Page 60 - Algebra 1

Practice Distributed and Integrated
Add, subtract, multiply, or divide.
1.
(SB 3)
3.
(SB 3)
5.
(SB 2)
7.
(SB 2)
9.
( (S S B B 1 14 4) )
10.
(7)
11.
(8)
*12.
(9)
13.
( (S S B B 1 1 3 3) )
14.
(SB 12)
*15.
(9)
16.
(7)
17.
(7)
*18.
(9)
*19.
(9)
*20.
(9)
*21.
(9)
4_1 ÷ 2_1 3 3
1_2 +2_5 3 6
0.75 ÷ 0.2 1.25 · 0.2
2.
(SB 3)
4.
(SB 3)
6.
(SB 2)
8.
(SB 2)
42_3 - 21_3 84
2_2 ÷1_3 34
1.74 ÷ 0.3 12.2 × 3.2
Verify True or False: A square is a rhombus. Explain your choice.
Simplify 4[(6 - 4)3 - 5].
Convert 1.86 km2 to m2.
Evaluate the expression 14c + 28 - 12cd for the given values c = 4 and d = 5.
A straight angle measures
Find the prime factorization of 125.
.
+ l if t = 72 and l = 1. Multiple Choice Evaluate the expression 14 + _36 · (2 + 5).
Find the value of the expression 36
t-36 _
9
A 126 B 21 C 42 D 140
Simplify (3 + 12) + (⎢-4⎢- 2)3 + 1.
Flight A rocket is fired upward at an initial speed of 112 feet per second (ft/sec). It
travels at a speed of 112 - 32t ft/sec, where t is the flight time in seconds. a. What is the rocket’s speed after 1 second?
b. What is the rocket’s speed after 2 seconds?
Canoeing Rachelwantstorentacanoefor3hours.Usetheexpression
$6.50 + $1.75h, where h represents the number of hours, to calculate the cost of renting the canoe.
_2
Error Analysis Two students were asked to evaluate y when x is 5 and y is -5.
Which student is correct? Explain the error.
Data Analysis The variance of a set of data can be found with the expression _s , n
where s is the sum of the squared deviation and n is the total number of data items in the set. What is the variance for a set of data with 12 items and a sum of the squared deviations equal to 30?
-x
Student A
y -52 -25 _2 __
-x=-(5)= -5 =5
Student B
y =(-5)=25=-5 _2 _2 _
-x -(5) -5
Lesson 9 45