04/19/21

college algebra
Mercury 197 has a decay rate of 1.066% per hour. Given the exponential model representing the amount of Mercury 197 remaining after t hours, find how long it will take 387 grams of the Mercury 197... more
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04/19/21

college algebra
Mercury 197 has a decay rate of 1.066% per hour. Given the exponential model representing the amount of Mercury 197 remaining after t hours, find how long it will take 387 grams of the Mercury 197... more
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04/11/21

power functions and polynomial functions
g is a polynomial of degree 3. g has a root of multiplicity 2 at c=5, g(−1)=0, and g(0)=−9.25. Find an algebraic equation for g.
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04/07/21

Simplify the algebraic expression 3(x - 1) + 4(x + 2)
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04/02/21

College algebra

Find the standard form for the equation of a circle (x−h)squared + (y−k)squared = r2with a diameter that has endpoints (−2,2) and (3,8)h=k=r=
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03/23/21

How many atoms of Oxygen are there in 15 g of sodium bicarbonate?
Sodium bicarbonate (NaHCO3) is commercially known as baking soda.         (Molar mass of NaHCO3 = 84.01 g/mol) 
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03/23/21

How many grams of Oxygen are there in 15 g of sodium bicarbonate?
Sodium bicarbonate (NaHCO3) is commercially known as baking soda.         (Molar mass of NaHCO3 = 84.01 g/mol) 
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03/18/21

College Algebra
 salesperson’s weekly paycheck is  less than a second salesperson’s paycheck. The two paychecks total . Find the amount of each paycheck
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03/16/21

What was the goal of the economic sanctions imposed by foreign nations on South Africa?

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03/11/21

Ideal Gas Laws , what is the pressure of the gas in

If 380.8L of a gas at STP has a temperature of 67C and a volume of 88.89L, what is the pressure of the gas in atm?
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03/04/21

College Algebra
Use slope-intercept form to write an equation of a line passing through the given point and having the given slope. Express the answer in standard form. P(−4, −6); m =  − 3/4
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03/03/21

College Algebra

The length of a rectangle is 7 yards more than twice the width x. The area is 319 yard2
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03/02/21

Given the reaction: C3H8 + 5 O2 → 3 CO2 + 4 H2O
What is the total number of moles of O2 required to produce 1.5 moles of CO2? A) 5.0 B) 2.5 C) 3.0 D) 1.5
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03/01/21

Chelsea will fund her ira
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03/01/21

brandon will fund his 401(k) up to the match and then put the remainder in his roth ira
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02/26/21

chemistry problem
3.7x10E24/6.022x10E23x23
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02/24/21

algebra question

a golf ball is chipped into the air from a small hill with an upward velocity of 50ft/s. it’s height h in feet after t seconds is given by the function h=-16t^2+50t*10. how long will it take the... more
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02/18/21

Compound Interest ALGEBRA 1

You invest an initial $100 in an account that has an annual interest rate of 3%, compounded monthly. How much money will you have in the account after 20 years? Round your answer to the nearest cent
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02/17/21

college algebra

Find functions f and g such that ​(f◦​g)(x)=​h(x), where ​h(x)=5x+11.
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02/17/21

Algebra 2 circles and radius

a circle has a center of 5,2 and a radius of 10 which of the following points will the circle pass through? show work: (A) (15,12)(B) (8,7)(C) (11,-6)(D) (-1,8)
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02/15/21

Chemistry hw Help

A 180mL of a gas occupied 302K at 0.atm. What would be the new temperature if the gas volume changed at 90mL at a final pressure of 3.20atm?
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02/12/21

Algebra expressions
Twice a number increased by 10
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02/12/21

Starting with 5.00 moles of potassium sulfate and 4.00 moles of calcium nitrate, to make calcium sulfate. What reactant is the limiting reactant?
K2SO4+Ca(NO3)2=CaSo4+2KNO3
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02/11/21

2H2S + 3O2 -> 2SO2 +2H2O Starting with 9.2 moles of O2, How many moles of H2O will you produce?
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02/11/21

Chemistry Homework
1.6 mol Zn and 7.6 mol HCl react according to the equation Zn + 2 HCl −→ ZnCl2 + H2 . Calculate the amount of H2 formed. Answer in units of mol.
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