Answer:
let missing number be x
63/21=9/x
or. 63x=9*21
or 63x=189
or x=189/63
or x=3
. missing number of this proportion=3
Answer:
slope: -1
y-intercept: 6
Step-by-step explanation:
y-intercept is when x is 0 so it's 8 and the slope can be found using the slope formula (y2-y1)/(x2-x1)
(6-8)/(0 - (-2)) = -2/2 = -1
Answer:
A. can trace a particular file in a few seconds.
Step-by-step explanation:
The new locator has now easy access and user friendly. The data saved here is useful when you are locating a file. It will take few seconds to locate a file. This saves time in finding the relevant files. The new locator is user friendly and is not really technical to operate it.
Answer:
Line AB is Perpendicular to line CD
Line AB Parallel to line EF
Answer:
is a subset of 
Step-by-step explanation:
Required
Difference between subset and proper subset
To answer this question, I will use the following illustration.
In the above sets, set B is a proper subset of set A because all elements of B can be found in A, but not element of A can be found in B.
Set C is a subset of A because 
Using the above illustration, we have:
and
is a subset of , because 5 and 8 are in but 2 which ca be found in is not in
