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coldgirl [10]
3 years ago
14

For a population with u=100 and a=20, what is the z-score that corresponds to x=90?

Mathematics
1 answer:
max2010maxim [7]3 years ago
3 0
I guess that u = μ & that a=σ. If so:

μ =100 & that σ =20 & x=20

Z score = (x-μ) / σ  ==> Z score = (90-100)/20 ==> Z = - 0.5
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What is the greatest common factor of 3x4, 15x3, and 21x??
luda_lava [24]

Answer:

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Step-by-step explanation:

3x^2(x^2), 3x^2(5x) , 3x^2(7)

4 0
3 years ago
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Which one answers this equation
Rom4ik [11]

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divided

Step-by-step explanation:

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5 0
3 years ago
You are a member of a darts team and they have won £1750 prize money in a competition. £70 is to be saved for a celebration part
grandymaker [24]
Most of the information's that are required for solving this question is already given in the question. It is important to check them minutely before trying to solve the problem in hand.
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The amount of money that needs to be saved = 70 pounds
Then
Amount of money remaining after savings = (1750 - 70) pounds
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So
The amount of money
that each members of the darts team gets = 1680/14
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7 0
3 years ago
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Vilka [71]

Answer:

Step-by-step explanation:

Find two linear functions p(x) and q(x) such that (p (f(q(x)))) (x) = x^2 for any x is a member of R?

Let  p(x)=kpx+dp  and  q(x)=kqx+dq  than

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So you want:

−2kpk2q=0  

and

kpkq=−1  

and

2kpd2p−3kpdq+7=0  

Now I amfraid this doesn’t work as  −2kpk2q=0  that either  kp  or  kq  is zero but than their product can’t be anything but  0  not  −1 .

Answer: there are no such linear functions.

6 0
2 years ago
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tiny-mole [99]
2y+X+4+7x+3y+4* in simplest form is:
8x+5y+8
7 0
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