# Yahoo Web Search

1. ### if v varies jointly as h and the square of b: and v is 288 when h=6 and b =12, find v when h=3 and b =10?

v ∝ hb² v = khb², where k = constant of proportionality 288 = k(6)(12)² k = (1/3) So, v = (1/3) hb² Now, when h = 3 and b = 10, v = (1/3)(3)(10)² = 100

1 Answers · Science & Mathematics · 01/12/2009

2. ### How do you calculate the horizon distance by altitude?

... is right Thus Pythagore says : OH² + HB² = OB² or R² + HB² = (R + h)² = R²...

1 Answers · Science & Mathematics · 20/02/2008

3. ### Basic Trig...Solve for x?

...triangle is right at the point H. You can write: x² = HB² + HC² → where: HB = HA + AB x² = [HA...

3 Answers · Science & Mathematics · 04/11/2014

4. ### Geometry...help??

...rectangle. Area of ||gram = 1/2(xh) + yh + 1/2(xh) = xh + yh = h(x+y) = hb1 = hb2 , since b1 = b2 = x+y Now, if we flip the triangle on the right over, so...

2 Answers · Science & Mathematics · 12/02/2008

5. ### I have a geometry question?

...3/6 ==> AB² = 3c²/36 = c²/12 HB = c√3/2 ==> HB² = 3c²/4 AH = ? Pythagoras again HB² = AB²...

1 Answers · Science & Mathematics · 09/05/2012

6. ### math HW help? 10 pts for best?

(hb1+ hb2 )/2

1 Answers · Science & Mathematics · 21/05/2013

7. ### A= 1/2 h(b1 + b2), solve for b1?

A= 1/2 h(b1 + b2) 2A = h(b1 + b2) 2A = hb1 + hb2 2A - hb2 = hb1 ..........2A - hb2 b1 = ----------------- answer// ..............h

5 Answers · Science & Mathematics · 10/05/2012

8. ### Need help with algebra question?

Expand A=1/2hb1+1/2hb2 Subtract 1/2hb1 1/2hb2=A-1/2hb1 Multiply by 2 hb2 =2A-hb1 divide by h b2=2A/h-b1

3 Answers · Science & Mathematics · 30/08/2008

9. ### Solving literal equations?

Presentation !! A = (1/2) * h[b1 + b2] clear the denominator...multiply by 2 2A = h(b1 + b2) distribute... 2A = hb1 + hb2 hb1 = 2A - hb2 b1 = (2A - hb2 )/h archimedes

3 Answers · Science & Mathematics · 09/01/2014

10. ### Calculus problem?

...base with height of h and base of b. So its volume is V = hb² . From the question h + 4b = 108 So h = 108-4b Sub this back...

2 Answers · Science & Mathematics · 25/11/2007