Why a square must be a rectangle, but a rectangle does not have to be a square?

If f (x) = 6ex cos (x), find f ' (x) and f '' (x).

Use distributive property to solve the equation 5 (2x + 4) = 30 A. x-2 B. x=1 c. = 10

The skating rink rented 218 pairs of skates during the month of April and 3 times that many in May. How many pairs of skates did the skating rent during April and May?

Find decimal notation for 9/20

X=3/2 (1) = 3/2 how do you solve

A car travels 3 hours at 50mph; then travels 40mph for 7 hours. How many miles does it travel during the 10 hours?

A total of 449 tickets were sold for the school play. they were either adult tickets or student tickets. there were 51 fewer student tickets sold than adult tickets. how many adult tickets were sold?

The price of 1kg of apples is 0.85$. What is the price of 200 grams of apples?

Express 900 as a product of its prime factors in index form. Write the prime factors in ascending factors.

The equation 3x+4=5x-4 has the solution set {4}. explain why the equation (3x+4) + 4=5x-4) + 4 also has the solution set {4}