Answer:
2
Step-by-step explanation:
It sounds like we are pretending A is the universe. The only numbers in our world are 1,2,3,4, and 5.
You are given B is all numbers greater than 2.
The complement of B would all the elements not listed in B.
The elements in B are 3,4, and 5, since we are looking for numbers greater than 2 in our world of numbers above.
The elements not in B are 1 and 2.
So B complement is {1,2}.
There are 2 elements in our set for B complement. The elements that were counted were just the element 1 and the element 2.
Answer:
The slope intercept form of a line os :y=mx+b where m is the slope and b is the y-intercept.The y-intercept is always where the line intersects the y-axis,and will always appear as (0,b) in co-ordinate form .
Answer:
2 11/12
Step-by-step explanation:
look at the picture
Answer:
Speed in heavy traffic is 32 miles per hour
Step-by-step explanation:
Total distance = 252miles
Total time = 4.5hours = 4 hours + 30minutes
Let the speed in heavy traffic = x
distance = time * speed
First half hour
D1 = 0.5*x
The speed after the traffic = 2x - 5
D2= 4* (2x - 5)
Total distance = D1 + D2
+ 8x - 20 = 252
= 272
x = ![\frac{272}{17}*2](https://tex.z-dn.net/?f=%5Cfrac%7B272%7D%7B17%7D%2A2)
x = 32 miles per hour
When looking for the y-intercept set x=0; and solve for y.