an open container has an external surface
area of

it consists of a cylinder of height 5 cm mounted on a hemisphere, both
of the same external radius r cm. form an equation in r and show that it reduces to r^2 + 5r - 50 = 0. solve the eqaution and hence find the volume of the container in terms of

The average human heart beats 1.15 \cdot 10^51.15⋅10 5 1, point, 15, dot, 10, start superscript, 5, end superscript times per day. there are 3.65 \cdot 10^23.65⋅10 2 3, point, 65, dot, 10, start superscript, 2, end superscript days in one year. how many times does the heart beat in one year? write your answer in scientific notation, and round to one decimal place.

Which points are solutions to the linear inequality y < 0.5x + 2? check all that apply. (–3, –2) (–2, 1) (–1, –2) (–1, 2) (1, –2) (1, 2)

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?