Estimate 420983+39932

Which expression is equivalent to (x + y) (x - y) ?

Write a word phrase that can be represented by b - 6. A. the difference of 6 and b B. the quotient of a number b and 6 C. 6 more than a number b D. 6 less than a number b

Find the derivative of f (x) = - 5/x at x = 11.

What is the expanded form for 0.326

A rectangle has a width of 54 cm and a perimeter of 222 cm. What is the rectangles length?

Simplify the following expression using the distributive property 3 (2*5)

Simplify the expression - 2.3f + 0.3f - 16 - 9

The pressure P (in pounds per square foot), in a pipe varies over time. Ten times an hour, the pressure oscillates from a low of 40 to a high of 280 and then back to a low of 40. The pressure at time t = 0 is 40.

Useable energy is lost each time energy is converted to another form of energy, true or false?

Determine if the given ordered pair is a solution to the system of linear equations. Select Yes or No for each ordered pair and system of equations. Yes No Ordered pair: (-2,2) System of equations: - 7x + 2y = 0 6x + 6y = 0