Magnesium has a density of 1.071 g/cm3

. Aluminium has a density of 2.700

g/cm3

. An unknown metal has a mass of 15 g and a volume of 14 cm3

. Is the

unknown metal magnesium or aluminium? Show your work for complete marks.

If 7.7 plus 8.1 times a number equals the sum of the number and 16.8 what is the number

How many meters in one dekaliter?

the height of the slide is 10 feet. The distance between the ladder and the edge of the slide is 12 feet. what is the distance of the slide?

Suppose a 95% confidence interval for µ turns out to be (1,000, 2,100). To make more useful inferences from the data, it is desired to reduce the width of the confidence interval. Which of the following will result in a reduced interval width? A.

What is the slant height of the cone that has a radius of 15 centimeters and a height of 36 centimeters.

An airplane descends 1.5 miles to an elevation of 5.25 miles. Write and solve an equation to find the elevation of the plane before its descent.

What is the square root of - 148

Jamal and tia started riding to the mall with their bicycles. The mall is 3.5 km from Jamal's house. They stopped for a drink at a park after 2.25 Km. How much farther do they have to ride to reach the mall.

Luke made a model of a solid figure with one circular base and one curved surface with solid figure did he make

A cone is inscribed in a regular square pyramid. If the pyramid has a base edge of 6" and a slant height of 9", find the volume of the cone.