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.
![In Exercises 5 to 22, find the missing lengths. Give your
answers in both simplest radical form and as approximations
correct to two decimal places.
In Exer
15. Gi
5.
Given:
Right AXYZ with mZX = 45° and XZ = 8
Find:
YZ and XY
Fir
16. Giv
Fire
Y
17. Giv
Exercises 5-8
Fin.
Right AXYZ with XZ YZ and XY = 10
XZ and YZ die
6. Given:
18. Giv
Find:
7. Given:
Right AXYZ with XZ = YZ and XY = 10V2
Find:
XZ and YZ
Finc
19. Give
Right AXYZ with mZX = 45° and
12V2
8. Given:
%3D
XY =
Find:
XZ and YZ
Find
9. Given:
Right ADEF with mZE = 60° and DE = 5
20. Give
Find:
DF and FE](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff292890f-6bc3-4860-b89c-21d1287654e8%2Fdb225e64-e43e-43c7-9022-48de42bf5a5e%2Fhmdjdn4_processed.jpeg&w=3840&q=75)
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