网友您好, 请在下方输入框内输入要搜索的题目:
题目内容
(请给出正确答案)
单选题
If 3x+y = c and x+y = b, what is the value of x in terms of c and b?
A
(c-b)/3
B
(c-b)/2
C
(b -c)/3
D
(b-c)/2
E
(c-b)/4
参考答案
参考解析
解析:
Eliminate y by subtracting corresponding sides of the given equations: 3x+y=c, x+y=b. Therefore 2x+0=c-b, so x= (c-b)/2
Eliminate y by subtracting corresponding sides of the given equations: 3x+y=c, x+y=b. Therefore 2x+0=c-b, so x= (c-b)/2
更多 “单选题If 3x+y = c and x+y = b, what is the value of x in terms of c and b?A (c-b)/3B (c-b)/2C (b -c)/3D (b-c)/2E (c-b)/4” 相关考题
考题
(15)已知代数式eXSin(30°)2x/(x+y)Lnx,则正确的Visual Basin表达式为 A.E*Sin(30*3.14/180)*2*X/X+Y*Log(X) B.Exp(X)*Sin(30)*2*X/(X+Y)*Ln(X) C.Exp(X)*Sin(30*3.14/180)*2*X/(X+Y)*Log(X) D.Exp(X)*Sin(30*3.14/180)*2*X/(X+Y)*Ln(X)
考题
表示条件“X+Y大于10小于100,且X-Y要小于0”的逻辑表达式为()。A.1010 And
表示条件“X+Y大于10 小于100,且X-Y要小于0”的逻辑表达式为( )。A.10<X+Y<100 And X-Y<0B.X+Y>10 And X+Y<100 And X-Y<0C.X+Y>10 And X+Y<100 Or X-Y<OD.X+Y>10 Or X+Y<100 Or X-Y<0
考题
public class SwitchTest { public static void main(String[] args) { System.out.println(“value = “ + switchIt(4)); } public static int switchIt(int x) { int j = 1; switch (x) { case 1: j++; case 2: j++; case 3: j++; case 4: j++; case 5: j++; default: j++; } return j + x; } } What is the result?() A、 value = 3B、 value = 4C、 value = 5D、 value = 6E、 value = 7F、 value = 8
考题
以下if语句语法正确的是()A、if(x0)x=0;elsex=1B、if(x0){x=x+y;elsex=0;}C、if(x0){x=x+y;}elsex=1;D、if(x0){x=x+y;}}else{x=0;
考题
代数式exSin(300)2x/(x+y)lnx对应的VB表达式是()A、E^X*Sin(30*3.14/180)*2*x/x+y*log(x)B、Exp(x)*Sin(30)*2*x/(x+y)*ln(x)C、Exp(X)*Sin(30*3.14/180)*2*x/(x+y)*log(x)D、Exp(X)*Sin(30*3.14/180)*2*x/(x+y)*ln(x)
考题
单选题数学式(3/5)ex+y的FORTRAN表达式是()A
3*EXP(X+Y)/5B
3*E* *(X+Y)/5.0C
(3/5)*EXP(X+Y)D
(3.0/5.0)EXP(X+Y)
考题
单选题If a/b = 6/7 and a/c = 2/5, what is the value of 3b + c in terms of a?A
12aB
9aC
8aD
6aE
4a
考题
单选题代数式exSin(300)2x/(x+y)lnx对应的VB表达式是()A
E^X*Sin(30*3.14/180)*2*x/x+y*log(x)B
Exp(x)*Sin(30)*2*x/(x+y)*ln(x)C
Exp(X)*Sin(30*3.14/180)*2*x/(x+y)*log(x)D
Exp(X)*Sin(30*3.14/180)*2*x/(x+y)*ln(x)
考题
单选题If 3x+y = c and x+y = b, what is the value of x in terms of c and b?A
(c-b)/3B
(c-b)/2C
(b -c)/3D
(b-c)/2E
(c-b)/4
考题
单选题What is the smallest integer value of x that satisfies the inequality 4-3x 11?A
-3B
-2C
-1D
0E
1
考题
单选题public class SwitchTest { public static void main (String args) { System.out.PrintIn(“value =” +switchIt(4)); } public static int switchIt(int x) { int j = 1; switch (x) { case 1: j++; case 2: j++; case 3: j++; case 4: j++; case 5: j++; default:j++; } return j + x; } } What is the output from line 3? ()A
Value = 3B
Value = 4C
Value = 5D
Value = 6E
Value = 7F
Value = 8
考题
填空题Let f(x) be defined as the absolute value of the difference between the smallest and largest odd factors of x greater than 1. For example, f(42)=︱3-21︱=18. What is the value of f(90)?____
热门标签
最新试卷