It is B because tangent lines are always perpendicular to radii
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Answer:
Inequalities work exactly like equations with one exception. The process begins just like equations: first, do the opposite of what you see, then do the same thing on the other side of the sign. At the last step of solving an inequality, if you multiply or divide by a negative number, then you reverse the sign
Answer:
y≥ 23
Step-by-step explanation:
y/3 - 7 ≥ 2/3
Add 7 to each side
y/3 - 7+7 ≥ 2/3+7
y/3 ≥ 2/3+21/3
y/3 ≥ 23/3
Multiply each side by 3
y/3 *3 ≥ 23/3*3
y≥ 23
Given:
The two statements.
To find:
The probability of an impossible event.
The probability of a certain event.
Solution:
Formula for probability is:

For an impossible event, the possible favorable outcomes is 0. So,


For a certain event (sure event), the possible favorable outcomes is equal to total number of outcomes. So,


Therefore, an event that is impossible has probability 0 and an event that is certain has probability 1.