Math 84
Answers to Quiz 3
Part I:
(1) A
(2) B
(3) D
(4) B
(5) E
(6) B
(7) A
(8) B
(9) A
(10) D
Part II: (1)
(a)
True or False?
3
3
0 =0
0
False, ( 0 is undened.)
(b) 5 = 0
a
(c) For whatever number a,
False.
a =1
It should be: For what nonzero number a,
n
MATH 84
Answers to Test 2 (I)
(1) Change the following mixed numbers to improper fractions:
7
(a) 4 15
= 67
15
5
=
(b) 11 7
82
7
(2) Change the following improper fractions to mixed numbers:
35
11
(a)
2
= 3 11
47 = 1 22
25
25
(b)
(3) List all the prime n
Math 84
Answers to Quiz 4
(1) Identify the coecient of each of the following terms:
(a) 7x2 y = 7
(b) abc = 1
(c) x = 1
(d)
x
2
=
1
2
(2) Apply the Distributive Law to remove the parentheses:
(a) 5(3x 9y + 2) = 15x 45y + 10
(b) 8(x2 6x + 3) = 8x2 + 48x 24
MATH 84
TEST 3 (I)
Write your number in the box above.
Note:
(1)
Show necessary work.
Name
Evaluating the following expressions, for x = 3 and y = 4.
(a) x + 3y
(b) x2 (y)2
(1a)
(1b)
(c) 2y 2 3y + 9
(d) (3 2x)(2y 3)
(1c)
(1d)
(2)
Simplifying:
(a)
3a + a 8
Math 84
Test 3 (II)
(Write your number in the box above.)
Name
Due: Wednesday, 4-29-2015
(1) What law is applied in 3x 8 = 8 + 3x
(1)
(2) What law is applied in 5(2a + 3b 5c) = 10a + 15b 25c
(2)
(3) If x = 1 3 , then x2 =
4
(3)
(4) If y = 1 , then, 2y 2 3
MATH 84
Answers to Test 2 (II)
(1) Write the whole number 75203094 in English words:
= Seventy-ve million, two hundred three thousand, ninety-four
(2) Write the whole number in standard form:
Thirty-six million ve hundred thousand forty-nine,
= 36, 500, 0
Math 84
Test 2 (II)
(Write your number in the box above.)
Due: Monday, 4-6-2015
Name
(1) Write the whole number 75203094 in English words:
(2) Write the whole number in standard form:
Thirty-six million ve hundred thousand forty-nine,
(2)
(3) 4 (14) | 24
Math 84
Answers of Quiz 2
Part I:
(1) B
(2) D
(3) B
(4) C
(5) C
(6) D
(7) A
(8) C
(9) A
(10) B
Part II:
(1) Comparing each pair of numbers (put =, <, or > in between them.)
(a) 16 > 26
(b) 2 > 200
(c) 25 < (25) (where (25) = 25)
(d) (6) < ( | 7 |) (where
Math 84
Quiz 1
(Write your number in the box above.)
Due:
Wednesday, 2-25-2015
Name
(1) Evaluate the following powers:
(a) 53 =
(b) 26 =
(d) 104 =
(c) 15 =
(e) 22 32 =
(f) 70 =
(2) Use power notation to express the following products, dont calculate.
(a)
Math 84
Quiz 2 (II)
(Write your number in the box above.)
Due:
Monday, 3-9-2015
Name
(1) Comparing each pair of numbers (put =, <, or > in between them.)
(a) 16
26
(b) 2
(c) 25
(25)
(d) (6)
( | 7 |)
(f) (5)
| (5) |
(e) 9
| 19 |
200
(2) Plot each of the
Math 84
Quiz 3 (II)
(Write your number in the box above.)
Due: Monday, 3-30-2015
Name
(1) True or False?
(a)
3
0
=0
(b)
a
a
(c) For whatever number a,
0
5
=0
=1
(2) Prime factorize the following numbers:
(a) 1680
(b) 1925
(2a)
(2b)
(3) Find the LCM of the
Math 84
Quiz 4
(Write your number in the box above.)
Due:
Monday, 4-27-2015
Name
(1) Identify the coecient of each of the following terms:
(a) 7x2 y
(b) abc
(c) x
(d)
x
2
(2) Apply the Distributive Law to remove the parentheses:
(a) 5(3x 9y + 2) =
(2a)
(b
Math 84
Quiz 5
(Write your number in the box above.)
Due:
Monday, 5-18-2015
Name
(1) What is the place value where digit 7 is:
(a) 0.5374
(b) 0.033957
(2) Convert 0.23 as a decimal fraction.
(2)
(3) Convert 0.0049 as a decimal fraction.
(3)
357
(4) Write
MATH 84
(1)
Answers to TEST 1
Write the number 35207084 in English words:
Thirty-ve million, two hundred seven thousand, eighty-four
(2)
Write the numbers from English to their standard form:
(a) Forty-seven million two hundred nine thousnad seventy-one:
MATH 84
TEST 1 (I)
Write your number in the box above.
Note:
Calculator is not allowed in the test.
Name
(1)
Write the number 35207084 in English words:
(2)
Write the numbers from English to their standard form:
(a) Forty-seven million two hundred nine th
MATH 84
Test 2 (I)
Write your number in the box above.
Name
(1) Change the following mixed numbers to improper fractions:
7
(a) 4 15
=
5
(b) 11 7
=
(1a)
(1b)
(2) Change the following improper fractions to mixed numbers:
(a)
35
11
=
(b)
47 =
25
(2a)
(2b)
MATH 20 Section 2676
QUIZ 1 2/29/16
1) Find the equation of the line perpendicular to
5, 1
2)
. Put your answer in standard form.
Solve for
p
xp a 3 p x
2x 3 y 4
that passes through the point
3)
A 50% salt solution is mixed with a 64% salt solution to pr