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This module is from Fundamentals of Mathematics by Denny Burzynski and Wade Ellis, Jr. This module is a proficiency exam to the chapter "Exponents, Roots, Factorization of Whole Numbers." Each problem is accompanied with a reference link pointing back to the module that discusses the type of problem demonstrated in the question. The problems in this exam are accompanied by solutions.

Proficiency exam

( [link] ) In the number 8 5 , write the names used for the number 8 and the number 5.

base; exponent

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( [link] ) Write using exponents. 12 × 12 × 12 × 12 × 12 × 12 × 12 size 12{"12" times "12" times "12" times "12" times "12" times "12" times "12"} {}

12 7 size 12{"12" rSup { size 8{7} } } {}

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( [link] ) Expand 9 4 size 12{9 rSup { size 8{4} } } {} .

9 4 = 9 9 9 9 = 6, 561 size 12{9 rSup { size 8{4} } =9 cdot 9 cdot 9 cdot 9=6,"561"} {}

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For problems 4-15, determine the value of each expression.

( [link] ) 4 3 size 12{4 rSup { size 8{3} } } {}

64

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( [link] ) 1 5 size 12{1 rSup { size 8{5} } } {}

1

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( [link] ) 0 3 size 12{0 rSup { size 8{3} } } {}

0

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( [link] ) 2 6 size 12{2 rSup { size 8{6} } } {}

64

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( [link] ) 49 size 12{ sqrt {"49"} } {}

7

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( [link] ) 27 3 size 12{ nroot { size 8{3} } {"27"} } {}

3

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( [link] ) 1 8 size 12{ nroot { size 8{8} } {1} } {}

1

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( [link] ) 16 + 2 ( 8 6 ) size 12{"16"+2 cdot \( 8 - 6 \) } {}

20

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( [link] ) 5 3 100 + 8 2 20 ÷ 5 size 12{5 rSup { size 8{3} } - sqrt {"100"} +8 cdot 2 - "20" div 5} {}

127

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( [link] ) 3 8 2 2 3 2 5 2 2 6 3 4 5 2 29 size 12{3 cdot { {8 rSup { size 8{2} } - 2 cdot 3 rSup { size 8{2} } } over {5 rSup { size 8{2} } - 2} } cdot { {6 rSup { size 8{3} } - 4 cdot 5 rSup { size 8{2} } } over {"29"} } } {}

24

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( [link] ) 20 + 2 4 2 3 2 5 2 5 7 - 81 7 + 3 2 size 12{ { {"20"+2 rSup { size 8{4} } } over {2 rSup { size 8{3} } cdot 2 - 5 cdot 2} } cdot { {6 rSup { size 8{3} } - 4 cdot 5 rSup { size 8{2} } } over {"29"} } } {}

8

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( [link] ) 8 3 2 + 33 4 49 2 10 3 2 + 9 5 size 12{ left [ left (8 - 3 right ) rSup { size 8{2} } + left ("33" - 4 sqrt {"49"} right ) right ] - 2 left [ left ("10" - 3 rSup { size 8{2} } right )+9 right ]- 5} {}

5

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For problems 16-20, find the prime factorization of each whole number. If the number is prime, write "prime."

( [link] ) 18

3 2 2 size 12{3 rSup { size 8{2} } cdot 2} {}

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( [link] ) 68

2 2 17 size 12{2 rSup { size 8{2} } cdot "17"} {}

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( [link] ) 142

2 71 size 12{2 cdot "71"} {}

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( [link] ) 468

2 2 3 2 13 size 12{2 rSup { size 8{2} } cdot 3"" lSup { size 8{2} } cdot "13"} {}

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For problems 21 and 22, find the greatest common factor.

( [link] ) Write all the factors of 36.

1, 2, 3, 4, 6, 9, 12, 18, 36

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( [link] ) Write all the divisors of 18.

1, 2, 3, 6, 9, 18

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( [link] ) Does 7 divide into 5 2 6 3 7 4 8 size 12{5 rSup { size 8{2} } cdot 6 rSup { size 8{3} } cdot 7 rSup { size 8{4} } cdot 8} {} ? Explain.

Yes, because one of the (prime) factors of the number is 7.

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( [link] ) Is 3 a factor of 2 6 3 2 5 3 4 6 size 12{2 rSup { size 8{6} } cdot 3 rSup { size 8{2} } cdot 5 rSup { size 8{3} } cdot 4 rSup { size 8{6} } } {} ? Explain.

Yes, because it is one of the factors of the number.

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( [link] ) Does 13 divide into 11 3 12 4 15 2 size 12{"11" rSup { size 8{3} } cdot "12" rSup { size 8{4} } cdot "15" rSup { size 8{2} } } {} ? Explain.

No, because the prime 13 is not a factor any of the listed factors of the number.

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For problems 28 and 29, find the least common multiple.

Questions & Answers

A golfer on a fairway is 70 m away from the green, which sits below the level of the fairway by 20 m. If the golfer hits the ball at an angle of 40° with an initial speed of 20 m/s, how close to the green does she come?
Aislinn Reply
cm
tijani
what is titration
John Reply
what is physics
Siyaka Reply
A mouse of mass 200 g falls 100 m down a vertical mine shaft and lands at the bottom with a speed of 8.0 m/s. During its fall, how much work is done on the mouse by air resistance
Jude Reply
Can you compute that for me. Ty
Jude
what is the dimension formula of energy?
David Reply
what is viscosity?
David
what is inorganic
emma Reply
what is chemistry
Youesf Reply
what is inorganic
emma
Chemistry is a branch of science that deals with the study of matter,it composition,it structure and the changes it undergoes
Adjei
please, I'm a physics student and I need help in physics
Adjanou
chemistry could also be understood like the sexual attraction/repulsion of the male and female elements. the reaction varies depending on the energy differences of each given gender. + masculine -female.
Pedro
A ball is thrown straight up.it passes a 2.0m high window 7.50 m off the ground on it path up and takes 1.30 s to go past the window.what was the ball initial velocity
Krampah Reply
2. A sled plus passenger with total mass 50 kg is pulled 20 m across the snow (0.20) at constant velocity by a force directed 25° above the horizontal. Calculate (a) the work of the applied force, (b) the work of friction, and (c) the total work.
Sahid Reply
you have been hired as an espert witness in a court case involving an automobile accident. the accident involved car A of mass 1500kg which crashed into stationary car B of mass 1100kg. the driver of car A applied his brakes 15 m before he skidded and crashed into car B. after the collision, car A s
Samuel Reply
can someone explain to me, an ignorant high school student, why the trend of the graph doesn't follow the fact that the higher frequency a sound wave is, the more power it is, hence, making me think the phons output would follow this general trend?
Joseph Reply
Nevermind i just realied that the graph is the phons output for a person with normal hearing and not just the phons output of the sound waves power, I should read the entire thing next time
Joseph
Follow up question, does anyone know where I can find a graph that accuretly depicts the actual relative "power" output of sound over its frequency instead of just humans hearing
Joseph
"Generation of electrical energy from sound energy | IEEE Conference Publication | IEEE Xplore" ***ieeexplore.ieee.org/document/7150687?reload=true
Ryan
what's motion
Maurice Reply
what are the types of wave
Maurice
answer
Magreth
progressive wave
Magreth
hello friend how are you
Muhammad Reply
fine, how about you?
Mohammed
hi
Mujahid
A string is 3.00 m long with a mass of 5.00 g. The string is held taut with a tension of 500.00 N applied to the string. A pulse is sent down the string. How long does it take the pulse to travel the 3.00 m of the string?
yasuo Reply
Who can show me the full solution in this problem?
Reofrir Reply
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Source:  OpenStax, Fundamentals of mathematics. OpenStax CNX. Aug 18, 2010 Download for free at http://cnx.org/content/col10615/1.4
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