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Andreyy89
3 years ago
10

Help with this math

Mathematics
1 answer:
natima [27]3 years ago
3 0

Answer:

Step-by-step explanation:

6) AC and BE are congruent.

Distance or measurement of AC = 6  

{ for distance we have to see only the absolute value }

Same way, Distance or measurement of BE = 6  

7)   a) J,C,K are co linear b)  B,C,D are co linear c) C,K,L  are co linear

8) CD, CA  are opposite rays.

10) BC, KL are line segments

11) Vertically opposite angles : (i) ∠BCK ,  ∠JCD (ii)  ∠BCJ , ∠KCD

HINT: Ray-  has a beginning point but doesn't have ending point.

Line segment -  has beginning and ending point

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Daniel wanted to know his approximate score on the final exam for his mathematics class. His professor hinted that his score was
Marizza181 [45]

Answer:

The raw score for his exam grade is 99.69.

Step-by-step explanation:

Given : The professor announced that the mean for the class final exam was 88 with a standard deviation of 7. Given Daniel's z score of 1.67.

To find : What is the raw score for his exam grade?

Solution :

The formula use to find the z-score is

z=\dfrac{x-\mu}{\sigma}

Where, z=1.67 is the z-score

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Substitute the values,

1.67=\dfrac{x-88}{7}

1.67\times 7=x-88

11.69=x-88

x=88+11.69

x=99.69

Therefore, the raw score for his exam grade is 99.69.

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