math
a disk has an area of 250 square inches.what is theradius of the disk?
calculus
An airplane is cruising at 340 km/h at an altitude of 4000 m. If the plane passes directly over an observer on the ground, how fast is the distance from the plane to the observer changing when it is 3000 m away from the point directly above the observer?
Algebra
A grocer mixes 5 lb of egg noodles costing $ .80/lb with 2 lb of spinach noodles costing $1.50/lb. What will the cost per pound of the mixture be?
Algebra
Susan drove for 2 hours at 85 km/hr and then for 3 hours more at 95 km/hr. What was her average speed for the entire trip?
Algebra
If 800ml of a juice drink is 15% grape juice, how much should be added to make a drink that is 20% grape juice?
science
please tell me if you agree with the following: Which Brand of popcorn hs the least amount of unpooped kernels after 3 minutes. Brand 1 has 1 Brand 2 has 15 Brand 3 has 16 Brand 4 has 5 Brand 5 has 25 the answer is Brand 1 BUT is the: independent variable the different brands ...
Chemistry
15.0 moles of gas are in a 6.00L tank at 298.15K. Calculate the difference in pressure between methane and an ideal gas under these conditions. The van der Waals constants for methane are a=2.300 L^2*atm/mol^2 and b=0.0430 L/mol. I found the idea gas pressure to be 61.2 atm by...
social studies
What is an example of a nonrenewable resource?
Physics
An object with mass 3.7 is attached to a spring with spring stiffness constant 270 and is executing simple harmonic motion. When the object is 2.5×10−2 from its equilibrium position, it is moving with a speed of 0.45 . what is the amplitude of the motion?
Ethics
THe gm of a software company is in the process of constructing a new facility in a country. THe gm has a manager of native origin acting as liaison between the company and government officials. THe new facility requires some permits and licenses. Government officials have indi...
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