Calculus for Business, Economics, Life Sciences, and Social Sciences (13th Edition)
13th Edition
ISBN: 9780321869838
Author: Raymond A. Barnett, Michael R. Ziegler, Karl E. Byleen
Publisher: PEARSON
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Chapter B.2, Problem 38E
Show that the sum of the first n even positive integers is n + n2, using formulas in this section.
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The three right triangles below are similar.
The acute angles LL, LR, and ZZ are all approximately measured to be 66.9°.
The side lengths for each triangle are as follows.
Note that the triangles are not drawn to scale.
Z
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66.9° 7.92 m
66.9°
80.68 m
66.9°
23.76 m
31.68 m
Take one
18.55 m
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P
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(a) For each triangle, find the ratio of the length of the side opposite 66.9° to the length of the
hypotenuse. Round your answers to the nearest hundredth.
JK
JL
PQ
PR
XY
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XZ
(b) Use the ALEKS Calculator to find sin 66.9°, cos 66.9°, and tan 66.9°.
Round your answers to the nearest hundredth.
sin 66.9° = ☐
cos 66.9°
tan 66.9° = ☐
(c) Which trigonometric function gives each ratio of sides in part (a)?
Osine
Ocosine
Otangent
none of these
According to an economist from a financial company, the average expenditures on "furniture and household appliances" have been lower for households in the Montreal area than those in the Quebec region.
A random sample of 14 households from the Montreal region and 16 households from the Quebec region was taken, providing the following data regarding expenditures in this economic sector.
It is assumed that the data from each population are distributed normally.
We are interested in knowing if the variances of the populations are equal. a) Perform the appropriate hypothesis test on two variances at a significance level of 1%. Include the following information:
i. Hypothesis / Identification of populations ii. Critical F-value(s) iii. Decision rule iv. F-ratio value v. Decision and conclusion
b) Based on the results obtained in a), is the hypothesis of equal variances for this socio-economic characteristic measured in these two populations upheld?
c) Based on the results obtained in a),…
Please plot graphs to represent the functions
Chapter B.2 Solutions
Calculus for Business, Economics, Life Sciences, and Social Sciences (13th Edition)
Ch. B.2 - Which of the following can be the first four terms...Ch. B.2 - (A)If the 1st and 15th terms of an arithmetic...Ch. B.2 - Prob. 3MPCh. B.2 - MATCHED PROBLEM 4 Find the sum of all the odd...Ch. B.2 - Find the sum of the first eight terms of the...Ch. B.2 - Repeat Example 6 with a loan of 6,000 over 5...Ch. B.2 - Repeat Example 7 with a tax rebate of 2,000....Ch. B.2 - In Problems 1 and 2, determine whether the...Ch. B.2 - In Problems 1 and 2, determine whether the...Ch. B.2 - In Problems 38, determine whether the finite...
Ch. B.2 - In Problems 38, determine whether the finite...Ch. B.2 - Prob. 5ECh. B.2 - In Problems 38, determine whether the finite...Ch. B.2 - In Problems 38, determine whether the finite...Ch. B.2 - In Problems 38, determine whether the finite...Ch. B.2 - Let a1, a2, a3, , an, be an arithmetic sequence....Ch. B.2 - Let a1, a2, a3, , an, be an arithmetic sequence....Ch. B.2 - Prob. 11ECh. B.2 - Let a1, a2, a3, , an, be an arithmetic sequence....Ch. B.2 - Let a1, a2, a3, , an, be an arithmetic sequence....Ch. B.2 - Prob. 14ECh. B.2 - Prob. 15ECh. B.2 - Let a1, a2, a3, , an, be a geometric sequence. In...Ch. B.2 - Prob. 17ECh. B.2 - Let a1, a2, a3, , an, be a geometric sequence. In...Ch. B.2 - Prob. 19ECh. B.2 - Let a1, a2, a3, , an, be a geometric sequence. In...Ch. B.2 - Let a1, a2, a3, , an, be a geometric sequence. In...Ch. B.2 - Let a1, a2, a3, , an, be a geometric sequence. In...Ch. B.2 - Prob. 23ECh. B.2 - Let a1, a2, a3, , an, be a geometric sequence. In...Ch. B.2 - S41=k=141(3k+3)=?Ch. B.2 - Prob. 26ECh. B.2 - S8=k=18(2)k1=?Ch. B.2 - S8=k=182k=?Ch. B.2 - Find the sum of all the odd integers between 12...Ch. B.2 - Find the sum of all the even integers between 23...Ch. B.2 - Find the sum of each infinite geometric sequence...Ch. B.2 - Repeat Problem 31 for: (A)16, 4, 1, (B)1, 3, 9, ...Ch. B.2 - Find f(1)+f(2)+f(3)++f(50) if f(x) = 2x 3.Ch. B.2 - Find g(1)+g(2)+g(3)++g(100) if g(t) = 18 3t.Ch. B.2 - Find f(1)+f(2)++f(10) if f(x)=(12)x.Ch. B.2 - Find g(1)+g(2)++g(10) if g(x) = 2x.Ch. B.2 - Prob. 37ECh. B.2 - Show that the sum of the first n even positive...Ch. B.2 - If r = 1, neither the first form nor the second...Ch. B.2 - Prob. 40ECh. B.2 - Does there exist a finite arithmetic series with...Ch. B.2 - Does there exist a finite arithmetic series with...Ch. B.2 - Does there exist a infinite geometric series with...Ch. B.2 - Does there exist an infinite geometric series with...Ch. B.2 - Loan repayment. If you borrow 4,800 and repay the...Ch. B.2 - Loan repayment. If you borrow 5,400 and repay the...Ch. B.2 - Economy stimulation. The government, through a...Ch. B.2 - Economy stimulation. Due to reduced taxes, a...Ch. B.2 - Compound interest. If 1,000 is invested at 5%...Ch. B.2 - Compound interest. If P is invested at 100r%...
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