270 Which point is not on the graph represented by
y=x²+2x– 6?
1) (-6,12)
2) (4, -2)
3) (2,4)
4) (3,-6)

The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed

Given: m∠ adb = m∠cdb ad ≅ dc prove: m∠ bac = m∠bca lol

Solve each equation using the quadratic formula. find the exact solutions. 6n^2 + 4n - 11