Concept explainers
Satellites When satellites observe Earth, they can scan only part of Earth's surface. Some satellites have sensors that can measure the angle
(a) Show that
(b) Find the rate at which h is changing with respect to
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Chapter 2 Solutions
Calculus Loose Leaf Bundle W/webassign
- For the position function s(t) = - 16t² + 105t, complete the following table with the appropriate average velocities. Then make a conjecture about the value of the instantaneous velocity at t = 1. Time Interval Average Velocity [1,2] Complete the following table. Time Interval Average Velocity [1, 1.5] [1, 1.1] [1, 1.01] [1, 1.001] [1,2] [1, 1.5] [1, 1.1] [1, 1.01] [1, 1.001] ப (Type exact answers. Type integers or decimals.) The value of the instantaneous velocity at t = 1 is (Round to the nearest integer as needed.)arrow_forwardFind the following limit or state that it does not exist. Assume b is a fixed real number. (x-b) 40 - 3x + 3b lim x-b x-b ... Select the correct choice below and, if necessary, fill in the answer box to complete your choice. (x-b) 40 -3x+3b A. lim x-b x-b B. The limit does not exist. (Type an exact answer.)arrow_forwardx4 -289 Consider the function f(x) = 2 X-17 Complete parts a and b below. a. Analyze lim f(x) and lim f(x), and then identify the horizontal asymptotes. x+x X--∞ lim 4 X-289 2 X∞ X-17 X - 289 lim = 2 ... X∞ X - 17 Identify the horizontal asymptotes. Select the correct choice and, if necessary, fill in the answer box(es) to complete your choice. A. The function has a horizontal asymptote at y = B. The function has two horizontal asymptotes. The top asymptote is y = and the bottom asymptote is y = ☐ . C. The function has no horizontal asymptotes. b. Find the vertical asymptotes. For each vertical asymptote x = a, evaluate lim f(x) and lim f(x). Select the correct choice and, if necessary, fill in the answer boxes to complete your choice. earrow_forwardExplain why lim x²-2x-35 X-7 X-7 lim (x+5), and then evaluate lim X-7 x² -2x-35 x-7 x-7 Choose the correct answer below. A. x²-2x-35 The limits lim X-7 X-7 and lim (x+5) equal the same number when evaluated using X-7 direct substitution. B. Since each limit approaches 7, it follows that the limits are equal. C. The numerator of the expression X-2x-35 X-7 simplifies to x + 5 for all x, so the limits are equal. D. Since x²-2x-35 X-7 = x + 5 whenever x 7, it follows that the two expressions evaluate to the same number as x approaches 7. Now evaluate the limit. x²-2x-35 lim X-7 X-7 = (Simplify your answer.)arrow_forwardA function f is even if f(x) = f(x) for all x in the domain of f. If f is even, with lim f(x) = 4 and x-6+ lim f(x)=-3, find the following limits. X-6 a. lim f(x) b. +9-←x lim f(x) X-6 a. lim f(x)= +9-←x (Simplify your answer.) b. lim f(x)= X→-6 (Simplify your answer.) ...arrow_forwardEvaluate the following limit. lim X-X (10+19) Select the correct answer below and, if necessary, fill in the answer box within your choice. 10 A. lim 10+ = 2 ☐ (Type an integer or a simplified fraction.) X-∞ B. The limit does not exist.arrow_forwardFind the following limit or state that it does not exist. x² +x-20 lim x-4 x-4 Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. lim x²+x-20 x-4 (Type an exact answer.) x→4 B. The limit does not exist.arrow_forwardDetermine the intervals on which the following function is continuous. f(x) = x - 5x + 6 2 X-9 On what interval(s) is f continuous? (Simplify your answer. Type your answer in interval notation. Use a comma to separate answers as needed.)arrow_forwardFind the following limit or state that it does not exist. 2 3x² +7x+2 lim X-2 6x-8 Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. lim 3x²+7x+2 6x-8 (Simplify your answer.) X-2 B. The limit does not exist.arrow_forwardFind the following limit or state that it does not exist. X-2 lim x-2 5x+6 - 4 Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. lim X-2 X-2 15x+6 = (Type an exact answer.) - 4 B. The limit does not exist.arrow_forward(a) Sketch the graph of a function that is not continuous at 1, but is defined at 1. (b) Sketch the graph of a function that is not continuous at 1, but has a limit at 1. (a) Which of the following graphs shows a function that is not continuous at 1, but is defined at 1. ○ A. Ay ✓ B. 5 X ✓ (b) Which of the following graphs shows a function that is not continuous at 1, but has a limit at 1. ○ A. B. X y 5- -5 5 ✓ ✓ 5 ☑ 5 X y ☑ LVarrow_forwardIf lim f(x)=L and lim f(x) = M, where L and M are finite real numbers, then what must be true about L x-a x-a+ and M in order for lim f(x) to exist? x-a Choose the correct answer below. A. L = M B. LMarrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
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