Question

simplify the expression using the order of operations.
$9 - (3 \div 3)^2$

a the victim was not mauled by a cougar.
b mr. epsilon was reading in the library.
c the murder was not done by chemical poisoning.
d latex-2081fcc426961bf2edbae73e856c7c11_5bb36ecddoagc.png coach omega was exercising in the gym.

question 2 (1 point)
clue #2
simplify the expression using the order of operations.
$4 - 5 + 6 \div 2 \cdot 7$

a dr. alpha was cooking in the kitchen.
b the murder was not a drowning.
c professor delta was watching a movie in the theater.
d the victim was not electrocuted.

Explanation:

First Expression: \( 9 - (3 \div 3)^2 \)

Step1: Solve inside the parentheses

First, we calculate the operation inside the parentheses: \( 3 \div 3 = 1 \).

Step2: Evaluate the exponent

Next, we handle the exponent: \( (1)^2 = 1 \).

Step3: Perform the subtraction

Finally, we do the subtraction: \( 9 - 1 = 8 \).

Second Expression: \( 4 - 5 + 6 \div 2 \cdot 7 \)

Step1: Perform division

First, we do the division: \( 6 \div 2 = 3 \).

Step2: Perform multiplication

Next, we do the multiplication: \( 3 \cdot 7 = 21 \).

Step3: Perform addition and subtraction (from left to right)

Now, we handle the addition and subtraction from left to right: \( 4 - 5 = -1 \), then \( -1 + 21 = 20 \).

Answer:

s:
For \( 9 - (3 \div 3)^2 \): \(\boldsymbol{8}\)
For \( 4 - 5 + 6 \div 2 \cdot 7 \): \(\boldsymbol{20}\)