Total # Posts: 23
Statistics and Probability
Drawing from a set of six blue beads and three gold beads, use ratios to state the likelihood of each color being drawn; conducts experiments to test predictions. Show your work and explain your answer.
July 11, 2012
The vase company designs a new vase that is shaped like a cylinder on bottom and a cone on top. The catalog states that the width is 12 cm and the total height is 42 cm. What would the height of the cylinder part have to be in order for the total volume to be 1224pi cm cubed?
July 9, 2012
The speedometer of John's truck uses the revolutions of his tires to calculate the speed of the truck. How many revolutions per minute do the tires make when the truck is traveling at 55 miles per hour? (picture with tires with diameter of 26 in.) Suppose John buys tires ...
May 11, 2011
TRIATHLONS Irena is training for an upcoming triathlon and plans to run 12 miles today. Jorge offered to ride his bicycle to help her maintain her pace. If Irena wants to keep a steady pace of 6.5 minutes per mile, how fast should Jorge ride in miles per hour? Thank you so ...
May 10, 2011
The Zalinsky family can drive the 220 miles to their cabin in 4 hours at 55 miles per hour. Son Jeff claims that they could save half an hour if they drove 65 miles per hour, the speed limit. How long will it take the family if they drive 65 miles per hour? My solution is 3 ...
April 28, 2011
Triangle LMN hes vertices at L(-4,-3), M(2,5), and N(-13,10). If the distance from point P(x,-2) to L equals the distance from P to M, what is the value of x? Could you be so nice and help me please. I tried so hard but I couldn't find the same solution x=3. Thank you so ...
April 14, 2011
The formula T=2*pi*sqrt[L/32] gives the period of a pendulum of length l feet. The period P is the number of seconds it takes for the pendulum to swing back and forth once. Suppose we want a pendulum to complete three periods in 2 seconds. How long should the pendulum be? ...
April 11, 2011
The formula T=2*pi*sqrt[L/g] gives the period of a pendulum of length l feet. The period P is the number of seconds it takes for the pendulum to swing back and forth once. Suppose we want a pendulum to complete three periods in 2 seconds. How long should the pendulum be?
April 10, 2011
A rectangle is 4 inches wide by 7 inches long. When the length and width are increased by the same amount, the area is incresed by 26 square inches. What are the dimensions of the new rectangle?
February 27, 2011
Every day for 11 days, Tylia saw 23 sport cars pass her bedroom window. Write a numerical expression to describe how many sports cars she saw in all. Rewrite the expression using the Distributive Property so that you can mentally calculate how many sports cars she saw.
February 24, 2011
when you pedal a bicycle maximum torque is produced when the pedal sprocket arms are in the horizontal position and no torque is produced when in the vertical position, explain?
April 28, 2009