What is the probability of flipping a coin and having heads land up five times in a row

a 1/32
b 1/16
c 1/10
d 1/2

If the altitude is drawn to the hypotenuse of a right triangle, then the two triangles formed are similar to the original triangle and to each other. which set of triangles shows the similar triangles created by the altitude in the diagram?

Aline is perpendicular to another line m2= (-1/m1), where m1 is the slope of the original line and m2 is the slope of the perpendicular line. which of the following equations represents the line that passes through the point (-2,1) and is perpendicular to the line below?

The actual length of side t is 0.045cm. use the scale drawing to find the actual side length of w