What is the product of (1.5 x 10^2) and (8.4*10^3) expressed in scientific notation?

use options below (a, b.c, or d)

Given (1+cosx)/(sinx) + (sinx)/(1+cosx) =4, find a numerical value of one trigonometric function of x. a. tanx=2 b. sinx=2 c. tanx=1/2 d. sinx=1/2

What is the remainder when 2872 is divided by 76? a) 51 b) 57 c) 60 d) 63

You have a square piece of cardboard that measures 14 inches on each side. to build a box, you cut congruent squares out of each corner of the cardboard. use the picture to find the area of the cardboard you were used to build the box