Add the three angles and set them to 180
4x-13+15+x+18=180
5x+20=180
5x=160
x=32
Then plug in to get A and C
A=4*32-13
A=115
C=32+18
C=50
Answer:
Slope? If so it is 13/-6
Step-by-step explanation:
Use y1-y2/x1-x2
Answer:
En este caso 70 ° y 20 ° son complementarios porque 70° + 20° = 90°.
Más ejemplos podrían ser 47° y 43°, ya que 47° + 43° = 90°, 30° y 60°, 45° y 45° , etc.
Dos ángulos son suplementarios si su suma forma un ángulo llano, es decir, 180°.
<span>25x^2 − 144
(5x - 12) (5x + 12)
</span>
Answer:
B.
Step-by-step explanation:
If f(-x)=f(x), then f is even.
If f(-x)=-f(x), then f is odd.
To determine if f(x)=3x^4+5x^2+1 is even or odd plug in -x like so:
f(x)=3x^4+5x^2+1
f(-x)=3(-x)^4+5(-x)^2+1
f(-x)=3x^4+5x^2+1
f(-x)=f(x)
So f is even.
You should keep in mind the following:
(-x)^odd=-(x^odd)
(-x)^even=x^even
Examples:
(-x)^81=-(x^81) since 81 is odd
(-x)^10=x^10 since 10 is even
Anyways, the student is right and f(-x)=f(x).
