Whoever answer this question I will mark brainliest pls I need help 1.Given that ∆DEF ≅ ∆ZXY,
and
. Find 2.An iron rod 5m long is placed against the wall in such a way that the foot
of the rod is 3m away from the wall. Find how high the top of the iron rod
reaches in the wall?
3.Name the triangle in which two altitudes of the triangle are two of its
sides.

Simply 8x squared + 5(7x squared- x) - 2x =

3.17 scores on stats final. below are final exam scores of 20 introductory statistics students. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 57, 66, 69, 71, 72, 73, 74, 77, 78, 78, 79, 79, 81, 81, 82, 83, 83, 88, 89, 94 (a) the mean score is 77.7 points. with a standard deviation of 8.44 points. use this information to determine if the scores approximately follow the 68-95-99.7% rule. (b) do these data appear to follow a normal distribution? explain your reasoning using the graphs provided below.

Charlie tosses five coins. what is the probability that all five coins will land tails up.