If a = 7, b = -3 and c = 2, the 2nd degree equation that corresponds to these coefficients is: a) 2x(x+1) + 5x² - 5x = - 2
b) 2x² + 7x - 5 = 0
c) 3x² -7 = 0
d) 4(x² + 7) - 3x - 7 = 0
e) None of the above.

At the county fair, the baxter family bought 6 hot dogs and 4 juice drinks for $12.90. the farley family bought 3 hot dogs and 4 juice drinks for $8.55. find the price of a hot dog and the price of a juice drink.

Find the amplitude of a sinusoidal function that models this temperature variation

Ne height of zak is 1.86 metres. the height of fred is 1.6 metres. write the height of zak as a fraction of the height of fred. give your answer in its simplest form.