Recall that sin(π/2) = 1, and cos(π/2) = 0,

Answer:
8.11%
Step-by-step explanation:
We need to find the percentage error. We can follow the formula shown below:

Where
PE is the Percentage Error
New is the newest measure (given as 20 feet)
Orig is the original, or first, measure (given as 18.5)
Substituting and finding the PE:

Tagging the percentage , percent error is about 8.11%
Answer:
-4 + 32i
Step-by-step explanation:
use the distributive property to multiply
remember: i^2 = 1
(4 - 6i)(-4 + 2i)
-16 + 8i + 24i - 12i^2
-16 + 32i - 12(- 1)
-16 + 32i +12
-4 + 32i
If you make 6 items a day on day 30 you will have 180 items. This is just a simple division problem, 180/6=30