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OLEGan [10]
3 years ago
5

If IQ scores are normally distributed with a mean of 100 and a standard deviation of 15,

Mathematics
1 answer:
never [62]3 years ago
6 0
Answer: Smart.

Average is like 80
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bulgar [2K]
Yeah, you'd divide 1792 by 32 to get 56.
8 0
3 years ago
How long is a line of 1 million centimeter cubes be?
fenix001 [56]

Answer:

1m cm

10m mm

Step-by-step explanation:

4 0
2 years ago
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D^2(y)/(dx^2)-16*k*y=9.6e^(4x) + 30e^x
MA_775_DIABLO [31]
The solution depends on the value of k. To make things simple, assume k>0. The homogeneous part of the equation is

\dfrac{\mathrm d^2y}{\mathrm dx^2}-16ky=0

and has characteristic equation

r^2-16k=0\implies r=\pm4\sqrt k

which admits the characteristic solution y_c=C_1e^{-4\sqrt kx}+C_2e^{4\sqrt kx}.

For the solution to the nonhomogeneous equation, a reasonable guess for the particular solution might be y_p=ae^{4x}+be^x. Then

\dfrac{\mathrm d^2y_p}{\mathrm dx^2}=16ae^{4x}+be^x

So you have

16ae^{4x}+be^x-16k(ae^{4x}+be^x)=9.6e^{4x}+30e^x
(16a-16ka)e^{4x}+(b-16kb)e^x=9.6e^{4x}+30e^x

This means

16a(1-k)=9.6\implies a=\dfrac3{5(1-k)}
b(1-16k)=30\implies b=\dfrac{30}{1-16k}

and so the general solution would be

y=C_1e^{-4\sqrt kx}+C_2e^{4\sqrt kx}+\dfrac3{5(1-k)}e^{4x}+\dfrac{30}{1-16k}e^x
8 0
2 years ago
What is the partial product for 1,600 and 280
Likurg_2 [28]

Answer:

Hope this helps!

Step-by-step explanation:

4 0
2 years ago
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What is common tangent?
rusak2 [61]
A common tangent is a line that happens to be tangent ("touching but not intersecting a curve or curved surface") to two different coplanar ("in the same plane) circles. I do hope that helped you.
7 0
2 years ago
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