07/05/25

How many gallons of a 30% salt solution must be mixed with 10 gallons of a 10% salt solution to create a 20% salt solution?
Mixture problems like this show up in SAT and other standardized tests, and they’re great for modeling real-world math. You're trying to create a 20% salt solution by mixing a stronger (30%)... more
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07/04/25

Solve this composite figure

Surface area of the cylinder. Surface area of the rectangular prism. SA cylinder + SA rect. prims - 2 area of circle https://ibb.co/DffDGz6h
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07/04/25

Find the surface area of this composite figure to the nearest hundredth.
Find the surface area of this composite figure to the nearest hundredth.https://ibb.co/HTQYrwVc
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07/01/25

At a certain temperature, the following reaction is at equilibrium: N2 ( 𝑔 ) + 3 H2 ( 𝑔 ) ⇌ 2 NH3 ( 𝑔 ) + heat Predict the direction the equilibrium will shift in response to each change.

a) Predict the direction the equilibrium will shift in response to each of the following changes. Explain your reasoning using Le Châtelier’s Principle. Additional H₂ gas is added to the... more
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06/28/25

What is the difference between kinetic and potential energy in physics?
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11/08/24

Find the manometer head to two decimal places.

Air is flowing through a circular tube with a changing cross-section as shown above. A water manometer is connected between sections 1 and 2. The rate of air flow is 170 l/s and the diameters are... more
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