问答题In the figure below, what is the value of x?

题目
问答题
In the figure below, what is the value of x?
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1.______is not the tool name for quality controlling used in the figure below．A．Cause and Effect DiagramsB．Ishikawa DiagramsC．Fishbone DiagramsD．Scatter Diagram

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更多“问答题In the figure below, what is the value of x?”相关问题

  • 第1题：

    What should the configuration register value be after successfully completing the password recover procedure and returning the router to normal operation? ()

    A.0x2100

    B.0x2101

    C.0x2102

    D.0x2124

    E.0x2142


    参考答案：C

  • 第2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 = 3
    • B、 value = 4
    • C、 value = 5
    • D、 value = 6
    • E、 value = 7
    • F、 value = 8

    正确答案:F

  • 第3题：

    单选题
    In the correctly worked out addition example below, what is the greatest possible value of digit B?
    A

    9

    B

    8

    C

    6

    D

    5

    E

    4


    正确答案： B
    解析：
    Since 2 is carried over from adding the digits in the first column, in the second column A+B+B+1= 14, so A+2B= 13. Since B must be an integer, A cannot be 0. Hence, the greatest possible value of digit B occurs when A = 1 and B = 6.

  • 第4题：

    问答题
    What is the value of x-y?　　(1) (x-y)2=25　　(2) 4x=4 (y+3)

    正确答案： B
    解析：
    条件1不能确定x-y的值，由条件2可知，x-y=3，故本题选B项。

  • 第5题：

    单选题
    In the figure below, a small circle, with radius x, is inside a larger circle, with radius 6. What is the area, in terms of x, of the shaded region?
    A

    6π-2πx

    B

    6π-πx2

    C

    12π-2πx

    D

    36π-2πx

    E

    36π-πx2


    正确答案： E
    解析：
    根据图示可知，阴影部分的面积等于大圆的面积减去小圆的面积，即36π- x2π，因此选E。

  • 第6题：

    单选题
    What is the smallest integer value of x that satisfies the inequality 4-3x < 11?
    A

    -3

    B

    -2

    C

    -1

    D

    0

    E

    1


    正确答案： A
    解析：
    Solution 1: If 4-3x < 11, then -3x < 7, so x > -7/3. Since -7/3 is between -2 and -3, the smallest integer value of x that satisfies this inequality is -2. Solution 2: Plug each of the answer choices for x, starting with A., into 4-3x < 11 until you find one that makes the inequality a true statement. Choice A. gives 4-3(-3) < 11, 13 < 11 which is not a true statement. Choice B. gives 4-3(-2) < 11, 10 < 11 which is true, so there is no need to continue.

  • 第7题：

    问答题
    If x+y=36, what is the value of xy?　　(1) y-x=14　　(2) y=2x+3

    正确答案： D
    解析：
    分别将两个条件代入题目，可以计算出x=11，y=25，故本题应选D项。

  • 第8题：

    单选题
    If 2x-3y = 11 and 3x+15 = 0, what is the value of y?
    A

    -7

    B

    -5

    C

    1/3

    D

    3

    E

    10


    正确答案： B
    解析：
    First solve the equation that contains one variable. Since 3x+15 = 0, then 3x = -15, so x = -15/3 = -5. Substituting -5 for x in the other equation, 2x-3y = 11, gives 2(-5)-3y = 11 or -10-3y = 11. Adding 10 to both sides of the equation makes -3y = 21, so y = -21/3 = -7.

  • 第9题：

    单选题
    What is the least possible value of (x+1)2 if -2≤x≤3?
    A

    -2

    B

    3

    C

    -1

    D

    0

    E

    1


    正确答案： E
    解析：
    Since (x+1) 2 is the square of a number, the least possible square of a real number must be 0.

  • 第10题：

    问答题
    In the figure below, what is the value of x?

    正确答案： 54
    解析：
    根据图示可知，三角形的两边为圆的半径，是等腰三角形，所以有180=72+2x→x=54.

  • 第11题：

    单选题
    If 5/x+4/5=1, what is the value of x?
    A

    -25/4

    B

    -4

    C

    -5/4

    D

    -1/5

    E

    25


    正确答案： B
    解析：
    Multiply by 5x to clear fractions. 25+4x=5x, x=25

  • 第12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)?____

    正确答案： 42
    解析：
    90最大的奇因数为45，最小的奇因子为3，所以f(90)=45-3＝42。

  • 第13题：

    You are the administrator of the Testking network and you have forgotten the password to one of your routers. After completing the password recovery procedure the router returned to its normal operation. The config-register was set back to the initial default value.What is this value?（）

    A. 0x2112

    B. 0x2104

    C. 0x2102

    D. 0x2142

    E. 0x2100


    参考答案：C

  • 第14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 = 3
    • B、 Value = 4
    • C、 Value = 5
    • D、 Value = 6
    • E、 Value = 7
    • F、 Value = 8

    正确答案:F

  • 第15题：

    问答题
    If 4 percent of (p + q) is 8 and p is a positive integer, what is the greatest possible value of q ?

    正确答案： 199
    解析：
    这是一道数学题，(p + q)的4%是8，因此p+q=200，设p=1，1是最小的正整数，则可知q的最大值是199。

  • 第16题：

    单选题
    In the figure below, what is the value of a?
    A

    15°

    B

    25°

    C

    30°

    D

    45°

    E

    115°


    正确答案： E
    解析：
    已知上部倒三角形的两个内角分别为40°和25°，所以第三个角的度数180°-40°-25°=115°，所以与此角相对的下部三角形的角为115°，因此，a=180°-50°-115°=15°。

  • 第17题：

    多选题
    Concerning the figure below, if a =b, which of the following statements must be true? (Indicate all such statements.)
    A

    c=d

    B

    l and k are parallel

    C

    m and l are perpendicular


    正确答案： C,B
    解析：
    根据题目中的已知信息无法推断出各直线的关系，因此B、C均不正确；而由图示可知，c和d分别是a和b的补角，由于a=b，所以c=d，A项正确。

  • 第18题：

    填空题
    If the function f is defined by f(x)= (2x-4)/3 for what value of x does f(x) = 18?____

    正确答案： 29
    解析：
    因为f(x)= (2x-4)/ 3=18，2x - 4 = 54，x = 29。

  • 第19题：

    单选题
    If x-9 = 2y and x+3 = 5y, what is the value of x?
    A

    -2

    B

    4

    C

    11

    D

    15

    E

    17


    正确答案： A
    解析：
    Subtract corresponding sides of the two given equations: x+3=5y, x- 9= 2y →0+ 12=3y. 12/3 = y or y=4. Since y= 4 and x + 3 = 5y, then x + 3 = 5(4) = 20, so x=20-3=17.

  • 第20题：

    单选题
    If x is an integer and y=7x+11, what is the greatest value of x for which Y is less than 50?
    A

    7

    B

    6

    C

    5

    D

    4

    E

    3


    正确答案： A
    解析：
    解答这道题的快速方法是把选项中的数值依次代入方程式，计算y的数值，直到满足条件y＜50为止，即可得出答案。

  • 第21题：

    填空题
    If x + 9 is 50% greater than x, then what is the value of x?____

    正确答案： 18
    解析：
    根据题干得知x+9= 1.5x，减9，则9=0.5x。两边乘2，则18=x。

  • 第22题：

    填空题
    In the xy-plane, the graph of y = 2x2 + hx - 6 passes through the point (-3, -21), what is the value of h ?____

    正确答案： 11
    解析：
    因为(-3, -21)经过二次方程式，所以-21 = 2(-3)2 + h(-3) – 6，-21 = 18-3h-6= 12-3h，-33 =-3h，h = 11。

  • 第23题：

    问答题
    What is the value of the variable output at line 24？

    正确答案： 13423
    解析： 暂无解析

  • 第24题：

    单选题
    For what value of p is (x-2)(x+2) = x(x -p)?
    A

    -4

    B

    0

    C

    2/x

    D

    4/x

    E

    -x/4


    正确答案： B
    解析：
    Multiply on each side of the given equation, (x - 2)(x + 2) = x(x -p). The result is x2 - 4 = x2 – xp, so 4 = xp and p = 4/x.

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