01/23/22

preparatory math
Goran is a software salesman. Let y represent his total pay (in dollars). Let x represent the number of copies of Math is Fun he sells. Suppose that x and y are related by the... more
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01/16/22

When 10.0 g of liquid nitrogen is vapourized, 4000 J of energy is released. What is the molar enthalpy of vapourization for liquid nitrogen?
– 11.2 kJ/mol + 5.6 kJ/mol 0 kJ/mol + 11.2 kJ/mol – 5.6 kJ/mol
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12/29/21

In the first 4 games of the season, a soccer team scored a total of 10 goals. If the trend continues, how many goals will the team score in the remaining 18 games of the season?

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12/29/21

What is the area of a triangle with sides measuring 6.8 cm, 6 cm and 8.8 cm? Round to the nearest tenth.
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12/28/21

CHEMISTRY DOUBT - Why did Rutherford think the atom was empty?

Why did Rutherford think the atom was empty? It could be possible that the alpha particles went through the weak field of the positively charged particles due to the heavy mass and fast speed of... more
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12/23/21

A large school district has four high schools with enrollments as shown. 40 school buses need to be allocated to the high schools. Determine how many buses are allocated to each of the high schools
Solve the problem with: Hamilton and Jefferson's Method of Apportionment. School RRHS CCHS HHHS MHS Total Enrollment 738 851 1234 982 3805
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12/19/21

Analysis Question
A phone company determined that a higher income indicates that a customer has a more expensive calling plan. What does the analysis show?
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12/10/21

A pottery studio gives three-hour and four-hour ceramics classes for $34 an hour. If the studio has collected $2958 for a total of 27 classes, How many three-hour classes and four-hour classes were...
paid for?Blank three-hour classes (Type an integer or a decimal)Blank four-hour classes (Type an integer or a decimal)
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12/10/21

The radius 𝑟 , in inches, of a spherical balloon is related to the volume 𝑉 by r(V)=3√3V/4π.Air is pumped into the balloon so the volume after 𝑡 seconds is given by 𝑉(𝑡)=10+18𝑡.

Find an expression for the composite function 𝑟(𝑉(𝑡))What is the exact time in seconds when the radius reaches 16 inches?
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12/10/21

how do i find out how much heat is absorbed by calorimeter formula when using cacl2
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12/08/21

I dont know the answer

A one-year membership to a gym costs $725. The registration fee is $125, and the remaining amount is paid monthly. Define a variable. Then write and solve an equation to find how much new members... more
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12/08/21

chemistry labflow

Glucose (molar mass=180.16 g/mol) is a simple, soluble sugar. Glucose solutions are used to treat patients with low blood sugar.Suppose you prepare a glucose solution using the described... more
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12/08/21

James earns a monthly salary of $1200 and a commission of $125 for each car he sells
a. Graph and equation that represents how much James earns in a month in which he sells x cars
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12/04/21

Chemistry Distillation Questions
T‎he componen‎ts of an 80-m‎L rubb‎ing al‎cohol sam‎ple w‎ere sep‎arated using d‎istillation a‎nd the resul‎ting perce‎nt recov‎ery of isopr‎opyl alcoh‎ol is 14.70‎%. Dete‎rmine the volu‎me, in... more
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11/30/21

What is the empirical formula of 2.241 grams of nickel that are heated in air to produce 3.158 grams of nickel oxide.
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11/30/21

If crop B brings in a profit of $210 per acre, and crop A brings in a profit of $110 per acre, how many acres of each crop should the farmer plant maximize her profit?
A farmer is going to divide her 30-acre farm between two crops. The seed for crop A costs $25 per acre. Seed for crop B costs $50 per acre. The farmer can spend at most $1250 on the seed. If crop B... more
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11/28/21

Why We study political in geography field?
Why We study political in geography field?
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11/27/21

How do I attach an image to questions?
I need help with my geometry homework, and I cannot attach a picture. I tried to attach the picture to a webpage, but It says “this content is under review.” What should I do?
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11/22/21

How do we find height when given density, mass and radius
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11/18/21

If each astronaut exhales 18.2 mol of CO2 every day and the mission is eight days, what mass of LiOH would exactly meet the requirement?
When the engineers were designing Apollo 13, they had to estimate the amount of CO2 that each astronaut would exhale. Unlike the Lunar Module, the Command and Space Module had enough LiOH to scrub... more
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11/13/21

How many mL of 0.0283 M Na2S2O3 do you need to dissolve 0.860 g of AgBr?

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11/08/21

Show the setup to get to this: 29.8 grams of magnesium is equal to how many atoms of magnesium?
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11/08/21

Maximum Height Word Problem
A pole vaulter leaves the ground, and his height (h) in feet after t seconds is given byh(t) = -16t2 + 19ta) What was the height of the pole vaulter 1 second after leaving the ground?b) How many... more
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11/03/21

Algebra 1 math question
Each player at a paintball park pays an entrance fee to use the course. The paintball park also charges each player for the number of paintballs used.When a player uses  paintballs, the total cost... more
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11/03/21

Linear Equation Word Problems
1) To rent a canoe, you pay a one-time fee plus $8 per hour. Jill rented one for 3 hours and paid $49.A) What is the fee?B) How much would it cost for 5 hours?
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