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1。第151页118题，图我打不上来。麻烦有做过的亲们帮忙解答下。一堆堆箭头好乱好乱。
2。which of the following fractions has a decimal equivalent that is a terminating decimal？
A。10/189
B。15/196
C. 16/225
D. 25/144
E. 39/128
这个题要一个一个算么?
3.On a map Town G is 10 centimeters due east Town H and 8 centimeters due south of Town J.Which of the following is closet to the straight-line distance,in centimeters,between Town H and Town J on the map？
A。6 B。13 C。18 D。20 E。24
4.if the number of square units in the area of circle C is twice the number of linear units in the circumference of C,What is the number of square units in the area?
A. 4 B.8 C.4π D.8π E.16π
5。第165页的212题是不是没有图呢?有会解的亲不?
6。A certain quantity is measured on two different scales ,the R-scale and the S-scale, that are related linearly.Measurements on the R-scale of 6 and 24 correspond to measurements on the S-scale of 30 and 60，respectively.What measurement on the R-scale corresponds to the measurement of 100 on the S-scale?
A.20 B.36 C.48 D.60 E.84
7.If n is a positive integer, what is the remainder when 3(指数8n+3)+2 is divided by 5?
A.0 B.1 C.2 D.3 E.4
这个题答案选的A,我觉得应该选E. |
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发表于 2010-8-9 13:17:35
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