7 Simplify the expression below.
7 to the 2nd power − 9 + 1to the 3rd power 3
A 37
B 39
C 41
D 43 *IF ANYONE HAS ALL OF THE RIGHT ANSWERS FOR THE Unit 4 Alternative Portfolio Answer Sheet, GIVE THEM TO ME!!!!!PLEASE!!!
7^2 - 9 = 49-9 = 40
I have no idea what "1to the 3rd power 3" means
But it appears you meant 1^3 * 3, if your answer is 43
Oh. I think that was a typo
To simplify the given expression, you need to follow the order of operations, also known as PEMDAS (Parentheses, Exponents, Multiplication/Division, Addition/Subtraction).
Given expression: 7^2 - 9 + 1^3 * 3
Step 1: Evaluate the exponents.
7^2 = 7 * 7 = 49
1^3 = 1
After evaluating the exponents, the expression becomes: 49 - 9 + 1 * 3
Step 2: Perform multiplication.
1 * 3 = 3
After performing the multiplication, the expression becomes: 49 - 9 + 3
Step 3: Perform addition and subtraction.
49 - 9 = 40
40 + 3 = 43
Therefore, the simplified expression is 43.
So, the correct answer is option D: 43.