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bixtya [17]
3 years ago
10

Question 1

Mathematics
1 answer:
Elza [17]3 years ago
8 0

Answer:

29

Step-by-step explanation:

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What is the value of cos-1 (-√3/2​
melamori03 [73]

Answer:

Step-by-step explanation:

This question is asking you "what angle gives you a cos of -square root 3/2"? The cosine by definition is the side adjacent to the angle over the hypotenuse.  So set up the right triangle.  We do not know which quadrant we are in since we are not told that, but if the cos is negative, then we are in either QII or QIII.  In QII this is a 150 degree angle, and in QIII this is a 210 degree angle.

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3 years ago
What is at the end of a rainbow? Unscramble the answer to this riddle and explain below. EHT RTTLEE W
icang [17]

Answer:

The Letter W

Step-by-step explanation:

EHT- The

RTTLEE- Letter

W- W

W is at the end of a rainbow.

8 0
4 years ago
Scores on the GRE.
Bogdan [553]

Answer:

Kindly check explanation

Step-by-step explanation:

Verbal:

Score, x = 560

Mean, m = 460

Standard deviation, s = 132

Quantitative :

Score, x = 740

Mean, m = 452

Standard deviation, s = 140

a)

Verbal :

X ~ N(460, 132)

Quantitative :

X ~ N(452, 140)

(b)

What is her Z score on the Verbal Reasoning section? On the Quantitative Reasoning section? Draw a standard normal distribution curve and mark these two Z scores.

Zscore = (x - m) / s

Verbal :

Zscore = (560 - 460) / 132 = 0.758

Quantitative :

Zscore = (740 - 452) /140 = 2.057

(c.)

He has a higher standardized score in the quantitative than the verbal score.

(d.)

The Zscore shows that he performed better in the quantitative reasoning than verbal.

(e) Find her percentile scores for the two exams.

(f) What percent of the test takers did better than her on the Verbal Reasoning section? On the Quantitative Reasoning section?

Verbal :

Score greater than 560

P(x > 560) :

Z = (560 - 460) / 132 = 0.758

P(Z > 0.758) = 0.22423 = 22.4%

Quantitative :

Score greater than 740

P(x > 740) :

Z = (740 - 452) / 140 = 2.057

P(Z > 0.758) = 0.0198 = 1.98%

8 0
3 years ago
Which geometric series represents 0.4444... as a fraction?
Lina20 [59]
The answer is C. 4/10+4/100+4/1000+4/10000. Hope it help!
4 0
3 years ago
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Caroline raises $71.25 and Nate raises $94.28 for a charity at an event. How much more money does Nate raise than Caroline?
MArishka [77]

Answer:

$23.03

Step-by-step explanation:

94.28 - 71.25 = 23.03

6 0
3 years ago
Read 2 more answers
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