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Chapter 1 Solutions
Prealgebra (6th Edition)
- 2z = el+cos(x+y) 24 = olt etz dy = 1 dt dz e²² + cos (+²+1++). 2++ (1+++cos C+²+1++) (+) dz 2+. etz 2t, + 2+⋅ cos (t² +++ 1) + t (1++1 dt + cos (+²+++1) 2. W= (yz) (yz) x x=e8++ 2 y= 3² + 3st, z=sent, hallar 2w 2w د 2u 2t 25 2t AX119 S Narrow_forwardpractice for test please help!arrow_forwardpractice for test please help!arrow_forward
- X MAT21 X MindTa X A 26308 X Answer X M9 | C X 10 EKU-- × E DNA S X H. pyle x C static/nb/ui/evo/index.html?elSBN=9780357038406&id=339416021&snapshotld=877369& CENGAGE MINDTAP nctions, Limits, and the Derivative In Exercises 15, 16, 17, 18, 19, and 20, refer to the graph of the function f and determine whether each statement is true or false. -3-2-1 4- 3+ y= f(x) 2 1+ x 1 2 3 4 5 6 AA aarrow_forwardex MAT21 X MindTa X A 26308 X Home X M9|C X 10 EKU-- × E DNA S X H. pylo x C Ch om/static/nb/ui/evo/index.html?elSBN 9780357038406&id=339416021&snapshotld=877369& CENGAGE MINDTAP : Functions, Limits, and the Derivative E 3 In Exercises 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, and 38, find the indicated one-sided limit, if it exists. 21. lim (2x+4) x+1+ Answer 22. lim (3x-4) x-1 23. lim x-3 x+2x+2 Answer 24. lim x+2 x1+x+1 1 25. lim x+0+ x Answer▾ 26. lim 1 x40X x-1 27. lim x+0+ x²+1 Answer 28. lim x + 1 x-2+ x2 -2x+3 $ 4 % 5 MacBook Pro A 6 27 & * ( 8 9 AA a searrow_forward5.12 A steel wire 300 feet long and 1½-½ inch in diameter weighs 0.042 #/ft. If the wire is suspended vertically from its upper end, calculate (a) the maximum tensile stress due to its own weight and (b) the maximum weight W that can be safely supported assuming a safety factor of three and an ultimate tensile stress of 65 ksi. a. The maximum tensile stress due to its own weight b. Maximum weightarrow_forward
- 5.6 The turnbuckles in the diagram shown are tightened until the compression block DB exerts a force of 10,000# on the beam at B. Member DB is a hollow shaft with an inner diameter of 1.0 inch and outer diameter of 2 inches. Rods AD and CD each have cross-sectional areas of 1.0 in.². Pin C has a diameter of 0.75 inch. Determine: a. The axial stress in BD- b. The axial stress in CD- c. The shearing stress in pin C. B UB CD PIN VIEWED FROM BELOWarrow_forward1. 2. In Exercises 1, 2, 3, 4, 5, 6, 7, and 8, use the graph of the function f to find lim f(x), lim f(x), and xa x+a+ lim f(x) at the indicated value of a, if the limit exists. x a Answ 2: the init X1starrow_forward1. 2. In Exercises 1, 2, 3, 4, 5, 6, 7, and 8, use the graph of the function f to find lim f(x), lim f (x), and xa x→a+ lim f (x) at the indicated value of a, if the limit exists. xa Ans 2: the lin X1st S 4+ 3 y = f(x) 2 1 2 3 4 5 6 a=3arrow_forward
- 5.15 The ends of the laminated-wood roof arch shown are tied together with a horizontal steel rod 90 feet, "10 inches" long, which must withstand a total load of 60 k. Two turn- buckles are used. All threaded rod ends are upset. a. Determine the required diameter D of the rod if the maximum allowable stress is 20 ksi. b. If the unstressed length of the rod is 90 feet, "10 inches" and there are four threads per inch on the upset ends, how many turns of one turnbuckle will bring it back to its unstressed length after it has elongated under full allowable tensile stress? E = 29 × 103 ksi. a. Required diameter D b. Number of turns LAMINATED WOOD ROOF ARCH TIE ROD TURNBUCKLE DETAIL: UPSET ENDarrow_forward1. 2. In Exercises 1, 2, 3, 4, 5, 6, 7, and 8, use the graph of the function f to find lim f(x), lim f(x), and xa x+a+ lim f(x) at the indicated value of a, if the limit exists. x a Answ 2: the init X1starrow_forward5.8 A reinforced concrete column is 12 feet long, and un- der load, it shortens 3 inches". Determine its average unit strain. Average Unit Strainarrow_forward
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