問題一覧
1
The process of reducing the number of significant digits in a number is
rounding
2
0.8 as fraction =
8/10
3
(a+b)2 a=3 b=4 ---
49
4
Area of rhombus can be calculated by
1⁄2 d1 x d2
5
Calculate (3+2)(12-4)(9-2)=
280
6
18 base 10 to binary is
10010
7
9/30 as a decimal =
0.3
8
20,28,17,34,40,11,34,26,find median =
27 (11,17,20,26,28,34,34,40)
9
Log10(0.1) =
-1
10
Express 56.33 in standard form =
5.633 x10
11
If x+3y = 4 and x-y = 2 then
x=2.5
12
(Y+8)/2 =15 then y=
22
13
Convert 20 grams to pounds = 20/450
0.0444
14
73 octal equal in hexa =
3B
15
(X- 4)(x-6) =
x*2 - 10x + 24
16
(X-y)(x+y) simplify --
x^2-y^2
17
4x=2(x-2) x =
-2
18
Pounds to kilogram
multiply by 0.4536
19
13 octal in base 10 equal
11
20
The Supplement of 650 is
115
21
(4*2x4*4)*3=
4*18
22
0.0000222=
2.22*10^-5
23
Log 10 (100) =
2
24
BCD 011100001001 to decimal is
709
25
36,66,126 lowest common factor is
6
26
If we have 30% out of 600 cars are unserviceable how many cars can be used 30/100 x 600 =180 cares unserviceable 600 – 180 =
420 cares can be used
27
A cute angle has less than
90
28
The equation y = x^2 +3x -10 the graph defines
a parabola
29
9/16 + 3/8 = 9+6/16 =
15/16
30
27,6and 9 has common factor of
3
31
Cube root of 2*3=
2
32
Sin 30=
0.5
33
find 1/2+1/8×1/2÷1/4 =
3⁄4
34
(1⁄2)^2 =
1/4
35
(X-2)(x+6)=
x^2+4x-12
36
ax2+ bx + c,
x is a variable
37
Factorize the following: 4x2-6x-28=0
(4x-14)(x+2)
38
Solve: 3x – 2 = 2x + 4 =
6
39
Work the following sum4{2(5-1)-3}+8 =
28
40
10000 in binary equal
16 in decimal
41
2.22*10^ 5=
222000
42
Hexadecimal is
a base 16 numbering system
43
Simplify 4x- 3y + 3x - y -2x ---
5x - 4y
44
30 as percentage of 50=
60%
45
1/5 + 1/6 + 3/10 =
2/3
46
(x-y)*2 simplify
x*2 - 2xy + y*2
47
Convert 20 pounds to grams =
9070
48
The internal angle of a hexagon is
120
49
Factorise 3 +21x -----
3(1+7x)
50
50 square feet into square meter =
4.645
51
Input gear One complete revolution of 120 teeth output rotate gear without put 20 revolution, the output rotates =
6rev
52
9/8 + 3/16 =
15/16
53
1000 in binary is
8 in decimal
54
(3*2x3*4)^2 is =
3*12
55
1681 square root is
41
56
X=y + ac make c is the subject ---
c= (x-y)/a
57
Octal is the base of
8
58
for the straight line having the equation 4y=4x+8 the y intercept is :
2
59
In equilateral triangle
all sides are the same length
60
Binary coded decimal uses
binary numbering system
61
Y=6x+4 find the slope =
6
62
A in hexadecimal =
10
63
73816 in binary coded decimal is
11100111000
64
What is the gradient of the line having an equation 5x -3y=2?
5/3
65
In a scalene triangle
no 2 sides are the same length
66
Two gears are in mesh has twice number of teeth then:
the fewer teeth rotate faster.
67
Log 50 =
1.699
68
find the gradient of a graph has two point (3,9)(9,1) =
-4/3
69
10 cm diameter cylinder with 10 cm height total surface area =
150 pi cm2
70
Calculate for x and y in equation 3x+y=- 2 and 2x-3y=1
x=-1 and y=1
71
2x=3(x+2) x=
-6
72
9^1⁄2 =
3
73
A straight line having the equation Y = -2x + 10. At what point cut x-axis?
5
74
Add 101+111 in binary =
1100
75
9/4+ 5/12+ 5 1/8 =
19/24
76
Calculate for x and y in equation x+y =2 and 2x-y=7
x=3 and y= -1
77
3⁄4 x 82=
61.5
78
has one pairs of parallel sides
Trapezium
79
If x*2-9=0 then x =
3 x= -3
80
Solve for x in 3(x+2)=30+2(x-4) =
16
81
If (x+2)8 = 10 then x =
-3/4
82
Three angle triangle sum =
180
83
2 6/7 to improper fraction =
20/7