BARRON-数学-1
做题总数 0 平均正确率 0% 预计耗时 0min 完成人数 0
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题号 题目内容 耗时/秒 平均正确率 操作
5cfbph
The area of a right triangle whose sides are 6, 8, and 10 is how many times the area of a right tria 1 91%

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521bqh
If the average (arithmetic mean) of x, y, and z is 20, which of the following is the value of z in t 1 95%

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dc6brh
A and B are independent events, and the probability that both events occur is [m]1/2[/ 1 49%

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7c9bsh
If m^2 = 17, then what is the value of (m+1)(m-1)? 1 96%

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692bth
If a, b, x, and y are positive integers, and [m]13^a×13^b=(13^x)^y=13^13[/m], what is the average (a 1 57%

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6f5bxh
The circumference of a circle is 12. Which of the following is closest to the area of the circle? 1 92%

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df3byh
If a line passes through the origin and the point (3, d), where 3 < d < 6, which of the following co 1 79%

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b00bzh
A rectangle is drawn in a standard xy-coordinate plane. If the sides of the rectangle are not parall 1 68%

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b0fc0h
If [m]((1/a)+a)^2=100[/m], what is the value of [m](1/(a^2))+a^2[/m]?[br/][blank/] 1 90%

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7cdc8h
For how many positive integers, x, is it true that [m]x^3≤3x[/m]? 1 80%

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a30c9h
The lengths of two sides of a triangle are 3 and 4. Which of the following could be the length of th 1 87%

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543cah
[m](a-b)/(7-3)=[/m] 1 96%

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d0dcbh
An antique dealer bought a chair for $100 and later sold it for $1,000. By what percent did the valu 1 90%

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e03cch
If x + y = 123 and x – y = 89, what is the value of [m]x^2–y^2[/m]?[br/][blank/] 1 90%

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686cdh
If the average (arithmetic mean) of 10, 20, 30, 40, and x is 60, what is the value of x? 1 97%

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d88chh
What is the area of a circle whose radius is the diagonal of a square whose area is 4? 1 78%

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