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Every student in a certain program of studies takes all three of courses A, B, and C. The average enrollment in the program is 50 students.Past history shows that on the average:
(1) 5 students in course A receive marks of at least 75%.
(2) 7.5 students in course B receive marks of at least 75%.
(3) 6 students in course C receive marks of at least 75%.
(4) 80% of students who receive marks of at least 75% in course A also do so in course B.
(5) 50% of students who receive marks of at least 75% in course B also do so in course C.
(6) 60% of students who receive marks of at least 75% in course C also do so in course A.
(7) 10 students receive marks of at least 75% in one or more of these classes. A sponsor gives a scholarship of $500 to anyone who receives a mark of at least 75% in all three courses. What can the sponsor expect to pay on average?
Determine 2 numbers such that the difference of its squares is 120 and the sum is 6. If I have 30 coins of two kinds 5 cents and 1 cent can I have a total of 78? A rectangle has a perimeter of 392 m calculate its dimensions if the length is 52 m long..
a trough is 10ft long and its ends have the shape of isoceles triangles that are 3ft across at the top and have a
What root property is essential to solve any radical equation involving square root? Use examples to help explain.
Mike and Sally went to the grocery store with 180$. Mike bought a nerf gun for 7$, a pound of oranges for $1.89, and A TV for $68. How much money does Mike and Sally have now?
Identify and sketch the graph of the conic described by the quadratic equation x^2 + 4xy + y^2 - 12 = 0. Do this by writing this equation in matrix form
An object with mass m1=1 kg, moving with velocity v1=5.00 m/s, has a perfectly inelastic collision with other object, having mass m2=3 kg in rest (v2=0 m/s). After the collision, two objects are stuck together and move with velocity v3. Calculate val..
Suppose that f_n(0) converges to some number, denoted f(0), and also suppose that the sequence (f'_n) converges uniformly on (0,1) to some function g: (0,1) -> R. Prove that the sequence (f_n) converges uniformly. What is its limit?
The lateral area of a cone is 558 cm. The radius is 31 cm. Find the slant height to the nearest tenth.
Marcie gets paid $1.25 an hour to babysit her little brother. If she babysits for 3 hours, how much money do Marcie's parents owe her?
the length and width of a rectangular prism are 5.5cm and 3cm.the heigth of the prism is 6.75cm. find the exact value of the surface area of the prism in square centimeters.
the future lifetimes tx and ty are independent and each has the distribution de?ned by the p.d.f.fy 0.0210 - t 0 lt t
Find the maximum height of ball using given equation - Use the formula to determine how long it takes the ball to return to the earth.
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