Bnu1501 Assignment 1 Semester 2 2024

8/1/24, 11:41 AM Assessment 1: Attempt review




UNISA  2024  BNU1501-24-S2  Welcome Message  Assessment 1

QUIZ




Started on Thursday, 1 August 2024, 11:24 AM
State Finished
Completed on Thursday, 1 August 2024, 11:40 AM
Time taken 16 mins 57 secs
Grade 95.00 out of 100.00
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Question 1 WHATSAPP 064 516 7275
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Numbers like …, -3, -2, -1, 0, 1, 2, 3, … are called ________.


A. Whole numbers

B. Rational numbers

C. Integers

D. Natural numbers




Question 2
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Which of the following numbers is NOT a factor of 15?


A. 1

B. 5

C. 3

D. 4




Question 3

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Which one of the following numbers is a prime number?


A. 3

B. 4

C. 6

D. 8




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,8/1/24, 11:41 AM Assessment 1: Attempt review

Question 4

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Which one of the following numbers can be rounded off to 1,278.06?


A. 1,278.054

B. 1,278.066

C. 1,278.065

D. 1,278.055




Question 5
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The multiplicative identity of real numbers is ___.


A. 0

B. 1

C. 2

D. -1




Question 6
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Some pens are shared among three students Anne, Lucy and John. Anne gets 5
times as many pens as Lucy, and Lucy gets 2 pens less than John. Suppose John
gets x pens, how many pens does Anne get in terms of x?


A. 5(x - 2)

B. 5 + x - 2

C. 5x - 2

D. x-2



Question 7
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What is the de nition of a constant?


A. The letter used to represent a quantity

B. The number in front of a variable

C. The number with no variable

D. The little number or letter used to raise to a power



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,8/1/24, 11:41 AM Assessment 1: Attempt review

Question 8

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The multiplication of a number 4 by a variable y can be represented in more than
one way. Which of the following representations is INCORRECT?


A. 4∙y
B. 4y
C. 4y
D. 4(y)



Question 9
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In this expression -2a + 6b - 10, what are the coe cients?


A. -2, -6 and -10

B. -2 and 6

C. a and b
D. 2, 6 and 10




Question 10

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Subtracting the sum of 2x + x3 and −8 − 5x3 + 4x from x + 7 gives

A. −4x3 + 7x − 1
B. 4x3 + 5x − 15
C. 4x3 − 5x + 15
D. −4x3 + 7x + 1



Question 11
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Jackie has 2 electronic beepers. One beeps after every 5 seconds and the second
beeps after every 9 second. At what time both beepers will beep at same time?


A. 60

B. 40

C. 45

D. 55



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, 8/1/24, 11:41 AM Assessment 1: Attempt review

Question 12

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De ne the term “expression” in algebra.


A. A mathematical sentence

B. A number

C. A combination of variables, numbers, and operators

D. An equation with an equal sign




Question 13
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I have 15 mu ns, x of them are red-velvet avored, 5 of them are chocolate
avored and the rest are vanilla avored. An expression in terms of x for the
number of vanilla avored mu ns I have is


A. 15 − (x − 5)
B. 10 − (x − 5)
C. 10 − x

D. \(10-(-x-5)\)




Question 14
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Simplify the expression: \((4x + 3) - (5x + 9)\)


A. \(-x+12\)

B. \(9x+12\)

C. \(9x-6\)

D. \(-x-6\)




Question 15
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The expression \(24÷4+2-[(18-3×2)-(3×4-2)]\) can be written as


A. \(8-12+10\)

B. \(8-30-10\)

C. \(4-12-6\)

D. \( 4-30-10\)



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