I have no idea on this. I failed everyone of these on my last exam and assignment.
Compute as indicated.
7 (-7) -7 (2-3)/ 2(-6+9)
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You may need to type it.
Compute as indicated.
7 (-7) -7 (2-3)/ 2(-6+9)
The numerator:
7 (-7) -7 (2-3)
-49 - (-7 * -1)
-49 - 8 = 41
Denominator:
2(-6+9)
2 * 3 = 6
7 (-7) -7 (2-3)/ 2(-6+9) = 41/6 = 6 5/6
Note: When you multiply a negative and a positive number, the answer will be negative. Two negatives multiplied together yield a negative answer.
Check this site.
http://www.mathsisfun.com/multiplying-negatives.html
The possible answers for this are:
A)-7
B)10
C)-28/3
D)-75
I am so lost and confused on this one: thank you for your help..what is your thoughts for the possible answers?
These are the possible answers: i was not comming even close?
A) -7
B 10
C) -28/3
d) -7/5
Oops! Obviously, I was wrong. I reworked the problem and found my mistakes.
7 (-7) - 7 (2-3)
______________________
2 (-6 + 9)
Numerator:
-49 - 7 (-1)
-49 - (-7)
-49 + 7 = -42
Denominator:
2 (-6 + 9)
2 (3) = 6
Answer:
-42/6 = -7
Thank you...my last assignment and test had all of these types of equaitons I failed them....
You're welcome.
Working with negative and positive numbers is confusing.
To compute the expression, we need to follow the order of operations (also known as PEMDAS/BODMAS), which stands for Parentheses/Brackets, Exponents/Orders, Multiplication and Division (from left to right), and Addition and Subtraction (from left to right).
Let's break down the expression step by step:
Step 1: Simplify the numerator (-7) - 7(2 - 3):
-7 - 7(2 - 3)
-7 - 7(-1) [Evaluate: 2 - 3 = -1]
-7 + 7 [Multiply: 7 * (-1) = -7]
0 [Add: -7 + 7 = 0]
Step 2: Simplify the denominator 2(-6 + 9):
2(-6 + 9)
2(3) [Evaluate: -6 + 9 = 3]
6 [Multiply: 2 * 3 = 6]
Now we have the simplified expression:
0 / 6
Step 3: Divide 0 by 6:
0 / 6
0 [Any number divided by 0 is always 0]
Therefore, 7(-7) - 7(2-3) / 2(-6+9) = 0.