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Ratling [72]
2 years ago
15

Can someone help me on this for 13 points

Mathematics
2 answers:
eduard2 years ago
6 0

Answer:

m < ABD = 135

x = 67.5

nignag [31]2 years ago
3 0

Answer:

look at the picture i have sent

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some psychologists believe that a genius should be defined as anyone having an IQ over 140. If IQ scores are normally distribute
denis23 [38]

Answer:

61,239,550

Step-by-step explanation:

We let the random variable X denote the IQ scores. This would imply that X is normal with a mean of 100 and standard deviation of 17. We proceed to determine the probability that an individual chosen at random from the population would be a genius, that is;

Pr( X>140)

The next step is to evaluate the z-score associated with the IQ score of 140 by standardizing the random variable X;

Pr(X>140)=Pr(Z>\frac{140-100}{17})=Pr(Z>2.3529)

The area to the right of 2.3529 will be the required probability. This area from the standard normal tables is 0.009314

From a population of 6,575,000,000 the number of geniuses would be;

6,575,000,000*0.009314 = 61,239,550

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3 years ago
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Find the product of 51 and -2.5
Elodia [21]

Answer: -127.5

Hope this helps!

3 0
3 years ago
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What is the missing coefficient of the x-term of the product (-x-5)² after it has been simplified?
Mice21 [21]

The missing coefficient of the x-term after finding the product of (-x - 5)², is: C. 10.

<h3>What is the Coefficient of a Variable?</h3>

The coefficient of a variable is the numerical value that comes before the variable and multiplies it.

Find the product of (-x - 5)²:

(-x - 5)(-x - 5)

-x(-x - 5) -5(-x - 5)

x² + 5x + 5x + 25

x² + 10x + 25

The x-term is "10x". The coefficient is: 10.

Learn more about the coefficient of a variable on:

brainly.com/question/16895867

#SPJ1

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2 years ago
Math Sequence help!!
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Hello here is a solution :

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