P = principal (initial amount), r = rate of interest, and t = time
So, A = 3000(1+0.025)^4
Answer: $3,311.44 (approximately)
(0, -6) (0, 6) . I’m pretty sure that that’s the answer. For things like this, I suggest downloading Photomath. It would solve it in seconds.
It is B because have you do 160+77-x=180 you would add the like terms 160+77=237 and then subtract 180 from 237 and you get 57 for x and when you plug that in 160+77-57 77-57=20 and 20 plus 160 is 180 so The answer is B)No of these
A double digit of the same number.
Step-by-step explanation:
cos(3x) − 3 cos x = cos(2x) + 1
Use triple and double angle formulas.
(4 cos³x − 3 cos x) − 3 cos x = (2 cos²x − 1) + 1
Simplify.
4 cos³x − 6 cos x = 2 cos²x
4 cos³x − 2 cos²x − 6 cos x = 0
2 cos³x − cos²x − 3 cos x = 0
Factor.
cos x (2 cos²x − cos x − 3) = 0
cos x (cos x + 1) (2 cos x − 3) = 0
Solve.
cos x = 0 → x = 90°, 270°
cos x + 1 = 0 → x = 180°
2 cos x − 3 = 0 → no solution