This does not appear to be a right triangle. However, we know 2 sides and the included angle, so can find the unknown side length. Let x represent this length. Then:
x^2 = (9 m)^2 + (12 m)^2 - 2(9m)(12 m)*cos 30 degrees, or
x^2 = 81 + 144 - 216(sqrt(3) / 2). Please solve for x^2 and then solve the result for x, making sure to choose the positive value. The result will be the length of the side opposite the 30 degree angle.
With 1 of 3 angles known, and 3 of 3 sides known, you can use the Law of Sines to find the other two angles. As a reminder, the Law of Sines looks like this:
a b c
-------- = --------- = ----------
sin A sin B sin C.
You can give the 30-deg angle any name you want; then a, the length of the side opposite the 30-deg angle, which you have just found. And so on.
He answer is around 385 I believe??? Im not positive if thats what u wanted or not.
Answer:
(2y−1)(y−7)
Step-by-step explanation:
1) 2y^2-y-14y+7
2) y(2y−1)−7(2y−1)
3) (2y−1)(y−7)
Multiplying and dividing integers with the same sign and different signs.
When multiplying and dividing with the same sign, the answer will always be positive.
6/3 = 2
-6*-3=18 (Two negatives make a positive)
-4/-2=2 (This is because there are two -2s in -4, so the answer will always be positive- also two negatives make a positive.)
When multiplying and dividing by different signs, the answer will always be negative.
3*-6= -18
4/-2 = -2
Because the answer will always by negative, you can multiply or divide normally and then just add the negative sign (-) in front of the answer.
306/2 = 153*2 = 306
153/3 = 51*3 = 153
51/3 = 17*3 = 51
2,3,3,17 = all prime numbers.
306 = 2*3*3*17
