lulu odea

Question 1

y2 x y4: y to the power of 2 x y to the power of 4

Answer 1

y(to the power of 6): ADD INDICES

Question 2

(a3)2: a to the power of 3 to the power of 2

Answer 2

a to the power of 6: MULTIPLY INDICES

Question 3

(a)0: a to the power of 0

Answer 3

1

Question 4

a-1: a to the power of negative 1

Answer 4

1/a: PUT INTO FRACTION W/ NEGATIVE ON BOTTOM

Question 5

5a-4: 5 x a to the power of negative 4

Answer 5

5/a4: PUT POSITIVE ONTOP AND PUT NEGATIVE ON BOTTOM

Question 6

56.357 round to 3 significant figures

Answer 6

56.4: DON’T PUT ZERO’S BECAUSE IT’S A DECIMAL

Question 7

548307 round to 3 significant figures

Answer 7

548000: PUT ZERO’S BECAUSE IT’S NOT A DECIMAL

Question 8

764 000 000 000 scientific notation

Answer 8

7.64x10*11: ROUND TO 2 DECIMAL PLACES AND COUNT ZERO’S

Question 9

convert 5.8t to kg

Answer 9

5800kg: T-K=x1000

Question 10

convert 16km to cm

Answer 10

1600000cm: KG-M=x1000, M-CM=x100

Question 11

big units to small units

Answer 11

multiply

Question 12

small to big units

Answer 12

divide

Question 13

convert 23700mL to L

Answer 13

23.7: mL-L=DIVIDE BY 1000

Question 14

1500 mins to hours

Answer 14

25: DIVIDE BY 60

Question 15

limits of accuracy with a ruler with measurements of 1 cm

Answer 15

0.5cm: 1 DIVIDED BY 0.5

Question 16

area of a parallelogram

Answer 16

base x height (A=BH)

Question 17

area of a rhombus

Answer 17

1/2 x diagonal x diagonal (A=1/2XY)

Question 18

area of a trapeizum

Answer 18

h/2(x+y)

Question 19

circumference of a circle

Answer 19

2 pie r

Question 20

area of a circle

Answer 20

pie r squared

Question 21

area of a sector

Answer 21

x/360 pie r squared

Question 22

circumference of a sector

Answer 22

x/360 2 pie r + r + r

Question 23

surface area of a prism

Answer 23

area of all sides plus together

Question 24

surface area of a cylinder

Answer 24

2 pie r squared + 2 pie r height

Question 25

volume of a cube/triangular prism/cylinder

Answer 25

V=ah

Question 26

volume of a pyramid

Answer 26

V=1/3ah

Question 27

volume of a cone

Answer 27

V= 1/3 pie r squared h

Question 28

how do you find the length of an interval

Answer 28

Pythagoras theorem/distance formula

Question 29

distance formula

Answer 29

d= SQUARE ROOT, (x2-x1)squared+(y2=y1)squared

Question 30

find, using distance formula the coordinates of (-4,-2) and (2,6)

Answer 30

d=SQUARE ROOT, (-4-2)squared + (-2-6)squared

d=10

Question 31

find, using distance formula the coordinates of (-2, 5) and (2,-2)

Answer 31

d=SQUARE ROOT 65

Question 32

how to find the mid point of an interval

Answer 32

find average of x1 and x2 and y1 and y2 and right in coordinates

Question 33

the gradient of a line

Answer 33

rise over run