A random sample of 20 items is selected from a population. to determine the appropriate critical t-value what number of degrees of freedom should be used?

If you have 12 cars and 40 people each car can hold about 4 people will there be enough cars?

Convert 5 feet to inches. There are 12 inches in 1 foot. A) 15 inches B) 20 inches C) 50 inches D) 60 inches

Explain when a trapezoid is not a parallelogram. Sketch an example.

Which is an odd monomial function? A. y=2x^3 B. 1/x C. 5x^-9 D. 3

What is the factorization? -3x^3+15x^2+42x A. 3 (x+7) (x+2) B. 3 (x^2) (x+2) C. - 3x (x+7) (x-2) D. - 3x (x-7) (x+2)

Solve - 14 + 5x = - 12 really need this answer

Doug and Ken are meeting for lunch at Rodrigo's Mexican Restaurant. Doug's work place is 5 miles from the restaurant and Ken's work place is 7 miles from the restaurant.

6x2/5 will be greater or less than 2/5

Over winter break, Raymond worked 12.5 hours at the library and 20.5 hours at a café. The library paid him $13 per hour. If he earned a total of $459.75 from both jobs, how much did the café pay Raymond per hour?

A swimming pool is 15 feet wide, 50 feet long, and has an average depth of 5 feet. How many cubic feet of water will it hold