Answer:
(-3,-2)
Step-by-step explanation:
If you draw a line across from Point A to -3, and a line down from Point P to -2, you get the point (-3,-2) and a right triangle.
Answer:
all three on the bottom
Step-by-step explanation:
Answer:
Step-by-step explanation:
Use the rules of indices to find the product.
One of the rules is that when we multiply indices that have the same base we add the powers. For example:
So to work out 
we need to follow this rule.
Let's expand the bracket:
Let's simplify keeping in mind the rule we know.
- remember that 
Answer:
The mean of the samples is 21
Step-by-step explanation:
Mean is defined as the average sum of numbers i.e total sum of given numbers divided by the total number.
Given the randomly selected numbers as shown;
7, 100, 1, 3, 7, 10, 15, 12, 17, 38
Total sum of numbers = 7+ 100 + 1 + 3 + 7 + 10 + 15 + 12 + 17 + 38
= 210
Total numbers given = 10
Mean = 210/10
Mean = 21
It could include all real numbers, really. If you have +$130 you could use them to pay for something. If you have -$27.5 you need to pay this sum to the bank, since you overused your credit.
