Answer:
C
Step-by-step explanation:
Given
x³ + 3x² + 3x + 9 ( factor first/second and third/fourth terms )
= x²(x + 3) + 3(x + 3) ← factor out (x + 3) from each term
= (x² + 3)(x + 3) → C
Supplementary angles sum to 180 degrees.
So if one angle is 20 degree more than the other...
x+(x+20)=180
2x+20=180
2x=160
x=80
x+20=100
answer: 80° and 100°
For the answer to the question above, I'll provide a solution to my answer below.
(4 / 5) + (3 / x) = (1/2)
<span>x cannot equal 0 </span>
<span>(4x + 15) / 5x = 1/2 </span>
<span>2(4x + 15) = 5x </span>
<span>8x + 30 = 5x </span>
<span>3x = -30 </span>
<span>x = -10
</span>I hope my answer helped you. Feel free to ask more questions. Have a nice day!
The answer is C. 168 unlimited-ride passes were sold
u+e=282
50u+20e=10,680
______________
-20u-20e=-5640 need to multiply first equation by -20 to eliminate 20
5u+20e=10,680
_____________
30u+0= 5040
30u=5040 now divide by 30
u=5040/30
u=168
