Answer:
2(x-5)(x+9)
Step-by-step explanation:
1) divide whole thing by 2 you get x^2+4x-45
2) from there you can factor it out to (x-5)(x+9)
3) Add the 2 back in on the front
Answer:
C
Step-by-step explanation:
We know a straight angle is 180 degrees ( a straight line).
Looking at the figure, we can say that A + F + E = 180 (since it creates a straight line).
We know A = 45, E = 85, plugging these into the equation, we can solve for F:
A + F + E = 180
45 + F + 85 = 180
130 + F = 180
F = 180 - 130
F = 50
Answer choice C is right.
Supplementary angles are angles whose sum is equal to 180°.
Let one angle be x
The other angle is said to be 26°more than the other so it is x + 26
x + (x+26) = 180
x + x + 26 = 180
2x = 180 - 26
2x = 154
x = 154/2
x = 77
1st angle, x, is equal to 77°
2nd angle, x + 26°, is 77° + 26° = 103°
77° + 103° = 180°
180° = 180°