Answer:
20 people only buy dvds.
Step-by-step explanation:
There are two groups in this problem. One group of people that buys dvds and one that buys blu rays. The total amount of people who buy blu rays is 300, but there's an intersection between the groups and the size of this is 280 people who actually buy both. In order to find out how many people only buy DVDs we first need to figure out how many only buy blu-rays. That is:
people who only buy blu rays = people who buy blu rays - people who buys blu rays and dvds
people who only buy blu rays = 300 - 280 = 20
We can now calculate the amount of people who only buy dvds and that is:
people who only buy dvds =total amount of people - ( people who only buy blu rays + people who buy both)
people who only buy dvds = 320 - (20 + 280) = 320 - 300 = 20 people
No, because if it was 2 gal. per min., then the first coordinates would be (1,2)
1. Let the given line be the graph of function f.
2. Let g be the inverse function f.
3. If f(a)=b then g(b)=a. So if point (a, b) is on the original line, point (b, a) will be on its inverse.
4. Take a look at the choices we have.
In A, the first point is (-2, -11), which means that in the line we should have (-11, -2). Clearly we don't.
In C, point (-11, 2) tells us that we should have point (2, -11) in the line, but clearly 2 is matched to a value close to -1
In D, (2, -11) indicates that (-11, 2) is in the lone, but is not even close.
ANSWER: B
check: All (-2, 11), (-1, 8), (0, 5), (2, -1) are in the given line
Answer:
C.
Step-by-step explanation:
Choice A:
Choice B:
appears exactly the same as choice A simplified.
Choice C:
is not the same as A or B since x doesn't have power 4 and y doesn't have power 2.
Choice D:
is the same as A and B.
So the only odd ball is C.
Answer: That'll be 25.
Step-by-step explanation:
5 + 20 = 25
