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DedPeter [7]
4 years ago
9

8 divided 643 what's the answer

Mathematics
1 answer:
FromTheMoon [43]4 years ago
5 0
The answer 
it is 80.375
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Item 5
Nina [5.8K]

Answer:

50³ = 125,000

Step-by-step explanation:

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3 years ago
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What’s the correct answer for this?
snow_tiger [21]

Answer

D.

Explanation

mIH = 44

mIJ = 46

mJK = 77

ADDING THEM ALL TO FIND THE MEASURE OF m<HOK

<HOK = 44+46+77

<HOK = 167°

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3 years ago
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7. Use the discriminant to determine the number of real solutions of the equation. 5x^2- 3x+1=0
MariettaO [177]

Answer:

c. None

Step-by-step explanation:

5x²- 3x+1=0         ax² + b + c = 0

discriminant: b² - 4ac = (-3)² - 4*5 * 1 = 9 - 20 = - 11   (negative)

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3 years ago
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Since the area under the normal curve within two standard deviations of the mean is 0.95, the area under the normal curve that c
alukav5142 [94]

Answer:

X \sim N (\mu ,\sigma)

And for this case we know this condition:

P(\mu-2\sigma

By the complement rule we know that:

P(X< \mu -2\sigma \cup X>\mu +2\sigma) = 1-0.95=0.05

But since the distribution is symmetrical we know that:

P(X\mu +2\sigma) = 0.025

So then the statement for this case is FALSE.

b. False

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

For this case if we define the random variable of interest X and we know that this random variable follows a normal distribution:

X \sim N (\mu ,\sigma)

And for this case we know this condition:

P(\mu-2\sigma

By the complement rule we know that:

P(X< \mu -2\sigma \cup X>\mu +2\sigma) = 1-0.95=0.05

But since the distribution is symmetrical we know that:

P(X\mu +2\sigma) = 0.025

So then the statement for this case is FALSE.

b. False

5 0
4 years ago
9-(1-3y)=4+y-(3-y), find y
astra-53 [7]

Answer:

-7 is the answer!! :) hope this helps

6 0
3 years ago
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