Algebra and Trigonometry
4th Edition
ISBN: 9781305719781
Author: James Stewart, Lothar Redlin, Saleem Watson
Publisher: PEARSON
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Concept explainers
Question
Chapter B, Problem 1E
To determine
The solution for the expression.
Expert Solution & Answer
Answer to Problem 1E
Solution:
The solution for the expression is
Explanation of Solution
Given:
The expression is,
Approach:
The significant figures in a number are the ones from first nonzero digit to the last nonzero digit when reading from left to right.
When adding or subtracting, round off the final result so that it has its last significant digit in the decimal place in which the least accurate given value has its last significant digit.
Calculation:
Evaluate the expression.
Therefore, the solution for the expression is
Conclusion:
Hence, the solution for the expression is
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Students have asked these similar questions
10-2
Let A =
02-4
and b =
4
Denote the columns of A by a₁, a2, a3, and let W = Span {a1, a2, a̸3}.
-4 6
5
- 35
a. Is b in {a1, a2, a3}? How many vectors are in {a₁, a₂, a3}?
b. Is b in W? How many vectors are in W?
c. Show that a2 is in W. [Hint: Row operations are unnecessary.]
a. Is b in {a₁, a2, a3}? Select the correct choice below and, if necessary, fill in the answer box(es) to complete your
choice.
○ A. No, b is not in {a₁, a2, 3} since it cannot be generated by a linear combination of a₁, a2, and a3.
B. No, b is not in (a1, a2, a3}
since b is not equal to a₁, a2, or a3.
C. Yes, b is in (a1, a2, a3} since b = a
(Type a whole number.)
D. Yes, b is in (a1, a2, 3} since, although b is not equal to a₁, a2, or a3, it can be expressed as a linear
combination of them. In particular, b =
+
+
☐ az.
(Simplify your answers.)
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4. The graph shows the printing rate of Printer A. Printer B can
print at a rate of 25 pages per minute. How does the printing
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The printing rate for Printer B is
than the rate
for Printer A because the rate of 25 pages per minute
is
than the rate of
for Printer A.
pages per minute
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Printer Rat
Number of Pages
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30
20
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Time (min)
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