Answer:
2(g-2)(2g+9)
Step-by-step explanation:
common factor = 2
2g^2+5g-18
(g-2)(2g+9)
Answer:
Law of Cosines
In trigonometry, the law of cosines relates the lengths of the sides of a triangle to the cosine of one of its angles
Answer:
2/7-5/7=-3/7
2-1= 1
y=-3/7x
Equation for a circle
r^2 = (x - h)^2 + (y - k)^2
where r = sqrt[ (-2 - (-10))^2 + (-5 - (-20))^2]
sqrt[ (8)^2 + (15)^2 ]
sqrt[ 64 + 225 ]
= sqrt[289] = 17
equation for a circle
17^2 = (x - (-2))^2 + (y - (-5))^2
17^2 = (x + 2)^2 + (y + 5)^2
Answer:
720/1681
Step-by-step explanation:
First quadrant so everything is positive for a trig function of just the angle. I would suggest just drawing a right triangle using tan(x)=40/9 (opp/adj). Find the hypotenuse which is sqrt(40^2+9^2)=sqrt(1600+81)=sqrt(1681)=41. So sin(x)=40/41 and cos(x)=9/41.
Therefore sin(2x)=2sin(x)cos(x)=2(40/41)(9/41)=720/1681