Complete Question
The complete question is shown on the first uploaded image
Answer:
The score of the student is x = 779.42
Step-by-step explanation:
Generally we can mathematically represent the z-score as

Here x is the score of the student
substituting 1045.7 for the Mean, 221.9 for the stDev and -1.2 for z we have

=> 
=> x = -266.28 + 1045.7
=> x = 779.42
Answer:
-9 = a
Step-by-step explanation:
Divide both sides by -4 to isolate a: a = -36/4 = -9 = a
Answer:
72/18=4
Step-by-step explanation:
Use the FOIL method.
2x * x + 2x * 6 + -9 * x + -9 * 6

Combine like terms.

<u>Answer</u>

For america it's Fahrenheit
for most of the rest of the world it is Celsius