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Kkhansaheb replied to the thread A Return to Mathematics: Algebra 1.Incorrect. According to Google: As of 2023, the average life expectancy for men born in the United States was 75.8 years. Men aged 65...
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TFolks, I launched this forum somewhere around 2002. At the time I was a high school student with plenty of time for hobbies, and this...
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How many members here play a musical instrument and read standard music notation? -
mathdad replied to the thread Aging & Mathematics.Aging does not show up without negativity. I graduated from high school in 1984. After the graduation ceremony, I went outside the...
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mathdad replied to the thread PreCalculus - 9.1.1.For point (3, -1), the value of x is 3 and the value of y is -1. The general point (x, -y) lies in quadrant 4.
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\textcolor{indigo}{\bold{Solve.}} Plot the point whose rectangular coordinates are (3,-1). What quadrant does the point lie in?
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mathdad replied to the thread PreCalculus - 8.1.1.I never forgot (leg)^2 + (leg)^2 = (hyp)^2. (leg)^2 + (3)^2 = (5)^2 (leg)^2 + 9 = 25 (leg)^2 = 25 - 9 (leg)^2 = 16 After taking the...
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\textcolor{indigo}{\bold{Solve.}} In a right triangle, if the length of the hypotenuse is 5 and the length of one of the other sides is...
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mathdad replied to the thread PreCalculus - 7.1.1.For this one, I will need to guess. Here's my answer without cheating: Domain = (-infinity, infinity) Range = [-1, 1] Yes?
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\textcolor{indigo}{\bold{Solve.}} What are the domain and the range of y = \sin x?
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mathdad replied to the thread PreCalculus - 6.1.1.1. C = 2(pi)r 2. A = pi(r^2)
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\textcolor{indigo}{\bold{Solve.}} What is the formula for the circumference C of a circle of radius r? What is the formula for the area...
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I like this teacher but too pricey. What do you think about the following website? Calculus - Course Topics...
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mathdad replied to the thread PreCalculus - 5.1.1.Thank you for taking the time to check my work and for your professionalism.
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\textcolor{blue}{\bold{Correct.}} 👏👏
