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Maths Trust Competition
Maths Trust Competition
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Answers
1
Would you use the sine rule, the cosine rule, SohCahToa or Pythagoras' Theorem?
SohCahToa
Pythagoras
Cosine
Sine
2
Expand the brackets:
4๐ ( 2๐ + 4 )
4๐ + 16๐
8๐2 + 16๐
8๐ + 16๐
8๐2 + 16
3
Do you love maths?
Of course
Definitely
Yea may be
Getting there
4
Fully Factorise: 10x + 35
5(2x + 7)
5(2x + 35)
10(x + 35)
2(5x + 17.5)
5
What are the possible first steps to solve this equation?
Divide both sides by 2
add 7 to both sides
Expand the bracket
xโ7 = 11
6
Would you use the sine rule, the cosine rule, SohCahToa or Pythagoras' Theorem first?
Sine
SohCahToa
Pythagoras
Cosine
7
In trigonometry, we learned that 180 degrees is equal to ________ radians.
3ฯ
2ฯ
ฯ
2
8
Which of the following does not rely (or relies least on) on trigonometry?
GPS (I.e sat navs)
Ultrasound scans
MP3 compression
Car Mechanic
9
Which expression/equation/inequality best represents this question?
12-8 < 10-5
12 > 10
12-8 = 10-5
12-8 > 10-5
10
Is the following item an expression, equation, inequality. 13 + 6
expression
equation
inequality
11
Fully Factorise 15y + 20
35y
5(3y + 4)
5(y + 4)
5(3y + 2)
12
Expand the brackets:ย (a
4
b
4
)
2
ab8
ab10
a6b6
a8b8
13
Is the following item an expression, equation, inequality. h= 27
expression
equation
inequality
14
Fully factorise: 18x
2
+ 12x
2x (9x + 6)
6x(3x + 2)
3x (6x+4)
x(18 + 12)
15
What is the first step to solve this equation?
divide both sides by 3
x=9
add 18 to both sides
3x=27
16
Expand
15x+5
8x+5
15x+1
8x+1
17
Expand the bracket: 5(m - 3)
5m - 15
5m - 3
m - 15
5m + 3
18
Expand the brackets: 2(a+b)
a2 + b2
2ab2
2a + b
2a + 2b
19
Expand the brackets: (g
7
ย รท m
2
)
2
g9รท m4
gm10
g14 รท m4
gm5
20
Expand the logarithm:ย
log6u * log6v
log6u + log6v
logu6 + logv6
log6u - log6v
21
Would you use the sine rule, the cosine rule, SohCahToa or Pythagoras' Theorem?
Pythagoras
Cosine
Sine
SohCahToa
22
Fully Factorise 15x + 3
3 (5x + 1)
5 (3x + 2)
5x (3 + 1)
3x (5x + 1)
23
Would you use the sine rule, the cosine rule, SohCahToa or Pythagoras' Theorem?
SohCahToa
Cosine
Pythagoras
Sine
24
(x - 3) (x + 3) = ? (expand brackets)
x2 - 3
x2 - 9
2x + 3x - 3x - 9
2x2
25
Expand the bracket: 2x(x - 2)
2x2 - 4x
2x2 - 2
2xx - 2
2x2 - 2x
26
Expand the brackets 2(a +4)
2a + 8
6a
24a
2a + 4
27
An
algebraic expression
is...ย
A math problem
A division problem
A math sentence with a variable
The answer to a numerical expression
28
The number without a variable in an expression/equation/inequality
Variable
Coefficient
Constant
Equal Sign
29
Would you use the sine rule, the cosine rule, SohCahToa or Pythagoras' Theorem?
Pythagoras
Cosine
SohCahToa
Sine
30
The word trigonometry means โ______________ _____________โ.
<p>Triangle Mathematics</p>
Triangle Measure
Geometry, Part 2
Metric Triangle
31
Factorise completely 6x
2
โ 9xy
3(2x + 3y)
3x(2x โ 3y)
3(2x โ 3y)
3x(2x + 3y)
32
What is the first step to solve this equation?
x+3=-8
multiply both sides by 4
subtract 3 from both sides
x=11
33
Would you use the sine rule, the cosine rule, SohCahToa or Pythagoras' Theorem?
Pythagoras
Sine
Cosine
SohCahToa
34
Is the following item an expression, equation, inequality. h โฅ 27
expression
equation
inequality
35
Which of these jobs do not use trigonometry frequently?
Meteorologist (Weather)
Artist
Architect
Civil Engineer
