Answer:
3x(x^2+3x-5) - factorised
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
Let k be a constant of proportionality. We can use the given information to write two equations:
24 = k/5 and 12 = k/10.
Solving for k gives k = 120 in both cases.
Let R be the unknown resistance when the current is 15 amperes:
15 = 120/R.
R = 120/15
R = 8 ohms.
Answer:
(C) 
Step-by-step explanation:
Answer:
86
Step-by-step explanation: