Answer:

Step-by-step explanation:
<u>Probability</u>
The simple probability of a random event can be calculated as the ratio between the possible favorable cases and the total possible cases.
The pie chart shows the number of books in Hero's library grouped by category.
The total number of books is 14 + 10 + 4 + 2 = 30
The number of romance books is 2
Thus, the probability of randomly choosing a romance book out of the total books is:

Simplifying:

This corresponds to the first option
Answer:
Step-by-step explanation:
it is in standard form
The range is the second set: {2, 4, 9, 16}
Answer: D.
First set is the domain.
The formula to find the radius of a circle is -
R = C/2π
R = 2/2π = 1/π
Step-by-step explanation:
Which one is the height?¿
The formula is
b1+b2 divided by 2 times the height
That's the best I can do for you atm atleast.