Pre-calculus Math Questions and Math Answers

Pre-calculus Math questions posted by students and math answers posted by experienced online math tutors.

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Frank Thomas, a baseball player with the Chicago White Sox, was the Most Valuable Player for the 1994 season. When he hits the ball well, it leaves t... 05/09/2019 23:58
A doll sold for $280 in 1980 and was sold again in 1990 for $414. Assume that the growth in value V of the collector's item is exponential. Find the v... 04/29/2019 16:11 Answered By: Jennifer
The population of a colony of mosquitoes obeys the law of uninhibited growth. If there are 1000 mosquitoes initially and there are 1600 after 1? day, ... 04/15/2019 01:02 Answered By: Amynah
The half-life of iodine-135 is 8 days and suppose you start with 400 grams. a. Determine the continuous decay model for the amount remaining t day... 04/14/2019 19:01
Determine the number of solutions to the following system of linear equations for all real numbers a: (4-a)x+2y-z=1 -2x+(1-a)y-2z=-2 -x+2y+(4-a)... 04/06/2019 02:37
A cat's purr is 25 decibels. If the sound of a lion roaring can reach an intensity that is 790 000 000 more intense than the sound of a purring cat, w... 12/20/2018 16:59
Determine the value of k so that the function: f(x) = (k.cos 2x)/?-4x if x!=?/4 5 if x=?/4 is contin... 11/27/2018 01:09
Https://i.stack.imgur.com/a2Lqh.jpg Question number 2... 07/24/2018 23:39
Show the center, foci,vertices,and the endpoints of the minor axis: x²+25y²-4x=21... 07/17/2018 09:55
Is is possible to solve for n in x_n=(1.618^n + (1-1.618)^n)/sqrt(5)... 03/28/2018 06:16 Answered By: Jen
Cot(t)=0.58 and cos(t)=0.5 find csc(t)... 03/26/2018 02:26 Answered By: Elizabeth
# X²/x²-4 - x+1/x+2 (simplify rational expressions) # 2x(4-x)-½ - 3?4-x. =0 (solve the equations, only real solution) i need help plz show... 01/27/2018 18:55
The density of lead is 11.34 g/cm cubed and the density of aluminum is 2.69 g/cm cubed. Find the radius of lead and aluminum spheres each having a mas... 09/05/2017 00:56
You have 2200 ft. of fencing for a playground the will be divide into two equal parts. Write the equation for the area in terms of x.... 08/19/2017 17:01
How do you identify properties of a polynomial function’s graph and use them to graph?... 04/17/2017 00:38 Answered By: Rebecca
Let a = cos( ?^2)? Which of the following is true? (a) a = ?1 (b) -1 < a ? -1/2 (c) -1/2 < a ? 0 (d) 0 < a ? 1/2 (e) 1/2 < a ? 1... 03/07/2017 06:37
A line segment has (x1, y1) as one endpoint and (xm, ym) as its midpoint. Find the other endpoint (x2, y2) of the line segment in terms of... 02/05/2017 02:10 Answered By: Ajit

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