Find the lowest common multiple of 3 and 5, that is 15
the lights will blink together every 15 seconds
in 1 minute blink together
= 4 times
that is at 15, 30, 45 and 60
2x^3(x+7)(x-7)
Thats the answer for your question!
Answer:
B.
Step-by-step explanation:

Marginal profit, P(x) = R(x) - C(x)
P(x) = x³ - 5x² + 7x + 10
x³ - 5x² + 7x + 10 = 0
If you solve it, you get x = -0.839 where P(x) is zero
Answer:
Option A and D
Step-by-step explanation:
straight lines AI, PR, CT intersect each other at a point k.
Opposite or vertical angles are,
1. ∠ AKC and ∠ TKI
2. ∠ IKR and ∠ AKP
Therefore, options (A) and (D) are the correct options.