Answer:
D) examine a person for diseases
Explanation:
Only an X-ray can examine a person for diseases and broken bones because it is used to see what is happening on the inside of our bodies.
Answer:
A) First we need to decompose the vector A in x-axis and y-axis:
And also we have for vector B:
To find A + B:
B)
First, you find what 20% of 10 gallons of gas would be. This will show how many gallons the car actually uses.
10 gallons x 20% =
10 x 0.20 =
2 gallons used
Then you subtract that number from the total 10 gallons to get how many gallons of gas would be wasted.
10 gallons - 2 gallons =
8 gallons of gas wasted