Which of the following is not an identity?

A. cos^2 x cscx-cscx = - sinx

B. csc^2x + sec^2x = 1

C. sinx (cotx + tanx) = secx

D. cos^2x - sin^2x = 1 - 2sin^2x

Multiply or divide to make this English distance conversion. 100 yards = feet

Forty-five children attend a preschool. The number of two-year-olds is one half the number of three-year-olds. The number of Four-year-olds is the same as the number of 3-year-olds

Which of the following is a polynomial with roots 5, 4i, and - 4i? A.) f (x) = x3 - 5x2 + 20x - 16 B.) f (x) = x3 - 5x2 + 16x - 80 C.) f (x) = x3 - 20x2 + 5x - 16 D.) f (x) = x3 - 16x2 + 80x - 5

Calculate the interest earned on a savings account with $660.00 that is invested at 3.5% annual simple interest for 5 years. A. $23.10 B. $26.40 C. $69.30 D. $115.50

How many meters can category 5 cable reliably carry 100 mbps of data?

An antelope Can run at a speed at 61 mph. What is the speed in yards per second? Round to the nearest hundredth.

Which of the following would be the most effective means of controlling current water pollution of United States surface waters?

How do you write 151% as a fraction or mixed number in simplest form?

Sam and his two brothers want to fly to Boston. About how much will Sam and his brothers save buying the less expensive fare? Skies the limit airline $319 In the clouds airlines $405

The sum of two numbers is 65 and the difference is 13. what are the numbers?