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choli [55]
3 years ago
13

A student took a chemistry exam where the exam scores were mound-shaped with a mean score of 90 and a standard deviation of 64.

She also took a statistics exam where the scores were mound-shaped, the mean score was 70 and the standard deviation was 16. If the student's grades were 102 on the chemistry exam and 77 on the statistics exam, then: a. the student did relatively better on the chemistry exam than on the statistics exam, compared to the other students in each class. b. it is impossible to say which of the student's exam scores indicates the better performance. c. the student did relatively better on the statistics exam than on the chemistry exam, compared to the other students in the two classes. d. the student's scores on both exams are comparable, when accounting for the scores of the other students in the two classes. e. the student did relatively the same on both exams
Mathematics
1 answer:
bogdanovich [222]3 years ago
4 0

Answer:

wow that school has alot of test don't it lol

Step-by-step explanation:

anyway what's the question

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two garden plots are to have the same area. One is square and one is rectangle. the rectangle plot is 4 meters wide and 9 meters
scZoUnD [109]

Answer:

i68 ityty kuy

Step-by-step explanation:

6 0
3 years ago
1. Of the three angles in a right-angled triangle, one angle has a measure
Dmitrij [34]

Answer:

30. A right triangle has one angle that is 90°

All angles add to 180°

180 - 90 - 60 = 30

Step-by-step explanation:

4 0
3 years ago
At noon the temperature was 10 degrees.The temperature dropped 2 degrees every hour for the next 12 hours what was the temperatu
Marta_Voda [28]

Answer:

Therefore,

The temperature at midnight after those 12 hours,

Temperature = -14\°

Step-by-step explanation:

Given:

At noon the temperature was 10 degrees,

After every hour the temperature dropped 2 degrees for the next 12 hours,

Therefore,

For  one hour, Temperature dropped 2 degrees

For  12 hour, Temperature dropped = 2 × 12 = 24 degrees

Initial Temperature = 10°

So, Temperature after 12 hour at midnight,

Final\ Temperature = 10-24 = -14\°

Therefore,

The temperature at midnight after those 12 hours,

Temperature = -14\°

6 0
3 years ago
Can someone help me with these problems?
nirvana33 [79]

Answer:

The answer to your question is:

a) 240 and 300°

b) 120 and 240°

Step-by-step explanation:

You can see the right triangle below (sorry for my handwriting)

I suggest you to memorize the right triangles for 30°, 60° and 45°, they will be very useful.

To solve these questions, you need to work with the right triangle of 60°.

a)

Remember that  sine Ф = opposite side / hyp

             then      sine 60 = √3 / 2   the answer is 60 but it is negative so you need to look for these angles in thtethird and forth quadrangles.

third q = 180 + 60 = 240°    forth q = 360 - 60 = 300°

b)

Work with the same triangle

                   sec Ф = hyp / adjacent side

                   sec 60 = 2 / 1 = 2         the answer is 60°

but as it is negative you have to look for angles in the second and third quadrangle.

They will be 180 -60 = 120°  and 180 + 60 = 240°

8 0
3 years ago
Read 2 more answers
Can I get help solving this ?
Rom4ik [11]

Answer:

x = -1.4

Step-by-step explanation:

Subtract the right side and simplify.

5 - 6(2 - x) - (x - 14) = 0

5 - 12 + 6x - x + 14 = 0 . . . . parentheses eliminated

7 + 5x = 0 . . . . . . . . . . . . . . terms collected

1.4 + x = 0 . . . . . . . . . . . . . . divide by 5

x = -1.4 . . . . . . . . . . . . . . . . . add the opposite of the constant

_____

Check

5 -6(2 -(-1.4)) = (-1.4) -14

5 - 6(3.4) = -15.4

5 -20.4 = -15.4 . . . . . true. Answer checks OK.

6 0
3 years ago
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