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Problem: Sports medicine - A simple rule of thumb for determining your maximum safe heart rate (in beats per minute) is to subtract your age from 220. While exercising, you should maintain a heart rate between 60% and 85% of your maximum safe rate.
(A) Find a linear model for the minimum heart rate m that a person of age x years should maintain while exercising.
(B) Find a linear model for the maximum heart rate M that a person of age x years should maintain while exercising.
(C) What range of heartbeats should you maintain while exercising if you are 20 years old?
(D) What range of heartbeats should you maintain while exercising if you are 50 years old?
evaluate the tangent line approximation of the two values and compare with the true valuefind the tangent line
Suppose P ⊂ Rn is a full dimensional simple polytope, and 0 ∈∫(P). Prove that Po is a simplicial polytope
Find the measure of the exterior angle x where ∠x = ( 197 - 5n)°, ∠y = ( 5n + 21)°, ∠z = (n + 11)°
As reported by Runner's World magazine, the times of the finishers in the New York City 10-km run are normally distributed with a mean of 61 minutes and a standard deviation of 9 minutes. Let X be the finishing time for a finisher in the New York ..
A state motor vehicle department requires learners to pass a written test on the motor vehicle law of the state. The exam consists of ten true-false questions, of which eight must be answered correctly to qualify for a permit. in how many differen..
A line passes through the point (6, -6) and has a slope of -3. Write an equation for this line in (x, y) coordinates. Write equations for the vertical and the horizontal lines passing through the point (6, 1) in (x,y) coordinates.
A bit vector is simply an array of bits (0's and 1's). A bit vector of length m takes much less space than an array of m pointers. Describe how to use a bit vector to represent a Dynamic Set of Distinct Elements with no Satellite Data. Dictionary ..
a train travels 190km in the same time a plane travels 665km.if the speed of the plane is 40km per hour less than 4 times the speed of the train, what are both speeds?
there are 870 students taking College Algebra or Calculus. 385 are taking College Algebra, 537 are taking Calculus, and 52 are taking both College Algebra and Calculus. How many are taking Algebra but not Calculus?
a mountain is 17,729 feet above sea level, and a valley is 212 feet above sea level. What is the difference in elevation between the mountain and the valley?
The second can has twice the diameter of the first and is half as tall. Find the ratio of the amount of juice in the second can to the amount of juice in the first can.
An airplane flying into a headwind travels 216 miles in 2 hours and 42 minutes. On the return flight, the distance is traveled in 2 hours. Find the airspeed of the plane and the speed of the wind, assuming that both remain constant.
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