All it takes for a relation to be a function is for each possible first number of a pair there's only one possible second number.
So if any of the sets has two pairs with the same first number, that one's not a function.
The last one has (3,2) and (3,5) so isn't a function.
Answer:
t2=8/5
Step-by-step explanation:
using this formula
t1/s1 =t2/s2
4/5=t2/2
cross multiply
5t2=8
t2=8/5
Answer: Second equation should be x/10 = 12/16
Step-by-step explanation:
Everything is right except that x=12 and 10=16
Answer:
w = 7 inches
Step-by-step explanation:
length = n
width = n/2
Perimeter = 2n + 2(n/2)
42 = 2n + n
42 = 3n
n = 14
width = 14/2 = 7
Answer:
4
Step-by-step explanation:
1. (3x2)= 6
2. 6-6=0
3. 0+4 = 4
You just use PEMDAS.
