Answer:
The mean score is 87
Step-by-step explanation:
79x2=158
158-71=87
Answer: D:{8,-6,2,0}: R:{5,-9,5,-8}
Explanation:
The domain is x and the range is y, so I'll go through each coordinate;
(8,5) domain=8; range=5
(-6,-9) domain=-6; range=-9
(2,5) domain=2; range=5
(0,-8) domain=0; range=-8
So the answer is D:{8,-6,2,0}: R:{5,-9,5,-8}
Answer:
x=90 y=45
Step-by-step explanation:
Answer is C
y and 45 are vertical angles
x=90 (right angle)
Answer:
54
Step-by-step explanation: