the Centers for Disease Control and Prevention have been studying the decay pattern of a new virus with a decay r

ate of 19% per hour. They start with 300 viruses that they want to check on in the next 7 hours. How many viruses will they find in 7 hours? Round your answer to the nearest whole number
Mathematics
1 answer:
klemol [59]3 years ago
5 0

Answer:

After 7 hours will be 1.95489493x10^12 viruses

Step-by-step explanation:

If the virus spread with 19% per hour after one hour it will increase 57 and continue in the 300+((300*0.19)^7) form, we just need to caculate the form

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sukhopar [10]

Answer:

\frac{(x-2)^2}{9}+\frac{(y-1)^2}{16}=1

Step-by-step explanation:

x=2-3\cos(t)

y=1+4\sin(t)

Let's solve for \cos(t) in the first equation and then solve for \sin(t) in the second equation.

I will then use the following identity to get right of the parameter, t:

\cos^2(t)+\sin^2(t)=1 (Pythagorean Identity).

Let's begin with x=2-3\cos(t).

Subtract 2 on both sides:

x-2=-3\cos(t)

Divide both sides by -3:

\frac{x-2}{-3}=\cos(t)

Now time for the second equation, y=1+4\sin(t).

Subtract 1 on both sides:

y-1=4\sin(t)

Divide both sides by 4:

\frac{y-1}{4}=\sin(t)

Now let's plug it into our Pythagorean Identity:

\cos^2(t)+\sin^2(t)=1

\frac{x-2}{-3})^2+(\frac{y-1}{4})^2=1

\frac{(x-2)^2}{(-3)^2}+\frac{(y-1)^2}{4^2}=1

\frac{(x-2)^2}{9}+\frac{(y-1)^2}{16}=1

5 0
3 years ago
Read 2 more answers
What 100-38 (656) =1000000
Likurg_2 [28]

100 - 38(656) = 1000000

100 - 24928 = 1000000

-24828 = 1000000

This is false!

Hope this helps! ;)

4 0
3 years ago
1 - 2x = -x - 3 what is the answer?
cricket20 [7]
Isolate the variable x.
 1-2x=-x-3
1=x-3
x=4
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3 years ago
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PLS HELP ASAP THIS IS DUE IN 5 MINUTES
MA_775_DIABLO [31]

Answer:

A and B

Step-by-step explanation:

6 0
3 years ago
A cube has volume 1200 cubic inches. Write the edge length of the cube as a power.
ludmilkaskok [199]
1200 is the domain the answer is times the domain
8 0
3 years ago
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