Remark
<u>Two facts.</u>
1) Tan(x) = Sin(x) / Cos(x)
2) Csc(x) and Sin(x) are reciprocal relationships. When multiplied together, they equal 1.
Solution
So Csc(x) * tan(x) = csc(x) * sin(x) / cos(x) = 1/cos(x) = sec(x)
So far what we have is tan^2(x) + sec(x). We have to get rid of tan^2(x)
Use the identity of 1 + tan^2(x) = sec^2(x)
tan^2(x) = sec^2(x) - 1
sec^2(x) - 1 + sec(x)
a^2 + a - 1 <<<<<< Answer
B is the answer.
Your plate numbers will be like

where each
is a number, and each
is a letter. Assuming you can use all numbers and letters, you have 10 possible choices for every
place (all the digits from 0 to 10) and 26 possible choices for every
place (all the letters from a to z).
So, if you multiply all the possible choices, you have

So, there is a total of

possible plate numbers with 3 letters and 3 numbers, if repetitions are allowed.
Answer:
8 miles
Step-by-step explanation:
1 hr=4mi
1 1/2 hr=6mi
2 hr=8mi
What so you need to know?
So you have 10 marbles all together. you remove one and dont replace it. it will be 3/9 which simplifies to 1/3.