# Posts by Shelbie

Total # Posts: 13

Precal
How do i find the exact value for: (cos5pi/16)(cospi/16)+ (sin5pi/16)(sinpi/16)

chemistry
A sample of gas at 300 K has a volume of 2.0 liters. At what temperature will the volume decrease to 1.0 liter if the pressure is kept constant?

science help!!!
Thanks Josslyn

I really need someone to explain this stoichiometry problem. Directions: Outline how to determine the limiting agent. Determine the excess reactant and how much is left over. Determine the amount of each of the products produced. CaSO4 + AuF3 = CaF2 + Au2(SO4)3 Start with 15 ...

Use the following problem to: Outline how to determine the limiting agent. Determine the excess reactant and how much is left over. Determine the amount of each of the products produced. CaSO4 + AuF3 = CaF2 + Au2(SO4)3 Start with 15 grams of each reactant.

Math
Solve each inequality by using algebra. 8. x 2 + 10x + 1 ≥ 12 9. x 2 + 13x + 45 < 5 10. -2x 2 + 3x + 12 > 10 11. Business A consultant advises the owners of a beauty salon that their profit p each month can be modeled by p(x) = -50x 2 + 3500x - 2500, where x is the...

chemistry
Suppose that you have an unlimited supply of copper 2 chloride to react with iron. How many moles if copper would be produced by 34.0 grams of iron with the copper 2 chloride solution

chemistry
Suppose that you have an unlimited supply of copper 2 chloride to react with iron. How many moles if copper would be produced by 34.0 grams of iron with the copper 2 chloride solution

math
the problem is -9x+1=-80. At the end I cant figure out if it is a negative or positive?

Pre-Algebra
-My tens and units digits are consecutive integers whose product is 2/3 of my hundreds digit. -My units digit is 1/3 of my hundreds digit. -The sum of my digits id equal to the sum of the first five counting numbers. What year am I?

science
What is something in an experiment thst can change?

math
what does trigonometry mean?

English
yea go ahead, but i will prolly like it... im tellin you now!

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