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course Mth 1158
1/29 3:30
Assignment 2 WORK NOW problems11. -2.5, -1, 0, 1, 0.25, ¾, 5/2 (as understood by the number line)
15. -1>-2
25. x<2
31. -2…….-1 ……0……1…….2.. -> (the -1 is not included in the graphing, but all the numbers to the right/positive are included.)
37. d(A,E)=|-3-3|=6 units
39. x+2y=-2+(2*3)=4
47. |x+y|=|3+-2|=1
57. (c) x=0 not
75. 1/16
77. 3^-6 x 3^4=3^-2=1/3^2=1/9
83. 4
87. x^4y^-2= x^4/y^2
95. 2(2)(-1)^-1=-4
153.4x10^8=400,000,000
Homework:
3. strict, not equal.
6. True, positive
9. False
13. ½>0 any positive number is greater than zero
16. -3<-5/2 or 2.5, which is closer to zero and greater
19. ½=0.5, fraction/decimal equivalent
22. ¼=.025, fraction/decimal equivalent
25. x<2
28. x>2
31. -2…….-1 ……0……1…….2.. -> (the -1 is not included in the graphing, but all the numbers to the right/positive are included.)
34. d(C,A)=|0-(-3)|=3
37. d(A,E)=|-3-3|=6
40. 3x+y=(3*-2)+3=-3
42. -2x+xy=(-2*-2)+(-2*3)=4+-6=-2
46.(2x-3)/y=2*3-3/3=1
49. |3|+|-2|=5
52. |-2|/-2=-1
55. ||12|-|-10||=2
58. (c.) x=0,
62. (c.), (b.)
64. (c.)
69. F=32 C=5/9(32-32)=0 degrees Celsius
70.F=212 C=5/9(212-32)=100 degrees Celsius
73. 16, product of two negatives are a positive
79.(1/9)to the power of negative 1=9
82. 6
85. 64x^6
88. y^3/x^3
90. y/x^2(y^2)
94. -125x^6/216y^6
97. 2^2+(-1)^2=5
102. 2, square root of squared number equals that number
105. 1/2
108. If x=1, then 4(1)^3+3(1)^2-1+2=8 If x=2, then 4(2)^3+3(2)-2+2=44
111. (8.2)^6=304006.671
114. (2.2)-5=1/51.53632
117. 1/4,325.969
120. 3.214/10^1
122. 4.21x10^3
125. 4.23x10^4
128. 97,000
131. 110,000,000
134. 0.6453
137. Circumference=2pi(1/2diameter)
140. a^2+(b^2)3=c^2
143. V=Length(width)height=x^3
146.$210+80-120+25-60-32-5+98
149. a.) |108-110|=2, which is acceptable because 2<=5
b.) |104-110|=6, which is not acceptable because 6 >5
152. a.) |97-98.6|=1.6, which is not acceptable because 1.6>1.5
b.) |100-98.6|=1.4, which is acceptable because 1.4<1.5
156. 0.0000001 meter
158. 5x10^-2
161.No, 1/3 is larger. A bar should be included above the 3 in the decimal.
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Please see the note I appended to your first submission. You need to be submitting Queries, rather than a list of undocumented answers.
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