## Sector Area - Module 20.3 (IM2)

This integrated Math 2 lesson shows how to find the area of a sector of a circle. Fast-and-easy!...

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This integrated Math 2 lesson shows how to find the area of a sector of a circle. Fast-and-easy!...

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Here we use our circumference formula, and the angle measure of the arc, to find the arc length. We also show how to convert degree measures to radian measure....

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This lesson goes pretty fast, finding the circumference and area of circles....

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Opposite angles of a quadrilateral that's inscribed in a circle are supplementary. Fast-and-easy!...

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This lesson covers central angles and inscribed angles of circles....

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Hey, I hope you ROCK this test! IM3 is the bomb!!...

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This lesson shows the graphs, and we write the equations that give us the graphs. Remember, y = tan x has 1 period in "pi."...

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This lesson shows "Phase Shifts" by (h, k). Everything else is the same....

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This lessons shows the graphs of tangent and cotangent....

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The Secant (written sec) is the reciprocal of Cosine, and the Cosecant (written css) is the reciprocal of Sine. Here, we graph those functions. Love it!...

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This lesson shows how to write equations, given a graph....

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This lesson shows Stretching/Compressing the Sine and Cosine Graphs. Have fun! :)...

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This lesson shows proportions, geometric mean, and application problems involving similar triangles. (Sorry for the rush!)...

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Having a quiz soon? This lesson should help you prepare for that quiz. Good luck!! :) Sorry folks. I made an error. Section C, #1, I accidentally switched the cosine and sine values....

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This lesson shows why sin^2 + cos^2 = 1, and why tan = sin/cos. Then, using these, we can find other angles. :)...

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This lesson, we use our tricks, to get the trig functions of angles, both in degrees and radians....

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More tricks to memorizing the Unit Circle....

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This lesson revolves on the 45 - 45 - 90 Triangles, and the 30 - 60 - 90 Triangles, along with SOHCAHTOA....

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This lesson shows how to convert degrees to radians, and radians to degrees. We also introduce the Unit Circle in radians....

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Here we find the area, and use both the Law of Sines and Law of Cosines....

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This lesson lets us solve other triangles, that won't let us us Law of Sines....

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Here we derive the formula for finding area of triangles using trig....

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Here we derive the formula for the law of sines, using our area formula....

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This lesson shows what the Margin of Error (MOE) is, to use to calculate the sample size. This comes from the Confidence Intervals we built in the last lesson....

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Here we calculate confidence intervals for population proportions and population means....

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This lets us find areas (or probabilities or percents) under the Standard Normal Distribution by calculating a z-score....

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This lesson shows how to get the percent of data that falls within some standard deviations. Remember, 68-95-99.7 !...

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Here we are given a formula for finding the probability of a binomial distribution. Then we display the data using a histogram....

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Combinations are when order (or arrangement) does NOT matter....

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This lesson shows what a permutation is, and how to use that for probability questions....

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Here we go over the formulas from yesterday, and do an application problem....

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This lesson shows what a subset is, a complement, intersection, union, and a who lot more! Oh boy!...

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First recognize that the standard deviations are Unknown. Then, depending on which formula comes on whether the two variances are equal, or not equal....

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Here we use our graphing calculators to calculate a 2 sample Z-Test....

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This is a 2 sample Z-Test, because the population standard deviations are known. Lots of similar language here....

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This should get you ready for your upcoming quiz. Don't forget to look at the various sampling methods too (Mod 20.1). Good luck!...

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This lessons shows how to graph histograms and box plots ("box-and-whisker plots")....

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Here we do a z-test, a t-test, a p-test, and discuss whether to reject the null, or fail to reject the null hypothesis. Several examples to get you ready for your upcoming test....

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Here we discuss uniform distributions, normal distributions, and skewed distributions. We also go over mean, median, standard deviation (how to calculate), Quartile 1 and Quartile 3, along with the Interquartile Range (IQR)....

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This lesson talks about the different data gathering techniques....

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Both parts should get you ready for your upcoming test! :)...

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This lesson gives a few examples how to use a z-test, along with a rejection region, to determine whether to reject the null hypothesis, or fail to reject the null hypothesis....

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This is the first part of hypothesis testing for the mean, when the population standard deviation is known. This is a z-test statistic....

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This is when the population standard deviation is unknown. So, we use the t-test....

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This gives a couple of examples, a left-tailed test, and a two-tailed test. Proportions, p, are always a z-test statistic....

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This will get you ready for your test on Logs and Exponential Equations....

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Nothing like having fun with exponential equations involving word problems. :)...

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This lesson shows how taking logs of both sides of an equation helps solve equations when the variable is in the exponent. Love this lesson!!...

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