If a + b + c = 12, a + b = 4, and a + c = 7, what is the value of a?
The set of points defined by the equation x2+y2+z2=4 is
Which of the following is an equation whose graph is a set of points equidistant from the points (0, 0) and (6,0)?
Which of the following is equivalent to a - b≥a+b?
If m and n are in the domain of a function g and g(m) > g (n), which of the following must be true?
If loga2 = a and loga5 = b then loga50
In a certain office, the human resources department reports that 60% of the employees in the office commute over an hour on average each day, and that 25% of those employees who commute over an hour an average each day commute by train. If an employee at the office is selected at random, what is the probability that the employee commutes over an hour on average by train?
To the nearest degree, what is the measure of the second smallest angle in a right triangle with sides 5, 12 and 13?
Of the following list of numbers, which has the greatest standard deviation?
If A is an integer, which of the following CANNOT be inferred from the statement above?
In how many different orders can 8 different colors of flowers be arranged in a staight line?
If the height of a right square pyramid is increased by 12%, by what percent must the side of the base be increased, so that the volume of the pyramid is increased by 28%?
In country A, the first 1,000 dollar of any inheritance are untaxed. After the first 1,000 dollar, inheritances are taxed at rate of 65%. How large must an inheritance be, to the nearest dollar, in order to amount to 2,500 dollar after the inheritance tax?
If the second term in an arithmetic sequence is 4, and the tenth term is 15, what is the first term in the sequence?
In a engineering, test, a rocket sled is propelled into a target. If the sled's distance d in meters from the target is given by the fomula d = - 1.5 t2+120, where t is the number of seconds after rocket ignition, then how many seconds have passed since rocket ignition when the sled is 10 meters from the target?
If ex = 5, , then x = ?
A right triangle has sides in the ratio of 5 : 12 : 13. What is the measure of the smallest angle in the triangle, in degrees?
If k is an integer and k = 462n, then which of the following could be the value of n?
How many positive integers less than 100 have a remainder of 2 when divided by 13?
6
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9
What is the slope of a line containing the points (1, 13) and (-3, 6)?