Free Printable 1/21

1.

$-3\left[8-3\left(5+\sqrt{9}\right)-\left(7-9\right)\right]$

a)

-42

b)

60

c)

42

2.

$0.0000314$ can be written as

a)

$3.14\ \times\ 10^5$

b)

$3.14\ \times10^{-5}$

c)

$3.14\ \times10^{-4}$

3.

$x^2-x-6=0$

a)

$\left(x-2\right)\left(x-3\right)$

b)

$\left(x-2\right)\left(x+3\right)$

c)

$\left(x+2\right)\left(x-3\right)$

4.

if x in a equation equals Ly +7cb, define the formula for finding the subject y

a)

$\frac{\left(x-7cb\right)}{L}$

b)

$x-\frac{7xb}{L}$

c)

$x-\frac{L}{7ab}$

5.

an acute angle is

a)

less than 90 degrees

b)

more than 90 degrees, but less than 180 degrees

c)

more than 180 degrees

6.

what is the perimeter of a square with an area of 64 square centimeters

a)

32 cm

b)

16 cm

c)

24 cm

7.

if (c+8)/2 =15, then c equals

a)

11.5

b)

22

c)

60

8.

a pinion gear with 16 teeth is driving a spur gear with 48 teeth at 120 RPM. Find the speed of the pinion gear

a)

40 RPM

b)

360 RPM

c)

144RPM

9.

an aeroplane flies 1000miles and uses 80 gallons of fuel. how much fuel will it use on a 2500 mile flight

a)

200 gallons

b)

250 gallons

c)

240 gallons

10.

$\left(5^2\times5^3\right)^2$

a)

$5^{12}$

b)

$5^{10}$

c)

$5^7$

11.

100000 in binary is what

a)

16

b)

32

c)

64

12.

101110 in binary is

a)

46 (2)

b)

46 (8)

c)

46 (10)

d)

i didnt know how to lower the number to represent binary or octal or decimal lol so the number in brackets represents that

13.

$2.5\ \times\ 10^5$

a)

250,000

b)

25,000

c)

0.000025

14.

what is the equations of a straight line that passes through the two points (0,0) and (3,2)

a)

y = 3x + 2

b)

y = 2x + 3

c)

$y=\frac{2x}{3}$

15.

when the Cartesian co-ordinates (4,7) are converted to polar form, the value of 'r' is approximately

a)

11

b)

71

c)

5

16.

$14^{3\ }$ can be expressed as:

a)

14 x 3

b)

14 x 14 x 14

c)

14 + 14 + 14

17.

17 degrees 49 minutes and 10 seconds added to 22 degrees 22 minutes and 59 seconds =

a)

40 degrees 11 minutes and 69 seconds

b)

39 degrees 11 minutes and 9 seconds

c)

40 degrees 12 minutes and 9 seconds

18.

an equilateral triangle has

a)

two equal sides

b)

no equal sides

c)

three equal sides

19.

an input gear has 20 teeth and the output gear has 120 teeth. if the input gear rotates 360 degrees, the output gear will rotate:

a)

90 degrees

b)

45 degrees

c)

60 degrees

20.

how many degrees in $\pi\$ radians

a)

90

b)

180

c)

52.7

21.

how many radians are there in a semi - circle?

a)

3.5

b)

$2\pi$

c)

$\pi$

22.

log 100 + 2 =

a)

4

b)

log 200

c)

log 2

23.

log 100 + cos60

a)

2.5

b)

0.25

c)

25

24.

$\log\ \frac{x}{y}\ is\ the\ same\ as:$

a)

$\frac{\log x}{\log\ y}$

b)

$\log\ \left(x-y\right)$

c)

log x - log y

25.

make c the subject of the formula is y = mx + c

a)

y + mx

b)

y - mx

c)

mx - y

26.

a dial gauge is calibated to an accuracy of 0.001 inch when the using the dial gauge, you should

a)

round off the answer to calibrated value

b)

read the true value to 4 decimal places

c)

read five significant figures

27.

a pipe of length 3m and diameter 1m is ground to a length of 2.75m. what is the new surface area of the pipe

a)

$2.75\pi\ m^2$

b)

$0.689\pi m^2$

c)

$0.687\pi m^2$

28.

how many radians are there in 360 degrees

a)

$2\pi$

b)

$4\pi$

c)

$6\pi$

29.

3y = -21 + 24yy =

a)

-1

b)

1

c)

-21

30.

$10111_2\ -1001_2$

a)

$1100_2$

b)

$1100_4$

c)

$1010_2$

1/21

Total questions: 30

Worksheet time: 3600secs

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