Sketch the graph of a function whose first derivative is always negative and second derivative is always positive.

What is the distance between the points 4,10 and -3,-14 on the coordinate plane

Two streets intersect at a 30- degree angle. at the intersection, the are four crosswalks formed that are the same length. what type of quadrilateral is formed by the crosswalks?

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items