Four coins are tossed several times. which of the following represents the outcome on a coin that may not be fair?
1st coin is tossed 50 times and gives 24 heads and 26 tails.
2nd coin is tossed 250 times so that p(heads) = 0.25.
3rd coin is tossed 16 times and gives p(tails) = 9/16
4th coin is tossed 25,000 times and gives 12,505 heads.

What is the equation of the following graph in vertex form? parabolic function going down from the left through the point zero comma twelve and through the point two comma zero and turning at the point four comma negative four and going up through the point six comma zero and continuing towards infinity courtesy of texas instruments a: y = (x − 4)2 − 4 b: y = (x + 4)2 − 4 c: y = (x + 2)2 + 6 d: y = (x + 2)2 + 12

In the figure below, segment ac is congruent to segment ab: triangle abc with a segment joining vertex a to point d on side bc. side ab is congruent to side ac which statement is used to prove that angle abd is congruent to angle acd? segment ad bisects angle cab. triangle acd is similar to triangle abd. segment ad is congruent to segment ac. angle cab is congruent to angle cba.

Asap! i'm not good math and i'm lost.