Answer:
top right and bottom left
Step-by-step explanation:
im in precal and if i get this wrong i am so sorry
but im pretty sure those r what increasing graphs look like as the increase in a positive direction
hope this is correct and helps :)
sin(2x)/cos x = 2sin x*cos x/ cos x = 2 sin x = 2
sin x = 1
x = pi/2
but cos pi/2 = 0
so the given equation is indeterminate for x = pi/2
Answer:
x = 21
Step-by-step explanation:
The angle T is an exterior angle to the ∆RST, so will be equal to the sum of the remote interior angles:
T = 4x° +2x° = 6x°
T is also a same-side exterior angle with the one marked 54°, so is supplementary to that:
T + 54° = 180°
6x° + 54° = 180°
x + 9 = 30 . . . . . . . . divide by 6
x = 21 . . . . . . . . . . . . subtract 9
_____
<em>Check</em>
The triangle angles are ...
4x = 84°
2x = 42°
unmarked = 54°
Their sum is 84° +42° +54° = 180° . . . as it should be.
Answer:
A, B, C are correct
Step-by-step explanation:
m∠T is the complement of ∠C, so is 90° -16.7° = 73.3° . . . matches C
The lengths of the sides are ...
t = a·cos(16.7°) = 49·0.957822 ≈ 46.93 . . . matches B (not D)
c = a·sin(16.7°) = 49·0.287361 ≈ 14.08 . . . matches A