7. On a breezy day, a student decides to fly a kite. When the kite takes flight, it ascends with an angle of elevation of 75°. If the kite is moving horizontally away from the student at a rate of 0.21m/s, calculate the
length of string that is released after 1 minute and 40 seconds. (Draw a diagram first, then show your
work for the calculations required.)

answer: 1722

step-by-step explanation:

given: the mass of saturn=

the mass of mercury=

the number of times the mass of saturn is greater than the mass of mercury

hence, the mass of saturn is 1722 times greater than the mass of mercury.

i believe your answer is 99.7% of 7-year-old children are between 46.6 inches and 49.5 inches tall.

answer: 0.64

step-by-step explanation:

step-by-step explanation:

we have

using a graphing tool

see the attached figure

this is a quadratic equation (vertical parabola) open up

the vertex is a > vertex

the domain of the function is all real > interval (-∞,∞)

the range of the function is the > [-6.125,∞)

the function has two x->   and

the function is increasing over the > (0.25,∞)

the function is decreasing over the > (-∞,0.25)