Social studies
What are physical traits of a region???
Chemistry
Assume that a particular reaction evolves 230 kJ of heat and that 28 kJ of PV work is gained by the system. What are the values of delta E and delta H for the system? For the surroundings?
Math
A hot air balloon is rising vertically. From a point on level ground 125 ft. from a point on ground level directly under the balloon the angle of elevation of the balloon changes from 19.2 to 31.7. How far does the balloon rise during this period? Draw a diagram when answering...
science
What type of environments do leopards need to live in?
algebra
Write a function rule for the area of a triangle whose base is 4 ft more than the height. What is the area of the triangle when its height is 6 ft?
geometry
find the diameter of a circle if the radius is 12.7
Social studies
What's the luisiana purchase
Science
In an experiment, BEtsy dissolves 18 grams of powdered dye in 100 grams of pure water. The colored water is then heated on a hot plate, whenthe colored water evaporates completely, how much dye will be left?
english
"Yes, I made an important medical discovery. But I couldn't have done it without my team," said Dr.Jones. What's a word that discribes the sentence above?
calculus
if f(x)=ln(x^3 +1) find f '(3), correct to 2 decimal places
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