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AnnZ [28]
3 years ago
14

Amanda earned a score of 940 on a national achievement test that was normally distributed. The mean test score was 850 with a st

andard deviation of 100. What proportion of students had a higher score than Amanda? Use your z table
Mathematics
1 answer:
yawa3891 [41]3 years ago
3 0
The answer is 0.806 I believe. The whole process was far too much to type onto hear because I don't want you to be reading an essay if you're in a hurry.
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PLZZZZZZ HELP!!!!! WILL MARK U AS BRAINIEST FOR BEST ANSWER!!!!! IT HAS TO BE AN LETTER !!!!!
QveST [7]

All you have to do is write like five sentences to your future self??? That doesn't even require brainpower my dude.

"Hey future me! Hope you're doing well. I wonder what I'm like? Maybe I have a cool job. Maybe I won the lottery!!! I just want you to know that if times are hard, you're gonna get through it because you are a tough cookie. YES YOU!

sincerely,

you"

easy as that lol

4 0
3 years ago
What is the sum of the interior angles of an octagon?<br> 720°<br> O 900°<br> 1,080°<br> 1,260°
timofeeve [1]

Answer:

1080

Step-by-step explanation:

All sides are the same length (congruent) and all interior angles are the same size (congruent). To find the measure of the angles, we know that the sum of all the angles is 1080 degrees (from above)... And there are eight angles... So, the measure of the interior angle of a regular octagon is 135 degrees

7 0
3 years ago
Read 2 more answers
How can you tell if a situation is linear from a table?
monitta

Answer:

Step-by-step explanation:

If each successive y value is the same distance above the previous y value, the situation is linear.

4 0
3 years ago
Read 2 more answers
Sergio is s years old. which expression shows how old he will be 7 years from now? question 5 options: 7s 7 – s s 7 7s 7
notsponge [240]
S+7. Tell your teacher never to use s as a variable ever again.
8 0
3 years ago
Given that f(x)=x^2-4x -3 and g(x)=x+3/4 solve for f(g(x)) when x=9
SSSSS [86.1K]

Answer:

f(g(9)) = 945/16

Step-by-step explanation:

To find f(g(x)), you have to substitute g(x) wherever there is an x in f(x).

g(x) = x + 3/4

f(x) = x² - 4x - 3

f(g(x)) = (x + 3/4)² - 4(x + 3/4) - 3

f(g(x)) = x² + 3/2x + 9/16 - 4x + 3 - 3

f(g(x)) = x² - 5/2x + 9/16 + 3 - 3

f(g(x)) = x² - 5/2x + 9/16

Now, put a 9 wherever there is an x in f(g(x)).

f(g(9)) = (9)² - 5/2(9) + 9/16

f(g(9)) = 81 - 5/2(9) + 9/16

f(g(9)) = 81 - 45/2 + 9/16

f(g(9)) = 117/2 + 9/16

f(g(9)) = 945/16

7 0
3 years ago
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