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Answer All The Questions

This document contains 13 multiple choice questions testing mathematical skills such as rounding numbers, expressing numbers in scientific and other number bases, evaluating algebraic expressions, graphing equations, and identifying regions satisfying multiple inequalities on a graph. The questions cover a range of foundational math topics and require setting up and solving calculations as well as interpreting graphs.

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Omar Danni Ahmad
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45 views3 pages

Answer All The Questions

This document contains 13 multiple choice questions testing mathematical skills such as rounding numbers, expressing numbers in scientific and other number bases, evaluating algebraic expressions, graphing equations, and identifying regions satisfying multiple inequalities on a graph. The questions cover a range of foundational math topics and require setting up and solving calculations as well as interpreting graphs.

Uploaded by

Omar Danni Ahmad
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOC, PDF, TXT or read online on Scribd
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ANSWER ALL THE QUESTIONS

1 Round off 0.0479 correct to two significant figures.

A 0.04 C 0.047

B 0.05 D 0.048

2 0.639 �400
Express in standard form.
3 �104

A 8.52 �10-3 C 8.52 �101

B 8.52 �10-2 D 8.52 �102

3 8.4 �106 - 4.7 �105 =

A 3.20 �106 C 1.31�103

B 7.93 �106 D 3.70 �101

4 4.21 x 10-7 - 2.6 x 10-8 =

A 1.61 x 10-8 C 3.95 x 10-8

B 1.61 x 10-7 D 3.95 x 10-7

5 What is the value of digit 3, in base ten in the number 53108 .

A 24 C 300

B 192 D 240

6 11001112 + 11112 =

A 1101102 C 100110102

B 11101102 D 11001102

7 Express 23415 as a number in base 8.

A 3468 C 532 8

B 436 8 D 623 8
8 Evaluate 110102 - 11012.

A 10112 C 100012

B 11012 D 100112

9 Express 4315 as a number in base eight

A 176 8 C 164 8

B 174 8 D 116 8

10 Given 34 5 < p 5 < 415 , state p 5 in base two

A 10010 2 C 10110 2

B 10100 2 D 10111 2

11. (a) Complete the following table for the equation y = -2 x 2 + 3 x + 8

X -3 -2 -1 0 1 2 3 4 5
Y - 19 -6 8 9 6 -1 - 27
( 2 marks )

b) For this part of the question, use the graph paper provided on next page. You may use a
flexible curve rule.
By using a scale of 2 cm to 1 unit on the x-axis and 2 cm to 5 units on the y-axis, draw
the graph of y = -2 x 2 + 3 x + 8 for - 3  x  5 .
(3 marks)
c) From your graph, find
(i) the value of y when x = - 2.4
(ii) the values of x that satisfy the equation 2 x 2 - 3x = 8 ( 3 marks)

d)
Draw a suitable straight line on your graph to find all the values of x which satisfy the
equation - 2 x 2 + 5 x = -16 for - 3  x  5. State these values of x .
( 4 marks)
Answers :
c) i ) y = ……………
ii) x = ……………

d) x = ……….. , ………….
12. On the graph provided, shade the region which satisfies the three inequalities
x - y  4 , x  4 and y  -6 .
[3 marks]
Answer :

y x- y=4

0 x
-2 2 4 6 8
-2

-4

-6

-8

13. On the graph in the answer space, shade the region which satisfies the three
inequalities 3 y �x + 12, y �-2 x + 4 and x  2 .
y [3 marks]
Answer :
3 y = x + 12

x
O
y = -2 x + 4

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