考完了, TOTAL 730 [转自我看机警]

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9.12 长夜依然漫漫 考完了, TOTAL 730 . JJ AWA AI : its impossible to achieve professional success without sacrificing important aspects of personal life. AA: advertising in DAILY GAZETTE boosts sales. MATH: 1. two kinds of machines x and y , x costs p dollars for each set , y q dollars . what is the total amount spent on 5 sets of x and 4 sets of y? 1) 4 sets of x and 3 sets of y cost 2180 dollars . 2) 10 sets of x and 3 sets of y cost 3250 dollars. 2. 5^k is a factor of the product of odd integers from 99 -199 , what is the greatest possible value of k ? 3. a bouquet consists of red and white carnations , randomly select two flowers , what is possibility of having one of each ? 1) the number of red carnations is equal to that of the white carnations 2) there are 6 red carnations in the bouquet. 4. when positive integer a is divided by another positive integer b , the quotient is 5 and remainder is 3 , which of the following could be the value of a ? 1 ) 13 2) 38 3) 57 5. line k and l intersect at point ( 16/5, 12/5 ) , what is the slope of line l 1) one of the angles formed at the intersection is 90 2) line k passes through the origin 6. is 1000 a factor of k ? 1) 2000 is a factor of 4k 2) 8 is a factor of k 7. if lm+4l=2, what is the value of m? 1) m<0 2) m^2 +8m + 12=0 8. is the total measure of interior angles in polygon p greater than 500 ? 1) the measure of one angle is 100 2) the polygon has more than 5 sides. 9. if x@y =xy -x+y , a@b=o, what is a in terms of b ? 10. f(y)=ky, k is a constant , is f(-5)>0? 1) f(-2) <0 2) f(-3)f(-4)>0 11 do jack and nancy together own a total of 10 pencils ? 1) jack owns more than twice the pencils owned by nancy 2) nancy owns less than 5 pencils . 12. are m and k consecutive numbers ? 1) m+k=3 2) m-k =1 13.x,y,z are three sides of a triangle , and x 2^(1/2) B (1/2)*3^(1/2)