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OG18分册   题数:177
If x + y = 2 and x2+y2=2 , what is the value of xy ?
Points A, B, C, and D, in that order, lie on a line. If AB =3 cm, AC = 4 cm, and BD = 6 cm, what is CD, in centimeters?
What is the value of x2 yz - xy z2 , if x = -2, y= 1 , and z = 3 ?
If x > y and y > z, which of the following represents the greatest number?If x > y and y > z, which of the following represents thegreatest number?
To order certain plants from a catalog, it costs $3.00 per plant, plus a 5 percent sales tax, plus $6. 95 for shipping and handling regardless of the number of plants ordered. If Company C ordered these plants from the catalog at the total cost of $69. 95, howmany plants did Company C order?If x > y and y > z, which of the following represents thegreatest number?
Company C produces toy trucks at a cost of $5.00 each for the first 1 00 trucks and $3.50 for each additional truck. If 500 toy trucks were produced by Company C and sold for $10.00 each, what was Company C's gross profit?If x > y and y > z, which of the following represents thegreatest number?
A group of store managers must assemble 280 displays for an upcoming sale. If they assemble 25 percent of the displays during the first hour and 40 percent of the remaining displays during the second hour, how many of the displays will not have been assembled by the end of the second hour?If x > y and y > z, which of the following represents thegreatest number?
Of the following, which is least?If x > y and y > z, which of the following represents thegreatest number?
The maximum recommended pulse rate R, when exercising, for a person who is x years of age is given by the equation R = 176−0.8x 。 What is the age, in years, of a person whose maximum recommended pulse rate when exercising is 1 40 ?If x > y and y > z, which of the following represents thegreatest number?
If the average (arithmetic mean) of 5 numbers j, j + 5, 2j - 1 , 4j - 2, and 5j - 1 is 8, what is the value of j ?If x > y and y > z, which of the following represents thegreatest number?
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