I'd say there's a 50-50% probability
Length=16
Width=8
8×2=16. 8+8=16. 16+16+16=48
2x^2 + 17x -21 cannot be factored nicely, if it was +21 you could, but the zeros for this have to gotten using the quadratic equation
-b +/- (b^2-4ac)^1/2
2a
so
-17 +/- (17^2-4(2)(-21))^1/2
2(2)
-17 +/- (457)^1/2
4
so the zeros are roughly 1.094 and -9.594
Answer:
Step-by-step explanation:
Keep in mind that the tangent function is negative in Quadrants II and IV.
Of the three possible answers, the 2nd is invalid because the tangent is positive in Q III.
If the reference angle were in Quadrant II and had the value 30° (second possible answer), then the opposite side would be +1, the adjacent side -√3 and the hypotenuse 2. Based on this, the tangent of theta would be opp / adj, or +1 / (-√3) or -√3/3. This is correct.
Answer:
A & B
Step-by-step explanation:
15/20 is not equal
6/8 is not equal
30/50 is equal
12/20 is equal