問題一覧
1
If (x+2)8 = 10 then
x = -3/4
2
X- 4)(x-6)
x² - 10x + 24
3
ax²+ bx + c,
x is a variable
4
4²x4⁴)³
4 ¹⁸
5
BCD 011100001001 to decimal is
709
6
Hexadecimal is
a base 16 numbering system
7
• 4x=2(x-2) x
-2
8
Log 50
1.699
9
1000 in binary is
8 in decimal
10
1681 square root is
41
11
Solve: 3x – 2 = 2x + 4
6
12
• (X-y)(x+y) simplify
x²- y²
13
• If the squares of the shorter sides of a triangle add up to the square of Hypotenuse
the triangle contains right-angle
14
• (a+b)² a=3 b=4
49
15
• (3²x3⁴)² is
3 ¹²
16
Simplify 4x- 3y + 3x - y -2x
5x - 4y
17
9^⅟₂
3
18
The process of reducing the number of significant digits in a number is
rounding
19
Log 10(100)
2
20
X=y + ac make c is the subject
c= (x-y)/a
21
• 13 octal in base 10 equal
11
22
Solve for x in 3(x+2)=30+2(x-4)
16
23
Factorize the following: 4x²-6x-28=0
(4x-14)(x+2)
24
36,66,126 lowest common factor is
6
25
2x=3(x+2) x
-6
26
27,6and 9 has common factor of
3
27
The trigonometrical ratio; adjacent divided by hypotenuse is.
Cosine
28
Y=6x+4 find the slope
6
29
Work the following sum4{2(5-1)-3}+8 =
22
30
Express 56.33 in standard form =
5.633 x10
31
Add 101+111 in binary =
1100
32
Binary coded decimal uses
binary numbering system
33
Calculate (3+2)(12-4)(9-2)=
280
34
• (Y+8)/2 =15 then y
22
35
Two gears are in mesh has twice number of teeth then: Two gears are in mesh has twice number of teeth then:
the fewer teeth rotate faster.
36
If x+3y = 4 and x-y = 2
then x= 2.5
37
738₁₆ in binary coded decimal is
11100111000
38
Calculate for x and y in equation x+y =2 and 2x-y=7
x=3 and y= -1
39
Octal is the base of
8
40
A set of infinitely many points that extend forever in both directions
line
41
Log₁₀(0.1)
-1
42
• 73 octal equal in hexa =
3B
43
Sin 30⁰
0.5
44
• A line that intersects a line segment at its midpoint and is perpendicular to that line segment is ,
A line segment bisector
45
10000 in binary equal
16 in decimal
46
If x²-9=0 then
x = 3 x= -3
47
• (X-2)(x+6)
x²+4x-12
48
18 base 10 to binary is
10010
49
Factorise 3 +21x
3(1+7x)
50
A in hexadecimal
10
51
simplify
• (x-y)--- x² - 2xy + y²
52
• (½)² =
1/4
53
Calculate for x and y in equation 3x+y=- 2 and 2x-3y=1
x=-1 and y=1