Answer: send a picture
Step-by-step explanation:
Answer:
Step-by-step explanation:
To solve this problem you must apply the proccedure shown below:
1. You have that she substituted 
into the simplified expression and the result was -4.
2. Therefore, if you substitute into all the expressions shown in the options, you will see that the result of the expression is -4, as you can see below:
Answer:
The answer is 2pi
Step-by-step explanation:
To find the area of a cirlce, use the equation ( pi * r^2 ) so for a semi circle, which is half, simply divide that by 2. Plug in 2 for radius and you get 4pi/2 which simplifies to 2pi.
Answer:
I don't know if this is what your looking for but if you had 40 ohms and 5 amps, you would get 200 volts / and 1000 watts.
Hope that helps :)
Step-by-step explanation:
