Answer:
"Multiply –6 and 3"
Step-by-step explanation:
For order of operations, we follow the rule PEMDAS
- We do PARENTHESIS first, then
- Exponents, then
- Multiplication, then
- Division, then
- Addition, then
- Subtraction
In this problem, we have parenthesis, so (-6)(3) should be done first.
Hence, we should multiply -6 and 3.
The sqrt(7) part makes it irrational, so the answer is irrational.
Quarters = x
dimes = 196 - x
10(196 - x) + 25x = 3940
1960 - 10x +25x = 3940
1960 + 15x = 3940
15x = 1980
x = 132
169 - 132 = 64
Therefor there are 132 quarters and 64 dimes
Answer:
The answer is A
Step-by-step explanation:
Step 1: Use Cosine to find ∅
Cos∅=
∅=Cos()
Therefore the answer is A