What's happening is that every subtraction can be written as "addition of the opposite."
18-5 = 18 + (-5)
One reason this is done in the work you showed is that they're trying to show why you distribute the negative and the 1 into the parentheses, why you multiply everything in the parentheses by "-1" and not just 1.
The other reason is to later to be able to move the individual terms around, so you'll be able to combine like terms.
When you move terms around, the sign has to stay attached to the term, so writing all the subtractions as addition helps keep the sign attached.
In this case scenario, the population and sample
would be:
Population : Collection of all US adult who own
VCR
Sample : Collection 898 US adult who own VCR
<span>Therefore the answer to this is “False”</span>
<span>Hope this helps you!</span>
Answer:
20 m
Step-by-step explanation:
the distance from the top car to the bottom car is equal to the diameter of the wheel. The diameter is 40 m, and that is twice the radius. The radius of the Ferris wheel is (40 m)/2 = 20 m.
To find the formula to find radius, solve for r using the formula for circumference.
to solve:
1. divide each side by 2
2. you get
r = c/2
Answer:
the first option
a = -2
b = 3
Step-by-step explanation:
See photo attached. (:
