Samuel O.

02/21/21

Tricky SAT Math - Exponents

If 3x - y = 12, what is the value of 8x/2y ?A) 212B) 44C) 82D) The value cannot be determined from the information given.

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Chemistry

11/20/20

When 200. mL of 0.40 M hydrochloric acid solution is mixed with 3.76 g of aluminum metal, how many moles of hydrogen gas would be produced?

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Math Calculus Precalculus

08/14/20

How to better communicate math?

Hello. This question is directed to professionals who manage the site.The Ask an Expert forum, although very easy to use, does not seem to offer the ability to typeset mathematics in an... more

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Spanish Linguistics

07/28/20

When do you use saber versus conocer in Spanish?

This question can confuse many Spanish learners because both of these verbs translate as "to know." These two verbs cannot be used interchangeably, however! They correspond with specific situations... more

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