deck_16931256

Question 1

Simple interest

Answer 1

prt

Question 2

Compound interest

Answer 2

P(1+r/n)ⁿᵗ

Question 3

Area of circle

Answer 3

πr^2

Question 4

Circumference

Answer 4

2πr

Question 5

Surface area of sphere

Answer 5

4πr²

Question 6

Volume of sphere

Answer 6

4/3πr³

Question 7

Perimeter of a triangle

Answer 7

a+b+c

Question 8

Volume of cylinder

Answer 8

πr²h

Question 9

Surface area of sphere

Answer 9

4πr²

Question 10

Surface area of cylinder

Answer 10

2πrh+2πr²

Question 11

Quadratic formula

Answer 11

(-b±√b²-4ac)/2a

Question 12

Area of triangle with sin

Answer 12

(1/2)bc*sinA

Question 13

Exterior angle of a shape

Answer 13

360°/n

Question 14

Interior angle of a shape

Answer 14

((n-2)180°)/n

Question 15

Sine rule

Answer 15

SinA/a = SinB/b = SinC/c

Question 16

Surface area of cuboid

Answer 16

2(lw+lh+wh)

Question 17

Volume of cuboid

Answer 17

lbh

Question 18

Law of cosine

Answer 18

c²=a²+b²−2ab cos⁡C

Question 19

Speed

Answer 19

d/t

Question 20

arc length of sector

Answer 20

2πr(θ/360)

Question 21

arc length of a sector

Answer 21

(θ/360)2πr

Question 22

Pythagorean theorem

Answer 22

a^2+b^2=c^2

Question 23

+?

Answer 23

Top left: S
Top right : A
Bottom right: C
Bottom left: T

Question 24

θ? in ‘+’ A?

Answer 24

0

Question 25

θ? in ‘+’ S?

Answer 25

180-θ

Question 26

θ? in ‘+’ T?

Answer 26

180+θ

Question 27

θ? in ‘+’ C?

Answer 27

360-θ

Question 28

length of a line

Answer 28

√((x2-x1)²+(y2-y1)²)

Question 29

slope of a line

Answer 29

(y2-y1)/(x2-x1)

Question 30

Finding upper bound with division

Answer 30

UB/LB

Question 31

Finding upper bound with subtracion

Answer 31

UB-LB

Question 32

Finding lower bound with division

Answer 32

LB/UB

Question 33

Finding lower bound with subtraction

Answer 33

LB-UB

Question 34

Area of sector

Answer 34

(θ/360)πr²

Question 35

How many sides in a quadrilateral

Answer 35

4

Question 36

How many sides in a pentagon

Answer 36

5

Question 37

How many sides in a hexagon

Answer 37

6

Question 38

How many sides in a heptagon

Answer 38

7

Question 39

How many sides in a octagon

Answer 39

8

Question 40

How many sides in a nonagon

Answer 40

9

Question 41

How many sides in a decagon

Answer 41

10

Question 42

Formula for arc length with degrees

Answer 42

(θ/360)2πr

Question 43

Geometric sequence

Answer 43

a(r)ⁿ⁻¹

Question 44

Arithmetic sequence

Answer 44

a+(n-1)d

Question 45

Frequency density

Answer 45

frequency/class width

Question 46

Formula for class width

Answer 46

Max value of class - min value of class

Question 47

Midpoint of a line

Answer 47

{(x1+x2)/2}, {(y1+y2)/2}

Question 48

Surface area of cone

Answer 48

πrl

Question 49

Volume of cone

Answer 49

πr²h(1/3)

Question 50

Volume of pyramid

Answer 50

(lwh)/3

Question 51

When to use arithmetic formula?

Answer 51

Common difference (-3, -3, -3)

Question 52

When to use geometric formula?

Answer 52

Common ratio (×2, ×2, ×2)

Question 53

Find gradient of gradient

Answer 53

d²y/dx²

Question 54

Finding nature of stationary points

Answer 54

d²y/dx²

Question 55

Area of trapezium

Answer 55

(a+b/2)*h