The path of a projectile is given by y = -0.5x² + 10x. What is the coefficient of x²? A. 0.5 B. -0.5 C. 10 D. None of the above 相关知识点: 试题来源: 解析 B。解析:二次函数表达式中 x²的系数就是-0.5。选项 A 错误。选项 C 是 x 的系数。
百度试题 结果1 题目What is the coefficient of x1 in the complete expansion of (x+1)20( ).A.400B.20C.19D.1 相关知识点: 试题来源: 解析 B 反馈 收藏
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百度试题 题目What is the coefficient of variation for a distribution with a mean of 10 and a variance of 4? A. 20%. B. 40%. C. 25%. 相关知识点: 试题来源: 解析 A 略 反馈 收藏
What is the coefficient of x^147 in the product of [1+3x+(x^2)+4(x ^3)+...] x [1-3x+(x^2)-4(x^3)...] Dear studentPlease write the Question in a standard form
答案解析: Coefficient of variation, CV = standard deviation / mean. The standard deviation is the square root of the variance, or 4½ = 2. So, CV = 2 / 10 = 20%. 统计:共计66人答过,平均正确率62.12% 问题:进入高顿部落发帖帮助...
百度试题 结果1 题目What is the coefficient of the a^5 term in the expansion of (a+b)^(10)? ( ) A. 252 B. 126 C. 210 D. 462 E. 120 相关知识点: 试题来源: 解析 A 反馈 收藏
The coefficient of performance is a change in the ratio in the heat released at an output compared to the work that must be...
What is the coefficient for H+(aq) when the equation is balanced with whole number coefficients? ( ) __Mn2+(aq) + __BiO3–(aq) + __H +(aq) = __Bi3+(aq) + __MnO4–(aq) + __H2O(l) A. 3 B. 4 C. 7 D. 14 相关知识点: ...
Question: Consider the seriesf(x)=∑n=1∞64nx3nn(i) What is the radius of convergence of this series?Write the letter i if the radius is infinite.(ii) Find the series expansion, centered at x=0, for the derivative...