Consider a lifeguard at a circular pool with diameter 40 meters. He must reach someone who is drowning on the exact opposite side of the pool, at position . The lifeguard swims with a speed 2 meters/second
and runs around the pool at speed of 6 meters/second. Find at what angle
the lifeguard should swim to reach the drowning person in the least amount
of time.

NOTE: You will need two facts from geometry: 1) Central Angle Theorem
(also known as Inscribed Angle Theorem), which tells you that if is the
center of the circle above, then the angle ∠ has measure 2; 2) The
formula for the arclength of a segment of a circle.

solution:

as, mean is defined as sum of all the observations divided by total number of observations.

and , median is mid value of the data whether arranged in ascending order or descending order.

consider, roadsters:

2,3,4,5,6,7,8,9

mean =

also, median= , because number of observations is even, so median is mean of two mid values.

now, coming to bandits

2,3,4,5,6

mean =  

median = 4, as number of observations is odd.

so, roadsters has greater median as well mean than bandits.

→option a is true about the repairs performed on 2 types of cars:

bandits have lower median and mean than roadsters.

f(x) is going down by 4

step-by-step explanation:

(its either that or its going left by 4)

because linear equations are a lot simpler than quadratics equations, and linear equations formula is a lot easier to memorize. that's why i think they're harder.

drop out of school or go to quizlet, quizlet is better

step-by-step explanation: