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Ipatiy [6.2K]
3 years ago
7

Probability A survey of a college freshment class has determined that the mean height of females in the class is 64 inches,with

a standard deviation of 3.2 inches.
(a) Assuming the data can be modeled by a normal probability density function,find a model for these data.h
(b) Use a graphing utility to graph the model.Be sure to choose an appropriate viewing window.
(c) Find the derivative of the model.
(d) Show that f ' > 0 for x < µ and f' < 0 for x > µ.

Mathematics
1 answer:
kykrilka [37]3 years ago
6 0

Answer:

Please see attachment

Step-by-step explanation:

Please see attachment

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Answer:

60

Step-by-step explanation:

The computation of the rest of the marbles is given below:

Since there is 20 red and 15 white marbles

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X+2y=10
x=10-2y

6y=-3(10-2y)+30
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3 years ago
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Select the locations on the number line to plot the points 2, 1, and −4 .
rodikova [14]

Answer:

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Step-by-step explanation:

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2 years ago
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What is the equation for​
WARRIOR [948]

The equation of a line that is perpendicular to the given line is y = –4x – 16.

Solution:

The equation of a line given is y = 0.25x – 7

Slope of the given line(m_1) = 0.25

Let m_2 be the slope of the perpendicular line.

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<em>If two lines are perpendicular then the product of the slopes equal to –1.</em>

\Rightarrow m_1 \cdot m_2=-1

\Rightarrow 0.25\cdot m_2=-1

\Rightarrow m_2=\frac{-1}{0.25}

\Rightarrow m_2=-4

Point-slope intercept formula:

y-y_1=m(x-x_1)

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Substitute these in the formula, we get

y-8=-4(x-(-6))

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Hence the equation of a line that is perpendicular to the given line is

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3 years ago
At what rate did the rain fall?
Levart [38]

Answer:

2 cm per hour

Step-by-step explanation:

1 hour lines up with 2cm

2 hours line up with 4cm

3 hours line up with 6cm

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2 years ago
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