20. Queremos embaldosar un patio cuadrado de 48 m de perímetro. Para ello, vamos a
poner baldosas con forma de rombo cuyas diagonales miden 40 cm y 30 cm. Si cada
baldosa cuesta 2,20 € y el cemento cuesta 1,50 €/m2. ¿cuánto nos costará solar el
patio?

Solve 3x-18=2y and 5x-6y=6 by elimination show work

Which graph represents the equation y =4x

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?