Mathematics, 25.01.2020 12:31 kevonmajor
If 20 coins are tossed, find the probability that they'll all land on tails.
Answers: 2
Mathematics, 20.06.2019 18:04
Here is their argument. given the obtuse angle x, we make a quadrilateral abcd with ∠dab = x, and ∠abc = 90◦, and ad = bc. say the perpendicular bisector to dc meets the perpendicular bisector to ab at p. then pa = pb and pc = pd. so the triangles pad and pbc have equal sides and are congruent. thus ∠pad = ∠pbc. but pab is isosceles, hence ∠pab = ∠pba. subtracting, gives x = ∠pad−∠pab = ∠pbc −∠pba = 90◦. this is a preposterous conclusion – just where is the mistake in the "proof" and why does the argument break down there?
Answers: 2
Mathematics, 21.06.2019 15:00
In which figure is de bc ? a. figure 1 b. figure 2 c. figure 3 d. figure 4
Answers: 1
Mathematics, 21.06.2019 15:00
The inside wheels of a car traveling on a circular path are rotating half as fast as the outside wheels. the front two wheels are six feet apart. what is the number of feet in the path traced by the inside front wheel in one trip around the circle? express your answer in the form "k \pi", where k is an integer.
Answers: 3
Mathematics, 21.06.2019 15:50
If you shift the linear parent function, f(x)=x, up 13 units, what is the equation of the new function?
Answers: 1
If 20 coins are tossed, find the probability that they'll all land on tails....
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