Percentage
A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.
Algebraic Expressions
In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.
Numbers
Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.
Subtraction
Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.
Addition
Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.
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(pages 404-409)
measures of the interior angles of each convex polygon.
1. 25-gon
4. 17-gon
2. 30-gon
5. Sa-gon
3. 22-gon
6. bgon
The measure of an interior angle of a regular polygon is given. Find the number
of sides in each polygon.
7. 156
8. 168
9. 162
Find the measures of an interior angle and an exterior angle given the number of
sides of a regular polygon. Round to the nearest tenth.
12. 42
10. 15
11. 13
Lesson 8-2
(pages 411-416)
Complete each statement about ORSTU. Justify your answer.
1. LSRU ?
3. Rul?
5. ARST
2. LUTS is supplementary to ?
4. Ru?
6. SV ?
?
ALGEBRA Use DABCD to find each measure or value.
34+7
7. MLBAE -?
MLBEC - ?
11. MLABE - ?
13. a-?
8. MLBCE - ?
914+e
10. MLCED - ?
12. MLEBC - ?
14. b-?
16. d-?
+2S+94
394
188/E
28
40
15. c
Lesson 8-3
(pages 417-423)
Determine whether each quadrilateral is a parallelogram. Justify your
answer.
1.
3.
ALGEBRA Find x and y so that each quadrilateral is a parallelogram.
4.
54 -
5.
15
6.
3+4
+Sy
2y+ 10
5x-
3r+ 3y
Determine whether a figure with the given vertices is a parallelogram. Use the
method indicated.
7. L(-3, 2), M(5, 2), N(3, -6), O(-5, -6): Slope Formula
8. W(-5, 6), X(2, 5), Y(-3, -4), Z(-8, -2); Distance Formula
9. Q(-5, 4), R(0, 6), S(3, -1), T(-2, -3); Midpoint Formula
10. G(-5, 0), H(-13, 5), (-10, 9),(-2, 4); Distance and Slope Formulas
Extra Practice 769
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