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Solve for
x
if $\dfrac{e^x + e^{-x}}{2} = 1$.
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More Old MCQ
Orphaned Multiple Choice Questions (MCQ) due to changes of exam system.
The top of the tower signal at B 2000 m away from A was sighted through a transit with recorded vertical angle of 3deg30min.
The Department of Health encourages elderly people to have a flu vaccination each year.
In how many ways can 5 engineers and 4 nurses be arranged in a round table if the nurses insisted to be sitting side by side?
What time between 2 and 3 o’clock will the angle between the hands of the clock be bisected by the line connecting the center of the clock and the 3 o’clock mark?
Express the following statement mathematically: 5 less than four times a certain number is 12.
An airline company known for its promo fare receives on an average 9.7 complaints per day. Using Poisson probability distribution formula, find the probability that on a certain day this airline company will receive exactly 8 complaints.
At an ordinary rate a man can row the distance from Pasig to Manila, about 15km, in 5 hours less time than it takes him to return.
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.
A boy playing under the street-light noticed that the length of shadow of his 5-foot stick erected vertically on the pavement, is 20 inches.
Find the slope of the line passing through the points (2, 6) and (2, -4).
A student in a chemistry laboratory wants to form a 32-milliliter mixture of two solutions to contain 30% acid. Solution A contains 42% acid and solution B contains 18% acid. How many milliliters of each solution must be used?
lXCn0Dq-2 How far is point E from corner A in meters?
How many different fractions less than 1 can be formed using the numbers 2, 3, 5, 7, and 9?
Let $f(x)=\sin x - \cos x$. Find the 2021st derivative of $f$.
Suppose a population is normally distributed with a mean of 24.6 and a standard deviation of 1.3. What percentage of data will lie between 25.3 and 26.8?
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