Zero is the additive identity for addition. for example,0+a=a, where a is a rational number.
what is the multiplicative identity n such that a*n=a for any rational number a?

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

Which inequality is equivalent to -3x < -12? x < 4 , x < -4 , x > 4, x > -4

Sketch the region enclosed by the given curves. decide whether to integrate with respect to x or y. draw a typical approximating rectangle and label its height and width. y= 5x, y=7x^2then find the area s of the region.