What is the value of x? will mark

C) x = 5√3

Step-by-step explanation:

This is a 30°-60°-90° triangle, which means that the sides opposite these angles have the relation of 1-√3-2.

Here, x is the 1, and 15 is the √3. That means that x/15 = 1/√3

Cross-multiply/Means-extremes: 15 = x√3

Divide: x = 15/√3

Simplify: x = (15√3)/3

Simplify: x = 5√3

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.

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,