Find the exact value of the trigonometric function. cot (-5pi/4)

Last year Kristen read one fourth as many biographies as mysteries and eighteen more science fiction books than biographies.

Evaluate for x = 2, y = - 5, and z = - 10. A. x-2y B. x^2 - z^2 C. (x - z) ^2 D. x-2y/3y [fraction] E. x+5/y+5 [fraction]

A classroom has the dimensions shown the dimensions are the length which is 9.1 the width which is 10.3 and the height which is 3.2 what is the area, volume and the total area of the four walls the shape is a rectangle

Round 2 5/6 to the nearest half

Find The Sum With The Given Product: (2x+3) (x-5)

A sample of 81 calculus students at a large college had a mean mathematics ACT score of 26 with a standard deviation of 6. Find a 95% confidence interval for the mean mathematics ACT score for all calculus students at this college.

A pet store has 7 cats. Here are their weights (in pounds). 12, 16, 8, 13, 10, 14, 16 Find the mean weight of these cats. If necessary, round your answer to the nearest tenth.

When 20 is subtracted from7 times a certain number the result is 134 what is the number

There were 57 cars in a parking lot then 34 more cars drove in and part some cars drove away now there are 66 cars in the parking lot how many cars drove away

Stephen hit a baseball 10 out of 30 times. What is the experimental probability that he will hit the ball the next Try?