03/04/21

Decay Formula Problem
The half life of a certain isotope is 5.5 years. If there were 20 grams of one such isotope left after 22 years, what was it's original weight?I understand I will be using the formula : y=... more
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03/04/21

from a 100mL prepared buffer, only 20mL was used for the addition of a strong acid or base. will the taken 20mL still represents the same moles as the originally prepared buffer solution?
Will the moles of the obtained 20mL buffer from the originally prepared 100mL buffered solution have the same moles or will they be different? What I am sure of is that the concentration of the 2... more
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03/04/21

A bicycle rental company charges $16 for the first hour and $7.00 for each additional hour. Determine the maximum number of hours you can rent a bike if you only have $93.
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03/04/21

A bicycle rental company charges $16 for the first hour and $7.00 for each additional hour. Determine the maximum number of hours you can rent a bike if you only have $93.
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03/03/21

I need help on my math please
Action Game Rental charges $25 membership fee and $8 to rent a video game. Bob's Easy Game Rental charges $13 to rent a video game. If you rented the same number of games from each business, after... more
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03/03/21

Write the equation of the line that passes through the point (3,5) that is parallel to:

this is the equation y=1/2x-3
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03/03/21

Slope intercept form
Write an equation for the line that passes through (2,-8) and (-3,2) IN SLOPE intercept form
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03/03/21

describe ending behavior when g(x)=-2log(1/3)x-4 when x approach 0
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03/03/21

this is the question
 A baby catfish weights about 0.1 pound. During the next 8 weeks, its weight increases at a rate of about 27% per week.a) Write an exponential growth function that represents the weight of the... more
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03/03/21

question is down
Last year, a large trucking company delivered  tons of goods with an average value of $23,000 per ton. What was the total value of the goods delivered? Write the answer in scientific notation.
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03/03/21

chem question answer help
A volume of 11.0 mL of a 0.32 M solution of hydrogen phosphate (or phosphoric acid) reacts completely with 71.0 milliliters of sodium hydroxide. What is the molarity of the sodium hydroxide solution?
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03/03/21

Hey can u help pls
Solve for x by using square roots: x^2 + 28 = 8 The solution would be....
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03/03/21

How many grams of H2 are needed to react with 2.80 g of N2?
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03/03/21

C (g) + O2 (g) → CO2 (g)  ΔH = -393.5 kJ How much energy is involved when 88.0 grams of CO2 is synthesized?
C (g) + O2 (g) → CO2 (g)  ΔH = -393.5 kJHow much energy is involved when 88.0 grams of CO2 is synthesized?
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03/01/21

Find slope and y intercept?
Give the slope and the y intercept of the line −3x+4y=5.
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03/01/21

Find equations for slope?
Find an equation of the line that has a slope of -7 and a y intercept of 3. Write your answer in the form y=mx+b.
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03/01/21

How many mL of a 0.150 M NaOH solution are required to fully react 20.0 mL of 0.100 M acetic acid?

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03/01/21

In a lab, nitrogen trichloride is synthesized from its elements. This reaction has a 60.0% yield...
In a lab, nitrogen trichloride is synthesized from its elements. This reaction has a 60.0% yield. A chemist wants to prepare 50.0g of nitrogen trichloride, with a 60.0% yield, what mass of nitrogen... more
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03/01/21

chem question help please

If 2.6 g of sodium metal completely reacts with 24.1 mL of pure water (which is in excess), what is resulting molarity of the sodium hydroxide solution?
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03/01/21

Naming & Writing Ionic Formulas
Directions: Click the link for digital dice. In the menu at the top of the website choose to use the pink and blue dice so they match the dice key below.. Roll the dice and using the key below... more
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03/01/21

Use the given conditions to write an equation for the line in​ point-slope form and​ slope-intercept form. Slope=−2​, passing through

Use the given conditions to write an equation for the line in​ point-slope form and​ slope-intercept form.Slope=−2​, passing through
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03/01/21

please help meee!!!
number of half lives- 0,1,2,3,4,5,6remaining amount of substance (grams)4000, 2000, 1000, 500, 250, 125, 62.5(imagine all of that in a chart)which equation best fits the data in the given table?a.... more
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02/28/21

if a ball is thrown directly upward with a velocity of 44 feet per second, its height (in feet) after t seconds is given by y=44t−16t^2. What is the maximum height attained by the ball
if a ball is thrown directly upward with a velocity of 44 feet per second, its height (in feet) after t seconds is given by y=44t−16t2. What is the maximum height attained by the ballanswer in feet
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02/27/21

Would someone be so kind and please help me with this question?

In George Washington's "Farewell Address," what are three of the instructions that Washington gives to the American people?I've read the "Farewell Address" many times, but I really don't know how... more
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02/27/21

If f(x)= -3x+2, please find f(0)
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