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Ad libitum [116K]
3 years ago
11

What is the mean of the normal distribution shown below?

Mathematics
1 answer:
Rama09 [41]3 years ago
5 0

Answer:

mean = 0

Step-by-step explanation:

-3 -2 -1

0

1

2

3

if your set is  -3, -2, -1, 0, 1, 2, 3  the your mean = 0

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Solve: Six and three sevenths minus one and three sixths equals blank
Natali5045456 [20]

Answer:

4 13/16

Step-by-step explanation:

6 3/7 - 1 3/6 =

270/42  -   63/42 = 207/42 = 4 39/48 = 4 13/16

8 0
2 years ago
After an antibiotic tablet is taken, the concentration of the antibiotic in the bloodstream is modelled by the function C(t)=8(e
Alexxx [7]

Answer:

the maximum concentration of the antibiotic during the first 12 hours is 1.185 \mu g/mL at t= 2 hours.

Step-by-step explanation:

We are given the following information:

After an antibiotic tablet is taken, the concentration of the antibiotic in the bloodstream is modeled by the function where the time t is measured in hours and C is measured in \mu g/mL

C(t) = 8(e^{(-0.4t)}-e^{(-0.6t)})

Thus, we are given the time interval [0,12] for t.

  • We can apply the first derivative test, to know the absolute maximum value because we have a closed interval for t.
  • The first derivative test focusing on a particular point. If the function switches or changes from increasing to decreasing at the point, then the function will achieve a highest value at that point.

First, we differentiate C(t) with respect to t, to get,

\frac{d(C(t))}{dt} = 8(-0.4e^{(-0.4t)}+ 0.6e^{(-0.6t)})

Equating the first derivative to zero, we get,

\frac{d(C(t))}{dt} = 0\\\\8(-0.4e^{(-0.4t)}+ 0.6e^{(-0.6t)}) = 0

Solving, we get,

8(-0.4e^{(-0.4t)}+ 0.6e^{(-0.6t)}) = 0\\\displaystyle\frac{e^{-0.4}}{e^{-0.6}} = \frac{0.6}{0.4}\\\\e^{0.2t} = 1.5\\\\t = \frac{ln(1.5)}{0.2}\\\\t \approx 2

At t = 0

C(0) = 8(e^{(0)}-e^{(0)}) = 0

At t = 2

C(2) = 8(e^{(-0.8)}-e^{(-1.2)}) = 1.185

At t = 12

C(12) = 8(e^{(-4.8)}-e^{(-7.2)}) = 0.059

Thus, the maximum concentration of the antibiotic during the first 12 hours is 1.185 \mu g/mL at t= 2 hours.

4 0
3 years ago
You can draw a quadrilateral with two sets of parallel lines and no right angles. true false
yuradex [85]
False. When a quadrilateral has two sets of parallel sides ,like I drew below, all four corners form right angles.

5 0
3 years ago
Read 2 more answers
a geometric sequence has an initial value of 25 and a common ratio of 1.8. Write a function to represent this sequence . Find.th
Debora [2.8K]
Use the formula

a_n = a_1•r^(n-1)

a_23 = 25•(1.8)^(23 - 1)

Can you finish?
8 0
3 years ago
Help please im so close to finishing my class
Ivanshal [37]
The correct option is the second one y<=1/2x+3
4 0
3 years ago
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