If the radius of curvature of the convex side is 8.00 cm, find the magnitude of the radius of curvature of the concave side such that the lens will be diverging with a focal length equal to -16.4 cm. The lens is made of glass with an index of refraction equal to 1.58.

Which is a true statement comparing the graphs of x^2/6^2-y^2/8^2 = 1 and x^2/8^2-y^2/6^2 the foci of both graphs are the same points. the lengths of both transverse axes are the same. the directrices of = 1 are horizontal while the directrices of = 1 are vertical. the vertices of = 1 are on the y-axis while the vertices of = 1 are on the x-axis.

For which pair of functions is (gof)(a)=|a|-2?

Jada has a meal in a restaurant she adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00. when the check comes, it says they also need to pay $3.99 in sales tax. what percentage of the subtotal is the sales tax