Which number is irrational
a. 23
b. -?7
c. ?121
d. -5
b. -?7
Which graph corresponds to the set of real numbers
{-4.25, -?, , 2.75}?
<__�|____�|______________________�|__�|____>
-4 -3 -2 -1 0 1 2 3 2 3
The following formula F= 9/5C + 32 is used to convert a Celsius ( C) temp to its corresponding Fahrenheit ( F).
What is the temp in F if temp is -10 Celsius?
a. 14.0 F
b. 26.4 F
c. 50.0 F
d. 37.6 F
14.0 Fahrenheit (F)
9/5(-10) + 32
Driver A travels west from Boston at a constant speed of 60 mph. Driver B leaves three hours later from Boston and follows Driver A at a constant speed of 72 mph.
How many hours take Driver B to catch Driver A?
a. 12 hours
b. 15 hours
c. 18 hours
d 20 hou
72 x 15 hours = 1080 miles
60 x 18 hours = 1080 miles
Answer 15 hours
What is the solution to x + 4 < 4 x - 5 expressed in interval notation?
a. { - ? ,3}
b. {{4\3},? }
c.{3,? }
d. {9,? }
( {3,? } )
Which graph represents the following equation?
y = \(\frac{1}{2}x - 4\)
Graph 4
What is the slope of the line that passes through the points (0,-8) and (1/2, 4)
a. -24
b. -8
c. 8
d. 24
Answer 24
What is the equation of the line that passes through the points (-3,7) and (5,-1)?
a. y = ?x + 10
b. y = ?x + 4
c. y = ?x + 3
d. y = ?x + 7
y = ?x + 4
When the price for admission to a sporting event was $100 per ticket, 50,000 people attended the event. When the price increased to $108, the attendance decreased to 45,000 people.
Which linear equation represents the attendance ( d) in terms of the admis
d = -625 p + 112,500
A stockbroker's monthly salary is $1,848 plus a sales commission of 5.2% of the broker's total sales for the month.
Which equation represents the stockbroker's total monthly income (I) based on monthly sales of x dollars?
a. I = 0.52( x + 1,848)
b. I = 0.
I = 0.052 x + 1,848
The following four sets of points are relations:
A = {(1,1), (5,2), (8,2), (9,3)}
B = {(1,1), (5,2), (5,3), (6,3)}
C = {(1,1), (1,2), (5,2), (6,3)}
D = {(2,1), (8,2), (8,3), (9,4)}
Which relation is a function?
Set A is a function
A store is creating a 30 lb mixture of chocolates and nuts. Chocolates cost $5.00 per pound, and nuts cost $2.50 per pound. The store wants to make a mixture that costs, on average, $3.00 per pound.
How many pounds of nuts are needed for this mixture?
a.
24 lb needed
A local credit union offers a certificate of deposit (CD) that returns 2% interest and a money market fund that returns 3% interest. Over the next year, a credit union customer wants to earn $263.50 in interest on an investment of $10,000 between a CD and
$3,650
What are Real Numbers (?)
(include Rational and Irrational)
include Rational and Irrational)
? 4/5, ?, 0, 1/10 , ?3, 6
What are the irrational numbers (nums)?
?, ?5, ??2
What are the rational numbers (?) (nums)?
1/4, 2/3 , ?15/8, 0, 6
What are Non-integer Rational Numbers (nums)
14/15, 1/2, 6.3
What are the integers (?) (nums)?
?3, 0, 15
Negative Integers?
?10, ?5, ?206
Whole Numbers (??)?
0, 1, 2, 3
Natural Numbers (?)?
1, 15, 403