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Concept explainers
Electricity consumption. The daily consumption of electricity (in millions of kilowatt-hours) in a large city is a continuous random variable with probability density function
(A) Find the expected daily consumption of electricity.
(B) Find the median daily consumption of electricity.
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Chapter 11 Solutions
Calculus for Business, Economics, Life Sciences, and Social Sciences (14th Edition)
- 1. One of the partial fractions for 2 4x²+x-9 x3+2x²-3x 2 x+1 a) x23 b) x 1½ c) x² d) x-1 x isarrow_forward1. One of the partial fractions for 2 2 4x²+x-9 x3+2x²-3x a) x3 b) x11 c) x² d) z x-1 2. Identify the improper integral. 1 x 2 x dx a) 3x dx b) f² 3x dx 0 3-2x 0 3-2x x is c) √2^: 4 √232x dx d) fo² 3x dx 1 1 0 3-2x B. So eax dx converges to if : a) O if a0 c) - 1½ ifa 0arrow_forwardComplete the square and find the indefinite integral. (Remember to use absolute values where appropriate. Use C for the constant of integration.) dx x²-12x+27arrow_forward
- Complete the table. Enter DNE if a quantity doesn't exist or NEI if not enough information is given. f(c) limx-->c- f(x) limx-->c+ f(x) limx -->c f(x) continuity at x=c 2 4arrow_forwardFind the indefinite integral. (Use C for the constant of integration.) 9x arcsin(x) dxarrow_forwardFind the indefinite integral using the substitution x = 5 sin(e). (Use C for the constant of integration.) 1 dx (25-x²)3/2arrow_forward
- Find the indefinite integral using the substitution x = 7 sec(0). (Use C for the constant of integration.) √ ׳ √x² - 49 dxarrow_forwardUse the Cauchy Riemann equations (polar form version). Also, describe what happens at the branch cut.arrow_forwardb. i. Show that the following matrix is orthogonal. A = ドードー ii Find the inverse of matrix A. Show all working in an organized/orderly manner. 2 3 -619 A = 42 3 1 5 B-1127) a. Given D = , decode the following message: 32, 24, 42, 28, 24, 40, 50, 60, 132, 96, 12, 24arrow_forward
- 2 Graph of h 6. The graph of the function h is given in the xy-plane. Which of the following statements is correct? , the graph of h is increasing at an increasing rate. (A) For (B) For (C) For 苏|4 K|4 π π , the graph of h is increasing at a decreasing rate. 2 0 and b>1 (B) a>0 and 01 (D) a<0 and 0arrow_forwardQUESTION 4 Peter says that the following expressions can be simplified into one trigonometric ratio without the use of a calculator. Prove that Peter is correct by simplifying the following expressions into one trigonometric ratio: 4.1 sin 43° + sin 17º (5)arrow_forward3. Consider the sequences of functions fn: [-T, π] → R, sin(n²x) n(2) n (i) Find a function f : [-T, π] R such that fnf pointwise as n∞. Further, show that f uniformly on [-T,π] as n→ ∞. [20 Marks] (ii) Does the sequence of derivatives f(x) has a pointwise limit on [-7,π]? Justify your answer. [10 Marks]arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
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