Answer:
y=-3x+31
Step-by-step explanation:
y-y1=m(x-x1)
y-4=-3(x-9)
y-4=-3x+27
y=-3x+27+4
y=-3x+31
Answer:
-15
Step-by-step explanation:
If it fell 3 deg every hour for 5 hours so the equation is 3*5 plus a - sign because it dropped degrees
Answer:
True
Step-by-step explanation:
Two angles form a pair of complementary angles
Answer:
84%
Step-by-step explanation:
21 correct + 4 wrong = 25 questions in total
x 4 = 
= 0.84
0.84 = 84%