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olga55 [171]
3 years ago
14

A person goes to the doctor and needs a 3-month prescription of medicine. The person is required to take 3 pills per day. How ma

ny pills will the doctor write the prescription for assuming there are 30 days in a month?
Mathematics
1 answer:
amid [387]3 years ago
3 0
Well start with 3x30 to find the amount he takes in 1 month . Then you take the answer (90)x3. Your answer will be 270 pills .
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Answer:

It would roll in this direction.

\nu  =  (-a/\sqrt{a^2+b^2},-b/\sqrt{a^2+b^2})

Step-by-step explanation:

It would roll to the direction of maximum decrease, which is the -1 times the direction of maximum increase, which is given by the gradient of the function.  

Since  

z =  ax^2  + by^2

For this case, the gradient of your function would be

\nabla z  = (2ax , 2by)

And  -1  times the gradient of your function would be

-\nabla z  = (-2ax , -2by)\\

Then, at

 (1,1,a+b),\\x = 1 \\y = 1

So it would go towards

v = (-2a,-2b)

The magnitud of that vector is

|v| =  2\sqrt{a^2+b^2}

and to conclude it would roll in this direction.

\nu  =  (-a/\sqrt{a^2+b^2},-b/\sqrt{a^2+b^2})

6 0
3 years ago
Given that k is a positive integer. Find, in terms of k, an expression for Sn, which is the sum of the integers from 2k to 4k in
Elden [556K]

Answer:

S_n=3k\cdot (2k+1)=6k^2 +3k

Step-by-step explanation:

k is a positive integer.

Consider an arithmetic sequence:

a_1=2k\\ \\a_n=4k\\ \\d=1

First, find n:

a_n=a_1+(n-1)\cdot d\\ \\4k=2k+(n-1)\cdot 1\\ \\2k=n-1\\ \\n=2k+1

Now, find the sum of these 2k+1 terms:

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3 years ago
(2X+3)^3<br>Can anyone answer this ?
IrinaK [193]
I hope this helps you

6 0
3 years ago
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Aleks04 [339]
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Solve this problem too
leonid [27]

Answer:

1.120

Step-by-step explanation:

going from small to large milli is 10^-3 L

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