Answer:
<u>It is assumed the question is asking to simplify or factorize:</u>
- (a + b)² - a² + b² =
- a² + 2ab + b² - a² + b² =
- 2b² + 2ab
This is simplified expression.
<u>Factorizing as follows:</u>
Number of miles that can be traveled on one gallon of gas=311/12
=25.92miles
=25.9miles(to the nearest tenth)
24 pencils = 100%
30 pencils = ___%
30 - 24 = 6, so:
24 / 6 = 4 (it means that there are 4 sixes in 100%)
100% / 4 = 25%
Check: 25% * 24 = 25/100 * 24 = 1/4 * 24 = 6
30 - 6 = 24 (correct)
Answer: There was an increase by 25%
20 miles = 100%
11 miles = ___%
1 mile = 100% / 20 = 5%, so:
5 * 11 = 55 [percent]
100% - 55% = 45%
Check: 45% * 20 = 45/100 * 20 = 45/10 * 2 = 9/2 * 2 = 9
20 - 9 = 11 (correct)
Abswer: There was a decrease by 45%
Answer:
c. 35/12
Step-by-step explanation:
Use soh cah toa, tangent equals opposite over adjecent. A also remember tangent by remembering that it is the only ratio to not use the hypotenuse.
A function cannot have multiple outputs with same inputs.
Given that, we know that a and c are not functions.
Solution: A. b and d
