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Finite geometric series word problems
By Khan Academy
Figuring out the formula for fixed mortgage payments using the sum of a geometric series
Sum and Difference Identities for Sine and Cosine, More Examples #1
By PatrickJMT
This video shows us an example problem in which we must use the sum formula for sine in order to evaluate a trig expression exactly. Keep in mind, there are multiple ways for us to break up 195 degrees. As long as you are able to break up an angle measure into two angles whose trig values you know, you should be able to get the correct exact value. (For example, you could split 195 into 150 and 45, both of which you could figure out the necessary trig values for.
09 - The Quadratic Formula Explained, Part 1 (Practice Problems & Solutions)
By Math and Science
Quality Math And Science Videos that feature step-by-step example problems!
01 - The Distance Formula, Pythagorean Theorem & Midpoint Formula - Part 1 (Calculate Distance)
By Math and Science
Quality Math And Science Videos that feature step-by-step example problems!
Grade 9 Chemistry, Lesson 11 - Ionic Compounds Part 2
By Lumos Learning
An overview of ionic compounds with multivalent elements and polyatomic ions
ALL OF GRADE 9 MATH IN 60 MINUTES!!! (exam review part 3)
By Lumos Learning
Here is a great exam review video reviewing all of the main concepts you would have learned in the MPM1D grade 9 academic math course. The video is divided in to 3 parts. This is part 3: Geometry. In this video you will review parallel line theorems, pythagorean theorem, and volume/surface area of three dimensional shapes.
12 - What is Exponential Growth & Decay? (Half Life & Doubling Time) - Part 1
By Math and Science
Quality Math And Science Videos that feature step-by-step example problems!
20 - The Rational Root Theorem, Part 1 (Rational Roots of Polynomials)
By Math and Science
Quality Math And Science Videos that feature step-by-step example problems!