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Transcript
Chapter 1 and 2 REVIEW
Simplify:
5y – (2y – 8)
3y + 8
Is 4 a solution of 6d – 7 > 17?
Explain your answer using 2 complete
sentences!
No, 4 is not a solution. When I
substituted 4 in for d, the expression
simplified into 17 > 17, which is not
true. 17 is equal to 17, not greater
than.
Evaluate the expression:
19 – 4x + x3 when x = 3.
34
Write a variable expression
for 6 times the sum of
k and 3.
6(k + 3)
Name all the number sets to which the
numbers belong. (whole number, an
integer, or a rational number.)
8 1/6
0
-99
7.28475
8 1/6  Rational
0  Rational, Integer, Whole #
-99  Rational, Integer
7.28475…  Irrational
Write a variable
expression for “16 less
than a number, m,
cubed.
3
m
- 16
Find the change in
temperature from 10*F
to -16*F.
26*F
Simplify:
7(r + 1) + 3(r + 1)
10r + 10
Find the Product:
(9)(-2)(3)(-1)
54
What is the
multiplicative inverse of
-19?
-
1/
19
Simplify the expression:
20h – 4
4
5h - 1
Find the quotient:
8 ÷ (-
2/ )
5
-20
Find the quotient:
8 ÷ (- 4
2/ )
7
-
28/
15
Tell whether the number is
rational or irrational. Give a
reason for your answer.
√7
√25
√7  Irrational. 7 is not
a perfect square so the
decimal will continue
forever.
√25  5. Rational. 25 is
a perfect square.
Identify the terms, like terms,
coefficients, and constant terms.
THEN, simplify the expression.
8c – 8 + 5 – 9c +
2
2c
8c – 8 + 5 – 9c + 2c2
• Terms: 8c, -8, 5, -9c, 2c2
• Like terms: 8c, -9c AND -8, 5
• Coefficients: 8, 2, and -9
• Constant terms: -8 and 5
• Simplified Answer:
2
2c
-1c – 3
Simplify:
-
3/
8
÷
3/
10
-
5/
4
Simplify:
(5)(-5)(2)
-50
Estimate
29
29 Is between
25 and 36
Since 25 is closer to 29,
The

29
is ≈ 5.

Simplify:
-8(p – 3)
-8p + 24
Simplify:
7
5x
+
7
14x
7
19x