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Solve for
y
if $y = (e^x + e^{-x})^2 - (e^x - e^{-x})^2$.
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More Old MCQ
Orphaned Multiple Choice Questions (MCQ) due to changes of exam system.
If the interest rate on an account is 8.5% compounded yearly, approximately how many years will it take to triple the amount?
k2X6fTJ-2 Find the rate of pipe C in liters per minute
An equilateral triangle is inscribed within a circle whose diameter is 12 cm. In this triangle a circle is inscribed; and in this circle, another equilateral triangle is inscribed; and so on indefinitely. Find the sum of the areas of all the triangles.
The value of $x$ in the equation $\log_{10} (x^2 - 15x) = 2$ are:
Spherical degree is a unit of a spherical area taken as 1/720 of the surface of the sphere. How many spherical degrees hemispheres have?
The sum of the interior angles of a polygon of n sides is four times the sum of its exterior angles. Find the value of n.
How many 3-digit numbers greater than 300 can be made out from digits 0, 1, 2, 3, 4, 5, and 6 if repetition of digit is not allowed?
A man and a boy can do in 15 days a piece of work which could be done by 7 men and 9 boys in 2 days.
Given a water droplet with surface tension $\sigma$ and gage pressure $\Delta p$, determine its diameter.
The sum of the digits of a two-digit number is 11. When the digits are reversed, the new number exceeds the original number by 9. From the original number, calculate the product of tens digit to the square of the units digit.
Given that w varies directly as the product of x and y and inversely as the square of z and that w = 4 when x = 2, y = 6, and z = 3. Find the value of w when x = 1, y = 4, and z = 2.
If 8 men can cut 22 trees in a day, how many trees can 20 men cut in a day?
How many 3-digit numbers greater than 300 can be made out from digits 0, 1, 2, 3, 4, 5, and 6 if repetition of digit is not allowed?
A wall 10 ft high along the property line is 8 ft from a house.
Line AB has point A(4, 5) and point B(-3, -2). Find point C along line AB if distance BC is three times the distance AC.
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