Arocket is divided into three sections. the top section is one-eighth the length of the bottom section. the middle section is one-half the length of the bottom section. the total length of the rocket is 208ft. find the length of the top section.

bottom=128  top=16(128/8)   middle=64(128/2)

128+16+64= 208

b=bottom section

1/8b +8/8b +1/2 b=208

13/8 b=208

multiply both sides by 8/13(opposite of 13/8)

b=128

5   1/4   miles per hour

step-by-step explanation:

15   3/4 / 3 = 5   1/4

step-by-step explanation:

assume that you have 3 different side lengths.   apply the pythagorean theorem here:   square each of the two shortest sides; call them a and b, so that their squares are a² and b².   also square the longest side, calling the result c².

now, if a² + b² = c² is true, the triangle is a right triangle; otherwise it is not a right triangle.