8 - 15 means subtract the positive number 15 from 8.
8 - 15 = 8 + (-15) = -7
8 - (-15) means subtract the negative number -15 from 8.
Subtracting a negative number is the same as adding a positive number.
8 - (-15) = 8 + 15 = 23
8 - 15 = -7, and 8 - (-15) = 23. The expressions mean different operations and have different answers.
Answer:
Step-by-step explanation:
favorable events=x
total number of events=x+y
P=(favorable events)/(total number of events)=x/(x+y)
Answer:
the compound inequality that matches the number line is A
Step-by-step explanation:
Answer:
31
Step-by-step explanation:
6(-2)^2 - 3(-2) + 1
6(4) + 6 +1
24 + 6 + 1 = 31
Answer:
The value of the expression = 200
Step-by-step explanation:
The given expression is 
Using the low of exponent 
So, the expression =
<u>So, The value of the expression = 200</u>
