Wednesday

April 16, 2014

April 16, 2014

Number of results: 11

**Maaaath**

the height h is h(t) = 320 + 128t - 16t^2 The vertex of this parabola is at t = 4 So, figure h(4)
*Thursday, June 13, 2013 at 10:06pm by Steve*

**Maaaath**

6/x + 6/x-5 = 1 I got to x^2 -17x +5 = 0 But I have no idea if that is right? How do I find the answer? Thanks 6/x 6/x-5 =1 multiply both sides by x x(6/x +6/x-5)= (1) x The denominator x will cancel giving: 6 + 6 --- = x -5 Now -5 into 6 = -1.2 so 6 -1.2= x x= 4.8
*Monday, May 28, 2007 at 1:43pm by Emma*

**hellllllllllllllp maaaath**

Hmmm. I don't buy it. You can't have x = 1/√2 , y = 41/√2 , and k = 21√2 and x^2 + (y-k)^2 = 1^2 Maybe I'll visit the figure.
*Wednesday, May 15, 2013 at 8:27am by Steve*

**hellllllllllllllp maaaath**

My bad. I misread it. Even after looking at it several times, I still saw 21/√2 rather than 21√2.
*Wednesday, May 15, 2013 at 8:27am by Steve*

**Maaaath**

a stone thrown upward from the top of a 320-foot cliff at 128 ft/sec eventually falls to the beach below? how long does the stone take to reach its highest point?
*Thursday, June 13, 2013 at 10:06pm by Rachel*

**hellllllllllllllp maaaath**

ABCD is a square. P is a point within ABCD such that PA=1,PB=29 and PC=41. What is area of square ABCD ?
*Wednesday, May 15, 2013 at 8:27am by Anubhav*

**hellllllllllllllp maaaath**

x^2 + (y-k)^2 = (1/√2)^2 + (41/√2 - 21√2)^2 ,,,,,, 21√2 = 42/√2 = 1/2 + (-1/√2)^2 = 1/2+1/2 = 1
*Wednesday, May 15, 2013 at 8:27am by Reiny*

**Maaaath!!!**

A woman is three times as old as her daughter, but in 12 years she will be just twice as old as her daughter. How old is the daughter now and how hold is the woman now?
*Friday, February 12, 2010 at 8:35pm by Courtney*

**Maaaath!!!**

When a woman is as old as her father is now, she will be five times as old as her son is now. By then, her son will be eight years older than she is now. The combined ages of her father and herself are 100 years. How old is her son?
*Friday, February 12, 2010 at 8:35pm by ael*

**Maaaath!!!**

W = 3 D W + 12 = 2 (D + 12) = 2D + 24 Solve for woman's current age (W) and her daughters current age (D) 3D + 12 = 2D + 24 D = 12
*Friday, February 12, 2010 at 8:35pm by drwls*

**hellllllllllllllp maaaath**

I started by placing a square of sides k so that one vertex is at B(0,0), and letting sides fall on the x and y axes so the other vertices are C(k,0), D(k,k) and A(0,k) I let point P be (x,y) PO = 29 ----> x^2 + y^2 = 29^2 PA = 1 -----> x^2 + (y-k)^2 = 1^2 PC = 41 ----&...
*Wednesday, May 15, 2013 at 8:27am by Reiny*

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