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Find the speed of the cyclist algebraically.
Brenda and her husband Randy bicycled cross-country together. One morning, Brenda rode 30 miles. By traveling only 5 miles per hour faster and putting in one more hour, Randy covered twice the distance Brenda covered. What was the speed of each cyclist?
Find the height of the ball drop and the time taken to reach the ground.
A ball is dropped from a height of 64 feet. Its height above the earth in feet is given by h(t ) =16t2+ 64, where t is the number of seconds after it is dropped. a) Find h(1). b) How long does it take the ball to fall to the earth?
During the first part of a trip, a canoeist travels 48 miles at a certain speed. The canoeist travels 19 miles on the second part of the trip ata speed 5 mph slower. The total time for the trip is 2 hrs. What was the speed on each part of the trip..
What percentage of Americans earn below $20,000? What percenage of Americans earn above $ 43,000?
A bullet of mass 0.04 kg travelling at 300 m/s hits a fixed wooden block and penetrates a distance of 4cm. Find the average resistance of the wood.
A video store charges a monthly membership fee of $7.50, but the charge to rent each movie is only $1.00 per movie. Another store has no membership fee, but it costs $2.50 to rent each movie. How many movies need to be rented each month for the to..
Students receive scores rounded to the nearest 10. What is the interval of student scores that lie within one standard deviation of the mean?
while commuting to work in orlando,florida.marcia drives one-half the distance that melissa drives each day john drives 17 miles more than melissa each day.in one day.these three people drive 112 miles communiting to work.
Consider y''+9y=t^2(cos(3t)+4sin(3t)). This has homogeneous solution C1cos(3t)+C2sin(3t). Use method of undetermined coefficient to find a particular solution.
Estimate the relative error in the calculated surface area.
Determine the limit by evaluating the function for x = 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 20, 50, and 100, If an answer does not exist, enter DNE.
suppose for a certain company C(x)=25 x+300,000 represents the total cost function and R(x)=75x represents the total revenue function. Find the total-profit function and break even.
How quickly is the distance between the ships changing at midnight?
Use vector techniques to prove that a triangle and its medial triangle have the same centroid. You may take it as a given fact that the location of the centroid of triangle ABC is the vector (vector OA + vector OB + vector OC)/3.
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