STD 10 maths

If the roots of the equation 9x2 – (2k – 5)x – 25 = 0 are additive inverse ( opposite),

then k = ………… .

(a) 0 (b) 1 (c) -5/2 (d) 5/2​

Which of the following lines does not intersect the line y=-2x+3 ? a) y=2x b) y=2x-3 c) y=2x+3 d) y=-2x-3

What is the explicit formula for this sequence? -7, -4, -1, 2, a.) an = 8 + (b - 1)3 b.) an = -7 + (n - 1)3 c.) an = 3 + (n -1) (-7) d.) an = -7 + (n - )

Give me the equations of two lines that have the same slope but are not parallel.