F(a) = -2a^2 - 5a^4
if a=-3
f(-3) = -2(-3)^2 - 5(-3)^4
= (-2*9) - (5*81)
= -18 - 405
= 423
Answer:
30°
Step-by-step explanation:
<u>Angles and Quadrants:</u>
- 0° to 90° -- Quadrant 1
- 90° to 180° -- Quadrant 2
- 180° to 270° -- Quadrant 3
- 270° to 360° -- Quadrant 4
<u>Formula for Reference Angle in each Quadrant:</u>
<em> is the angle given</em>
- Quadrant 1 -- Reference Angle =
- Quadrant 2 -- Reference Angle =
- Quadrant 3 -- Reference Angle =
- Quadrant 4 -- Refence Angle =
Angle given is 150°, which according to first table, falls in Quadrant 2.
According to second table, the reference angle is found by subtracting 150° from 180°.
Reference Angle = 180° - 150° = 30°
<span>Answer:
Since X is the midpoint, you know WX=XY and VX=XZ (given to you in the problem statement)
When you draw your line segments, label the five points W,X,Y,V and Z
Now also draw line segments WV and ZY.
You now have two triangles.
The angle zxy = wxv since opposite angles are equal.
Given the above, you now have 2 triangles that are congruent using side-angle-side
Since the two triangles are congruent, then the sides opposite the angle x (WV and ZY) must be equal.</span>
Answer:
I am positive that it is A. 0.02
Answer:b
Step-by-step explanation: because if you subtract 44,640 minus 43,200 which equal 1440
44,640-43,200=1,440