Thursday

March 5, 2015

March 5, 2015

Posted by **Jim** on Wednesday, December 12, 2012 at 9:28pm.

- calculus -
**bobpursley**, Wednesday, December 12, 2012 at 9:47pmdraw the figure.

she runs d1 down stream. that leaves 5-d1 left. The distance from that point to the end point is then

sqrt((5-d1)^2+1.5^2)= sqrt(xxxx)

time = d1/16 p + sqrt(xxxx )/5 p I dont know what the p is in kmp.

dtime/d1=0=1/16+1/2 ( xxxx )^-1/2 *2(5-d1)(-1)

1/16=(5-d1)/sqrt(xxxx)

multiply both sides by sqrt(xxxx)

then square both sides, you should get a quadratic and can solve d1.

**Answer this Question**

**Related Questions**

calculus - A man launches his boat from point A on a bank of a straight river, 3...

Physics - A boat is to be driven from a point on the South bank of a river which...

calculus - you stand on the shore of a circular lake and you wish to reach the ...

calculus - A power station is on one side of a river that is 0.5 mile wide, and ...

physics - Noah wants to swim across a river 10 m wide, flowing from north to ...

physics - Noah wants to swim across a river 10 m wide, flowing from north to ...

Math - Corey jogs 5km every morning to get ready for a 5km race he is going to ...

physics - Hey thanks for the help: I have another question: A swimmer is capable...

calculus - A power station and a factory are on opposite sides of a river 50 ...

math - A power station is on one side of a river that is 3/4 mile wide, and a ...