Answer:
C 0 solutions
Step-by-step explanation:
8x+47 = 8(x+5)
Distribute
8x+47 = 8x+40
Subtract 8x from each side
47 = 40
This is never true so there are no solutions
7x - 3y = 24
7x - 24 = 3y
(7x - 24) : 3 = y
Answer:
12% decrease
Step-by-step explanation:
50 - 44 = 6
6/50 = 0.12 or 12% decrease
Tan(a/2) = sin a / (1 + cos a)
tan(45/2) = sin(45) / (1 + cos(45)) = (1/√2) / (1 + 1/√2) = (1/√2) / (√2 + 1)/√2 = 1/(√2 + 1) = (√2 - 1)
Answer:
46.6 mph
Step-by-step explanation:
1 Kph is .6213 mph
