If y = 5x2 – 3x + k does not hit the x-axis, then what is/are the value(s) of k?

9514 1404 393

  k > 9/20

Step-by-step explanation:

If the parabola does not touch the x-axis, the discriminant is negative. That means ...

  b^2 -4ac < 0

  (-3)^2 -4(5)(k) < 0

  9 < 20k . . . . . . . . . add 20k

  k > 9/20 . . . . . . . . .divide by 20

Discriminant  |  D < 0 (Because doesn't intercept any x-values)

Therefore, the value of k must be greater than 9/20

so k > 9/20

$3,200 x 7.25% = $3,200 x .0725 = $232 interest monthly

$232 monthly x 12 annual = $2, 784

step-by-step explanation:

2,160 π

step-by-step explanation: