|
GWD
|
For the first time in the modern era, non-Hispanic Whites are officially a minority in California, which amounts to a little less than half the population of the state, down from nearly three-quarters only a decade ago.
|
|
GWD
|
Leaching, the recovery of copper from the drainage water of mines, as a method of the extraction of minerals, it was well established as early as the eighteenth century, but until about 25 years ago miners did not realize that bacteria take an active part in the process.
|
|
PREP2012
|
The second paragraph functions primarily to
|
|
PREP07 Test 1
|
Last year a certain bond with a face value of $5,000 yielded 8 percent of its face value in interest. If that interest was approximately 6.5 percent of the bond's selling price,approximately what was the bond's selling price?
|
|
PREP07 Test 1
|
$$\frac{({8}^{2})({3}^{3})({2}^{4})}{96^2}$$
|
|
PREP07 Test 1
|
At a speed of 50 miles per hour, a certain car uses 1 gallon of gasoline every 30 miles.If the car starts with a full 12 gallon tank of gasoline and travels for 5 hours at 50 miles per hour, the amount of gasoline used would be what fraction of a full tank?
|
|
PREP07 Test 1
|
 For the 5 days shown in the graph, how many kilowatt-hours greater was the median daily electricity use than the average (arithmetic mean) daily electricity use?
|
|
PREP07 Test 1
|
38, 69, 22, 73, 31, 47, 13, 82Which of the following numbers is greater than three-fourths of the numbers but less than one-fourth of the numbers in the list above?
|
|
PREP07 Test 1
|
If xy = 1, what is the value of $$\frac{{2}^{(x+y)^2}}{{2}^{(x-y)^2}}$$ ?
|
|
PREP07 Test 1
|
At a certain university, the ratio of the number of teaching assistants to the number of students in any course must always be greater than 3:80. At this university, what is the maximum number of students possible in a course that has 5 teaching assistants?
|
|
PREP07 Test 1
|
for any integer k from 1 to 10, inclusion, the kth of a certain sequence is given by $$(-1)^{k+1}(\frac1 {2^k})$$. If T is the sum of the first 10 terms of the sequence, then T is:
|
|
PREP07 Test 1
|
Three grades of milk are 1 percent, 2 percent, and 3 percent fat by volume. If x gallons of the 1 percent grade, y gallons of the 2 percent grade, and z gallons of the 3 percent grade are mixed to give x + y + z gallons of a 1.5 percent grade, what is x in terms of y and z ?
|
|
PREP07 Test 1
|
Mark bought a set of 6 flower pots of different sizes at a total cost of $8.25. Each pot cost $0.25 more than the next one below it in size. What was the cost, in dollars, of the largest pot?
|
|
PREP07 Test 1
|
$$\sqrt{576800}$$ is between
|
|
PREP07 Test 1
|
 The table above shows the distribution of scores on a geography quiz given to a class of 25 students. Which of the following is closest to the average (arithmetic mean) quiz score for
the class?
|
|
PREP07 Test 1
|
Which of the following is an integer?I. $$\frac{12!}{6!}$$II. $$\frac{12!}{8!}$$III. $$\frac{12!}{7!5!}$$
|
|
PREP07 Test 1
|
Circular gears P and Q start rotating at the same time at constant speeds. Gear P makes 10 revolutions per minute, and gear Q makes 40 revolutions per minute. How many seconds after the gears start rotating will gear Q have made exactly 6 more revolutions than gear P ?
|
|
PREP07 Test 1
|
Mary purchased 3 theater tickets with an average (arithmetic mean) price of $8. If Mary also purchases a fourth theater ticket with a price of $16, what is the average price of all 4 theater tickets?
|
|
PREP07 Test 1
|
Which of the following inequalities has a solution set that, when graphed on the number line, is a single line segment of finite length?
|
|
PREP07 Test 1
|
If n is a multiple of 5 and n = $${p}^{2}{q}$$, where p and q are prime numbers, which of the following must be a multiple of 25 ?
|