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3 years ago

Each correct answer is worth 134 points, and each incorrect answer is worth −14 points.

Mathematics

2 answers:

ElenaW [278]3 years ago

7 0

Answer:

Nevan scores 7464 points total.

Step-by-step explanation:

You multiply 58 x 134 to find out how many points he got for the correct answers. He got 7772 points.

You multiply -14 x 22 to find out how many points he lost for the incorrect answers. He lost -308 points.

Subtract 7772-308 to find the total amount of points Nevan has now. He has 7464 points.

Note:

To find out if he won or not I would need a specific number to compare his points with. This is why my answer doesn't say whether he won or not.

nlexa [21]3 years ago

5 0

Answer:

He scores 7464 points

Step-by-step explanation:

58x134= 7772

22x(-14)= -308

7772-308= 7464

Hope this helps :D

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What are the measures of two complementary angles if the difference in their measures is 18?

saw5 [17]

Complementary angles = 90°
x= angle 1
(90-x)= angle 2

Subtract the two angles to get the difference between them (18°).

(90-x) - x= 18
combine like terms

90 - 2x= 18
subtract 90 from both sides

-2x= -72
divide both sides by -2

x= 36° angle 1

Substitute answer in to find angle 2:
=90 - x
=90 - 36
=54° angle 2

Hope this helps! :)

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3 years ago

About 3% of the population has a particular genetic mutation. 600 people are randomly selected.

Annette [7]

Answer:

Standard deviation for the number of people with the genetic mutation = 4.178

Step-by-step explanation:

Explanation:-

Given random sample size 'n' =600

proportion of the Population 'p'=3% or 0.03

Let 'X' be the random variable in binomial distribution

Mean of the binomial distribution

μ = n p

= 600 X 0.03

= 18

Mean of the binomial distribution ' μ ' =18

Standard deviation of the binomial distribution

σ = $\sqrt{npq} = \sqrt{600 X 0.03 X 0.97} = \sqrt{17.46} = 4.178$

Conclusion:-

Standard deviation for the number of people with the genetic mutation = 4.178

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Answer:

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Step-by-step explanation:

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