blue book math questions

<p>I have a question on how to go about solving these 2 problems
1:
find ab in this equation:
(a^(1/2)<em>b^(1/3))^6 = 432
I can get it down to a^3</em>4^2=432, but I don't know what to do after that.</p>

<p>2:
h(t) = c-(d-4t)^2
at time t=0, a ball was thrown upward from an initial height of 6 feet. Until the ball hit the ground, its height, in feet, after t seconds was given by the function h above, in which c and d are positive constants. If the ball reached its maximum height of 106 feet at time 2.5, what was the height, in feet, of the ball at time t=1</p>

<p>-thanks for any help</p>

<p>look in Updated</a> Consolidated List of Blue Book Math Solutions</p>

<ol>
<li>factor 432 into 27 and 16, so the answer is 3*4=12</li>
</ol>

<ol>
<li>solve for c and d, which are 106 and 10, then plug in to get 70</li>
</ol>