The formula for density is d=m/v. where m is mass and v is volume. if mass is measured in kilograms and volume is measured in cubic meters, what is the unit for density?

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

The wheels of a bicycle have a diameter of 70cm. how many meters will the bicycle travel if each wheel makes 50 revolutions

Select the correct answer. what is the exact value of sin (157.5°)? a. 'sqrt(2 - sqrt(2))/2 b. *"-"'sqrt(2 + sqrt(2))/29 c.'sqrt(2 + sqrt(2))/4" d. "-"sqrt(2 + sqrt(2))/4)