Sunday
December 8, 2013

# Posts by jeffrey

Total # Posts: 42

calculus
A spherical balloon is being inflated so that its volume is increasing at the rate of 200 cm3/min. At what rate is the radius increasing when the radius is 15 cm.

math
A balloon rises at a rate of 3 meters per second from a point on the ground 30 meters from an observer. Find the rate of change of the angle of elevation (in radians per second or rad/sec) of the balloon from the observer when the balloon is 30 meters above the ground.

math
A right circular cylinder is to be designed to hold 750 cm3 of processed milk, and to use a minimal amount of material in its construction. Find the dimensions for the container.

math
A cardboard box manufacturer wishes to make open boxes from rectangular pieces of cardboard with dimensions 40 cm by 60 cm by cutting equal squares from the four corners and turning up the sides. Find the length of the side of the cut-out square so that the box has the largest...

physics
static friciton is greater than sliding friction prove

Science
dilute

7 Mathematics
A team of 4 golfers scored 69,73,70, and 74 on the first round on a par 72 course. They reduced their team score by 3 on the second round. a) How many strokes above or below par was the team score on the first round? b) How many strokes about or below par was the team score on...

Probability as a Fraction
In a bag there are 7 red tiles, 3 blue tiles, and 2 purple tiles. How many and what color tiles would you have to add to the bag so that the probability of picking red is 1/3?

math
Given the following equation x,y data pairs find the least squares equation for these data. Use 3 decimal places. Y equals what + what x(3,3)(4,5)(6,8,)

math
given the following equations x,y data pairs find the least squares equation fo these data. use 3 decimal places. Y equals what + what x (3,3)(4,5)(6,8)

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