Answer:
The person above is right, and deserves brainliest.
31 Is the correct answer
ED2021
Z = (score - mean)/sd
-1.75 = (x - 38)/4
Multiply both sides by 4:
-7 = x -38
Add 38 to both sides:
x = 31
He scored a 31 points on the exam
57 for the third side
Step-by-step explanation:
a = √(c² - b²)
Answer: I don’t understand?