A mason will lay rows of bricks to build a wall. The mason will spread - inch of mortar on top of all but the last row of bricks. The finished wall will be 13 inches less than 4 feet high. Answer parts a and b below.

a. The mason wants to lay the bricks so that the shortest edge of each brick is vertical. How many rows of bricks are needed? Show your work.

times

Let b equal the number of rows of bricks. The total height of the bricks in inches is equal to times The total height of the mortar is equal to

Their sum is equal to the height of the wall or inches. If I write this as an equation and solve for b, then the result is rows of bricks.

(Simplify your answers.)

Which expressions are equivalent to k/2 choose 2 answers: a k-2 b 2/k c 1/2k d k/2 e k+k

In one day there are too high tides into low tides and equally spaced intervals the high tide is observed to be 6 feet above the average sea level after six hours passed a low tide occurs at 6 feet below the average sea level in this task you will model this occurrence using a trigonometric function by using x as a measurement of time assume the first high tide occurs at x=0. a. what are the independent and dependent variables? b. determine these key features of the function that models the tide: 1.amplitude 2.period 3.frequency 4.midline 5.vertical shift 6.phase shift c. create a trigonometric function that models the ocean tide for a period of 12 hours. d.what is the height of the tide after 93 hours?

Need asap. solve for the following inequality