Answer: A= 42 degrees
Step-by-step explanation:
A= 180-90-48=42 (degrees)
The answer to your question is D
Answer:
he needs to get a 91 to have a mean score of 90
Step-by-step explanation:
add up all the known scores to get 629
let 's' = lowest test score
(629 + s) ÷ 8 = 90 [we divide by 8 because there are 7 known and 1 unknown score)
cross-multiply to get:
629 + s = 720
s = 720-629
s = 91
It's not c so it mite be eather b or a I would say its b