Suppose that whether or not it rains today depends on previous weather conditions through the last three days. Show how this system may be analyzed by using a Markov chain. How many states are needed?

In ΔWXY, the measure of ∠Y=90°, XW = 25, YX = 24, and WY = 7. What is the value of the cosine of ∠W to the nearest hundredth?

A rectangular window has a length of 81.47 cm and a width of 34.2 cm. What is the least precise measurement of the perimeter of the window? A 231.4 cm B 231.34 cm C 231.3 cm D 231 cm

Evaluate (2-4) (43) (33) 4

Is the inverse of the function shown below also a function? Explain your answer. On a coordinate plane, a curve is in quadrant 2 and opens down to the right. The curve crosses the y-axis at (3, 0) and then opens up to the left in quadrant 1.

I am a two-digit number i am one less than a multiple of 10 if you add 30 to me you get another prime number who am I

Rapheal is enrolled as a foreign-exchange student. He is from Canada and is going to attend school in Texas. On average he can spend $82 USD each month for the 5 months he is visiting.

It took a skydiver 5 seconds to drop 400 feet. What is the rate (in feet per/second) of the skydiver's drop?

The cost of a camp is $300 for the first week and $125 for each week beyond the first. The total cost can be modeled by the expression 300 + 125 (x - 1). What does (x - 1) represent?

On the first day of the fiscal year, a company issues $65,000, 6%, five-year installment notes that have annual payments of $15,431. The first note payment consists of $3,900 of interest and $11,531 of principal repayment. a.

Which set of side lengths could be used to form a right triangle?