Maths

Question 1

Dave says
The only quadrilateral with two lines of symmety is a rectangle
Is dave correct?

Answer 1

No

Question 2

Here is a sequence of numbers:
64 ,49 ,36 ,25 ,16
What is the name given to these numbers?

Answer 2

square numbers

Question 3

Here is a sequence of numbers:
1, 3, 6, 10, 15
What is the name given to these numbers?

Answer 3

triangle numbers

Question 4

Here is a sequence of numbers:
1, 1, 2, 3, 5, 8
What is the name given to this sequence?

Answer 4

fibonacci sequence

Question 5

If x=6, find the value of
a) x + 4
b)3x
c)x/2

Answer 5

a)10
b) 18
c) 3

Question 6

If x=5, find the value of
a)x squared
b) (x+3) squared

Answer 6

a)25
b) 64

Question 7

If a=7 b=2 find the value of
a)a-b
b)2a+3b
c)2ab
d)(a-b) squared

Answer 7

a) 5
b)20
c)28
d)25

Question 8

Here is an equation:
y=3x+5
a) When x=10, what is the value of y?
b)When x=-10, what is the value of y?

Answer 8

a) 35
b) -25

Question 9

n=24
What is 2n+10?

Answer 9

58

Question 10

If a=-3 what is the value of:
a)2a
b)a squared
c)3a squared

Answer 10

A)-6
B)9
C)81

Question 11

Factorise 8x+12

Answer 11

4(2x+3)

Question 12

Factorise 5x+10

Answer 12

5(x+2)

Question 13

All the factors of 10

Answer 13

1, 2, 5, 10

Question 14

All the factors of 15

Answer 14

1, 3, 5, 15

Question 15

Is 3 a factor of 12?

Answer 15

Yes because 3x4 is 12

Question 16

Expand 3(x+4)

Answer 16

3x+12

Question 17

Expand 2(3x+7)

Answer 17

6x+14

Question 18

Expand 5(2x-1)

Answer 18

10x-5

Question 19

Expand x(3x+2)

Answer 19

3x squared+2x

Question 20

Simplify 8x+5x

Answer 20

13x

Question 21

Round the following to the nearest 10
a)83
b)127
c)245

Answer 21

a)80
b)130
c)250

Question 22

What does the sentence:
“May I have a large container of coffee.
Thank You.”
Stand for?

Answer 22

The first 10 digits of PI

Question 23

A triangle has two equal sides.
a)What is the special name of this triangle?
b)One of the angles in this triangle measures 100*
What is the size of the other 2 sides?

Answer 23

a)isosceles
b)40*

Question 24

Work out the size of angle x if:
One angle is a right angle and the other equals 35*

Answer 24

x=55*

Question 25

Work out A if:
It is an isosceles triangle and one of the equal angles equals 65*

Answer 25

a=50*

Question 26

Work out B if:
It is an isosceles triangle and the unequal angle is 40*

Answer 26

B=70*