EBK INTERMEDIATE ALGEBRA
13th Edition
ISBN: 9780134719023
Author: Johnson
Publisher: YUZU
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Chapter R.5, Problem 1DE
To determine
To calculate: The simplified form of the expression
Expert Solution & Answer
Answer to Problem 1DE
Solution:
The expression
Explanation of Solution
Given information:
The provided expression is
Formula Used:
Follow the rules below to add.
(1): To add the positive numbers, add the numbers and the result is positive.
(2): To add negative numbers, add the absolute values and make the answer negative.
(3): Combination of positive and negative numbers.
a) The numbers with same absolute value and opposite signs add up to 0.
b) If the numbers are of different absolute values, subtract the smaller value from the larger value and put the sign of the value with greater absolute value to the answer.
(4): One number is zero; sum is the number other than zero.
Calculation:
Consider the expression,
Use the above rules to add:
One negative and one positive are added.
Subtract the absolute values of smaller from the greater as shown below,
Put the sign of the number with greater absolute value in the answer as shown below,
Hence, the expression
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Name
Assume there is the following simplified grade book:
Homework Labs | Final Exam | Project
Avery
95
98
90
100
Blake
90
96
Carlos
83
79
Dax
55
30
228
92
95
79
90
65
60
Assume that the weights used to compute the final grades are homework 0.3, labs 0.2,
the final 0.35, and the project 0.15.
| Write an explicit formula to compute Avery's final grade using a single
inner product.
Write an explicit formula to compute everyone's final grade simultane-
ously using a single matrix-vector product.
1. Explicitly compute by hand (with work shown) the following Frobenius inner
products
00
4.56 3.12
(a) ((º º º). (156
(b)
10.9
-1
0
2)),
Fro
5')) Fro
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