What is the quadratic equation whose roots are 2 and \( \frac{-1}{2} \)?
2x2 − 3x − 1 = 0
2x2 − 3x − 3 = 0
2x2 − 3x − 2 = 0
2x2 − 3x − 4 = 0
In a triangle PQR, ∠P = 30° and the straight line TV is drawn parallel to QR, intersecting PQ at S and PR at T. Which of the following is always true?
A) \( \frac{PS}{PQ} \) = \( \frac{PT}{PR} \)
B) ST = \( \frac{QR}{2} \)
C) The triangle PST is similar to the triangle PQR.
Only (a) and (c)
Only (a) and (b)
All of (a), (b) and (c)
Only (a)
The ratio of 93.5 : 35 is the same as: