Answer:
a. 53.68
b. 53.53
Step-by-step explanation:
a. Step 1: Approximate the value for :
Since is close to (which is 8), this value can be approximated as a number that is less than but very close to 8. I chose 7.9.
The expression becomes 6(7.9)+2π
Step 2: Approximate the value for 2π
Since π is approximately 3.14, 2π is approximately 6.28.
The expression becomes 6(7.9)+6.28
Step 3: Use order of operations
6(7.9)+6.28=47.4+6.28=53.68
b. Step 4: If allowed, use a calculator to check how close your approximation is to the actual value
The approximation 53.68 is decently close to the actual value, so no minor math errors were made.
You are given the system of equations
If you want simply to know whether (1,1) is a solution of this system, then substitute x=1 and y=1 into both equations:
This means that (1,1) is a solution, because both iqualities hold.
Ninety seven three hundredth fifty six
Answer: $552
(20x12) 2 =480
480 x 0.60 = 228
480-228=552
5 1/2 ft equals 66 inches