1) A MIR submersible is a type of submarine. As a MIR dives, its elevation changes by -100 feet each minute. From the surface, a MIR takes about 200 minutes to reach the lowest point to which it can dive. What is its elevation at that point? a) -2 b) -20 c) -100 d) -20000 e) -200000 f) -10000 2) what is 6 ÷ 2 (1 + 2) = a) 9 b) 6 c) 3 d) 33 e) 24 f) 0 3) In the figure, arc SBT is one quarter of a circule with center r and raius 6. If the length plus the width of rectangule ABCR is 8, then the perimeter of the shaded region is a) 8 + 3π b) 10 + 3π c) 14 + 3π d) 1 + 6π e) 12 + 6π f) 4 + 5π 4) If x,y, and z are positive integers and 3x=4y=7z, then the least possible value of x + y + z is a) 33 b) 40 c) 49 d) 61 e) 84 f) 1 5) what is 48 ÷ 2 (9 + 3) = ? a) 288 b) 188 c) 289 d) 100 e) 200 f) none of the above 6) 8 ÷ 2 ( 2 + 2) = a) 9 b) 4 c) 16 d) 3 e) 2 f) none of the above 7) conver 2+2+2+2+2 into exponent number a) 2 to the power of 4 b) 2 to the power of 6 c) 2 to the power of 5 d) 2 to the power of 2 e) 2 to the power of 7 f) 2 to the power of 1 8) 7 + 7 ÷ 7+ 7 x 7 - 7 = a) 50 b) 51 c) 40 d) 35 e) 67 f) 12 9) 44 ÷ 22 ÷ 2 ÷ 2 = ? a) 0.2 b) 23 c) 0.5 d) 53 e) 1 f) 2

Math Hardest Problems

打印
嵌入

排行榜

视觉风格

选项

切换模板

恢复自动保存：？