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1. ### How do I figure out the exponential functions that pass through the pair of points (1, .3) and (3, .003)?

How about f(x) = 3*10^(-x) ? Maybe more obvious if you write the points as (1, 3/10^1) and (3, 3/10^3).

1 Answers · Science & Mathematics · 01/07/2009

2. ### Need help finding an equation of the following two lines ...?

1) Find an equation of the line through points (-5, -1) and (-6, 10) we need to find the m and c for the equation y=mx+c m= (10--1)/(-6--5)= 11/-1 =-11...

3 Answers · Science & Mathematics · 05/11/2011

3. ### A coin is tossed and a die with numbers 1–6 is rolled. What is P(heads and 3)?

... from a deck of cards numbered 1 through 10. P(even number, even number) = (5/10...20/36 = 4/9 ----------------------------- 7) P(sum 2) = 1/36 ------pair (1,1) P( sum 12) = 1/36 -------pair (6...

2 Answers · Science & Mathematics · 28/02/2012

4. ### Who cam do these? 10 pts!?

...or m) = -a/b Gradient is 3 and point through (-2,1) Using the point gradient form you come up with an...this is horizontal ( ----- ) Point @ ( -7 , 10) so look at the y axis = 10 Therefore line...

5 Answers · Science & Mathematics · 22/07/2012

5. ### How do I write a standard equation for a circle?

... of center (a, b) plug in the coordinates of the point to find r (-1 + 4)^2 + (3 + 1)^2 = r^2 3^2 + 4^2 = r^2 9 + 16 = r^2 25 = r^2 r = 5 (x+4...

5 Answers · Science & Mathematics · 14/05/2009

1) a linear function through the points (3,6) (2,7) (0,10) no answer, three points not on a line. 2) a quadratic function with a graph that does not intercept the x axis and its vertex is (-6,-4) y = -(x+6)^2 - 4...

1 Answers · Science & Mathematics · 01/07/2013

7. ### 1/10(20x+30)=1/5(10x+10)-3 solve the linear equation?

(1/10)(20x + 30) = (1/5)(10x + 10) - 3 Multiply through by 10: 20x + 30 = 2(10x + 10) - 30 20x + 30 = 20x + 20 - 30 20x + 30 = 20x - 10 30 = -10 IMPOSSIBLE

3 Answers · Science & Mathematics · 13/02/2011

8. ### I am having problem with this Physics Problem!!!?

I2=I1 e^(-t/CR) where I1=initial charge, I2=final charger, C=capacitance, R=resistance 9.00 = 30.0e^[-t/(10.0*1.70)] ln e^[-t/(10.0*1.70)] = ln (9/30) -t/17 = ln (3/10) t = -17ln(3/10) t = 20.4675s

2 Answers · Science & Mathematics · 07/11/2008

9. ### How to find an equation of the line passing through (-10, 15) and perpendicular to the line y=1?

... = Something. All we need to do is create a line that includes the X value (-10). X=-10 2.) First first the slope of the equation 2x-1/3y+1=10. Put it into standard form ax+bx+c...

5 Answers · Science & Mathematics · 25/10/2013

10. ### how do you graph the line with slope 1/2 passing through the point (2,-1)?

Start at the point (2, -1) Move two to the right and one up (or move 10 to the right and 5 up, or 20 to the right and 10 up, or any other multiple of 2 to the right and 1 up). Draw a line through the points

3 Answers · Science & Mathematics · 31/01/2010