Yea. The text book is either wrong or it knows something that we don't. Like as to why they would need to have two more feet. You're right though

Simplify
to 

Both are over 11, so, just sum.


Answer:
a. true
b. true
c. True
Step-by-step explanation:
a. The domain of a relation includes all possible set of data that are the x-values. Therefore, the domain of the relationship given would be: {2, 3, 5, 6}.
a is True.
b. The range includes all corresponding y-values. Therefore,
Range would be {1 4, 5, 7}
b is Tire.
c. There's 5 on both range and domain.
c is hungry.
Answer:
Therefore the probability of getting both blue marbles is
.
Step-by-step explanation:
Probability : The ratio of favorable outcomes to the total outcomes.
Given that a bag contains 7 marbles which are red in color, 2 marbles which are blue in color and 3 marbles which are green in color.
Total number of marbles = (7+2+3) = 12
The probability of getting a blue on first drawn is



Now the number of blue marbles = (2-1)= 1 [ since 1 blue marbles is drawn]
Total number of marbles = (12-1) =11
The probability of getting a blue marble on second drawn is


Therefore the probability of getting both blue marbles is


Answer:
or 
Step-by-step explanation:
Given


Required
Calculate the area of the sector
When angle is given in degrees, the area of sector is calculated as thus;


becomes






The above is the area in terms of π
Solving further.... (Take π as 3.14)
becomes


Hence, the area of the sector is
or 