Sam claims that cos x=sin y if x and y are congruent angles. is sam correct?

No

Step-by-step explanation:

cosx = siny only if x = y = 45°

Otherwise

cosx° = sin(90 - x)°

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.

answer: i think one of the answer is $150 and $300?

step-by-step explanation: