0<x<1 and 0<y<1
x>0 so x is positive and y>0 so y is also positive.
When you multiply two positive numbers you always get a positive number, so the product of x and y must be positive, or greater than 0.
xy>0 - it must be true
xy<0 - it can't be true
Also when you divide a positive number by a positive number you always get a positive number, so the quotient of x and y must be positive.
x/y<0 - it can't be true
D and E can be true, but don't have to. It depends on the values of x and y. If x>y, then x-y>0 is true and x-y<0 isn't true; if x<y, then x-y>0 isn't true and x-y<0 is true.
Therefore, only A <u>must</u> be true.
Answer:
do you want all the answers
Step-by-step explanation:
Answer: 
Step-by-step explanation:
1. To solve the exercise shown in the problem, you must remember that the exponent 5 indicates the number of times 
is used as a factor. Therefore, it is used as a factor five times.
2. Therefore, keeping the information above on mind, you have that you can write the expanded form of 
as following:
The answer is C. 3 to the first power is 3. 3 to the second power is 9. 3 to the third is 27, and so on.
Answer:
k=30
Step-by-step explanation:
The formula for calculating the mean from a frequency table is:
we have
So our equation is
Solving the equation yields:
