【题目】Problem 15: What is the sum of all values of z forwichf(5z)=51 andfsafunon dfined byf()=x^2+x+1 It is().(A) -1/(13)(B) -1/5(C)-5(D) 5/7(E)5 相关知识点: 试题来源: 解析 【解析】Problem 15:Solution:(B).Method 1:Let 25z=xf(x/5)=x^2+x+1⇒f((25...
19.The sum of all values of x that satisfy the equation ( (x^2-5x+5)^(x^2+4x-60)=1is
x的所有取 19. The sum of all values of x that satisfy the equation 值的和是多少? (A)-4 (B)3 (C)1 (A)-4 (B)3 (C)1 (D)5 (E)6 (D)5 (E)6 相关知识点: 试题来源: 解析 优质解答反馈 收藏
题目 Problem 15:What is the sum of all values of zfor which f(5z)=51 and f is a fumction defined by f( 5)= x'+x+1.It is( ) . (A)-5 - 1/(13) ()- - 1/5 (C)-5 5/7 (E)5 相关知识点: 试题来源: 解析
解，2m²-16m+8=0 m²-8m+4=0 (m-4)²=12 m1=4+2√3，m2=4-2√3 m1+m2=8 所以选择D。
Let f be a function for which f(x3)=x2 x 1. Find the sum of all values of z for which f(3z)=7.( ) A. −13 B. −19 C. 0 D. 59 E. 53 相关知识点: 试题来源: 解析 B Let y=x3; then f(y)=(3y)2+3y+1=9y2+3y+1. Thus f(3z)−7=81z2+9z−6=3...
The data set has a total of 20 values. The sum of all the values is 100. What is the average? A. 2 B. 4 C. 5 D. 10 相关知识点: 试题来源: 解析 C。平均是总和除以数量,这里总和是 100,数量是 20,100 除以 20 等于 5,所以选 C。
inttotal_sum=boost::accumulate(map|boost::adaptors::map_values,0); std::cout<<total_sum<<std::endl;// 15 return0; } Download Code That’s all about finding the sum of all values in the map in C++. Also See: Find average of all values present in a vector in C++ ...
What is the sum of all values in a data set divided by the total number of values? Averages Way back in elementary school, we learned that to find the average value of a set of values, we needed to add them all up and divide that sum by the total number o...
百度试题 结果1 题目For each positive integer , let . What is the sum of all values of that are prime numbers?( ) A: B: C: D: E: 相关知识点: 试题来源: 解析 E N/A. 反馈 收藏