Use a compound angle formula to develop an equivalent expression for cos3x and use that expression to solve the equation 2cos3x+cos2x+1=0 on the interval 0x2.. Express your answer(s) as exact radians and approximate radians rounded to two decimals where applicable. Show your work. **HINT** express everything in terms of cosx.

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.

sorry can't

step-by-step explanation:

i googled though and something came up but it was in science langueage not common english sooo

theres no picture: /

step-by-step explanation:

30 people weigh 160 pounds or more