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Serga [27]
3 years ago
14

Test scores are normally distributed with a mean of 100 and a standard deviation of 15. An individual score is found to

Mathematics
1 answer:
-BARSIC- [3]3 years ago
6 0

Answer:

Because the boundary value is less than the mean, you automatically know the z score will be negative.

z = (x - mu)/sigma = (90 - 100)/15 = -10/15 = -2/3 = -.67

Step-by-step explanation:

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I still dont understand slope can someone help?
katen-ka-za [31]

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2 years ago
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Write each improper fraction as a mixed number. 9/4. 8/3. 23/6. 11/2. 17/5. 15/8. 33/10. 29/12.
yanalaym [24]

Aloha~! My name is Zalgo and I am here to provide a bit more knowledge to you today. The following Improper Fractions have been changed into Mixed Numbers (and also into decimals because I like Math :3):

  • 9/4 - 2.25 - 2 4/1
  • 8/3 - 2.67 - 2 2/3
  • 23/6 - 3.83 - 3 5/6
  • 11/2 - 5.5 - 5 1/2
  • 17/5 - 3.4 - 3 2/5
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  • 33/10 - 3.3 - 3 3/10
  • 29/12 - 2.416 - 2 5/12

I hope that this info helps! :D

"Stay Brainly and stay proud!" - Zalgo

(By the way, can you mark me as Brainliest? I'd greatly appreciate it! Mahalo~! XP)

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3 years ago
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Please answer this multiple choice question, will give brainliest!!
Kamila [148]

Answer:

C. 4.3 cm

Step-by-step explanation:

Since it is a right triangle you can use a²+b²=c² to solve this. Then you subtract 2 from the AC to get AD.

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What is the result if you divide 18r4 s5 t6 / -3 r2 st3 ?
coldgirl [10]
The answer for the given above is letter "a, -6r2s4t3". This is obtained by dividing 18 by -3 and subtracting the exponent below with that from above of the same variable. For r, subtract 2 from 4 to get 2. For s, subtract 1 from 5 to get 4 and lastly for t, subtract 3 from 6 to get 3. 
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At combs store there is a 25% chance a customer enters the store within one minute of closing time. Describe the complementary e
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The complementary event is that a customer does not enter the store within one minute of closing, and the probability is 75%.

The complement is found by subtracting from 100%; 100-25 = 75%.
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3 years ago
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