i would have to say d it is the only one that makes ant scencs
Answer:
1. Not possible
2. Possible
3. 24
4. C
5. D
Step-by-step explanation:
Some key concepts to remember:
- One -to -one means each element has an element only it matches to. This is only possible when sets have the same number of elements. #1 doesn't but #2 does.
- To determine the number of one-to-one correspondence, use a factorial with the number of elements. 4 is the number and the factorial is 4! = 4*3*2*1 = 24.
- n(A) means the cardinal number of the set or the number of unique elements. Elements count only once even if they repeat. There are 5 in #4 and 12 in #5.
1. They are all rational except √37 and √12.
2. B
3. square's side length = √(2^2 + 5^2) = √29
So side length is between 5 and 6.
p = 4x + 3y
x = 5
y = -2
Plug in values of x and y.
p = 4(5) + 3(-2)
p = 20 - 6
p = 14
<h3>The value of p is 14.</h3>