math4finance
General
Algebra
Geometry
Coordinate-geometry
Statistics
Calculus
math4finance
math4finance
Home
General
Algebra
Geometry
Coordinate-geometry
Statistics
Calculus
MATH SOLVE
Home
The Bobcats had a win-loss record of 41-23 before their star player, Melissa, got injured. Melissa didn’t play in any more games, and the Bobcats finished the season with an overall win-loss record of 54-34. What is the absolute difference in the Bobcats’ win percentages with and without Melissa? Express your answer to the nearest whole number.
General
6 months ago
A tumor is injected with 0.4 grams of Iodine-125, which has a decay rate of 1.15% per day. To the nearest day, how long will it take for half of the Iodine-125 to decay?
General
6 months ago
A restaurant manager asks all of the customers this month to take an online survey (and get a free appetizer their next visit). It turns out that 241 customers actually take the survey, and of these 209 were "extremely satisfied" with their visit. Set up an approximate 95% confidence interval for the proportion of all the restaurant's customers that say they were "extremely satisfied' with their visit. Select only one of the boxes below. A. The Normal curve cannot be used to make the requested confidence interval. B. Making the requested confidence interval does not make any sense. C. It is appropriate to compute a confidence interval for this problem using the Normal curve. If it is appropriate to compute a confidence interval for this problem using the Normal curve, then enter the confidence interval below. Otherwise, enter (0,0 for the confidence interval. [0.82 0.91].
General
6 months ago
Megan worked 11 hours more than Juan last month. If Megan worked 4 hours for every 3 hours that Juan worked, howmany hours did they each work?
General
6 months ago
4. The red graph (1) is the graph of f(x) = log(x). Describe the transformation of the blue function (2) and write the equation of the graph.
General
6 months ago
Which point is the incenter of △ABC ?Enter your answer in the box.point A right triangle ABC with right angle at C and vertical base A C is made. A D is angle bisector of angle B A C. B D is angle bisector of angle A B C. C F is angle bisector of angle A C B. Angle bisectors A D and B D and C F meet at an interior point D. G E is perpendicular bisector of side B C. Perpendicular bisectors of all three sides meet at point E. Point E is midpoint of side A B.
General
6 months ago
Which regression model best fits the data set? (2, 13), (4, 8), (5, 7.5), (7, 9), (8, 12)A. linearB. quadraticC. exponential growthD. exponential decay
General
6 months ago
The graph of the parent function p(x)=x^2 passes through the point E (21,184). The graph p is transformed such that the new graph represents the following function: f(x)=(x+8)^2-5 if this transformation translates point E to a new location what are the cooridinates of E
General
6 months ago
Which of the numbers 285, 629, 5490, 7392, 15708, 43695 are divisible by 3 but not by 9.
General
6 months ago
Which set of rational numbers is arranged from least to greatest? 1 over 5, −1.4, negative 1 over 2, 3 3, negative 1 over 2, −1.4, 1 over 5 3, 1 over 5, −1.4, negative 1 over 2 −1.4, negative 1 over 2, 1 over 5, 3
General
6 months ago
The claim is that the proportion of adults who smoked a cigarette in the past week is less than 0.30, and the sample statistics include nequals1491 subjects with 462 saying that they smoked a cigarette in the past week. Find the value of the test statistic.
General
6 months ago
A new carpet cleaning company claims that they can clean 3 times as many carpets in 1 week as another company. If both companies combined can 332 carpets in 1 week, how many carpets does the new company clean?
General
6 months ago
The distance from the centroid of a triangle to its vertices are 16cm, 17cm, and 18cm. What is the length of the shortest median
General
6 months ago
The goals against average (A) for a professional hockey goalie is determined using the formula A = 60 . In the formula, g represents the number of goals scored against the goalie and t represents the time played, in minutes. Which is an equivalent equation solved for g? A_At/60 = g B_ A/60t= g C_60A/t = g D_60At = g
General
6 months ago
A random sample of 24 items is drawn from a population whose standard deviation is unknown. The sample mean is x⎯⎯ = 880 and the sample standard deviation is s = 5. Use Appendix D to find the values of Student’s t. (a) Construct an interval estimate of μ with 99% confidence. (Round your answers to 3 decimal places.) The 99% confidence interval is from 877.371 to (b) Construct an interval estimate of μ with 99% confidence, assuming that s = 10. (Round your answers to 3 decimal places.) The 99% confidence interval is from 874.742 to (c) Construct an interval estimate of μ with 99% confidence, assuming that s = 20. (Round your answers to 3 decimal places.) The 99% confidence interval is from 869.484 to (d) Describe how the confidence interval changes as s increases.
General
6 months ago
Look at the picture. I need to find svt. The answer is 17 degrees but I don't know how to get that answer working it out.
General
6 months ago
Fewer young people are driving. In 1983, 87 percent of 19 year-olds had a driver's license. Twenty-five years later that percentage had dropped to 75 percent (University of Michigan Transportation Research Institute website, April 7, 2012). Suppose these results are based on a random sample of 1200 nineteen year-olds in 1983 and again in 2008.a. At 95% confidence, what is the margin of error and the interval estimate of the number of nineteen year old drivers in 1983? Round your answers to three decimal places.Margin of error = (four decimal places)Interval estimate = tob. At 95% confidence, what tis the margin of error and the interval estimate of the number of nineteen year old drivers in 2008? Round your answers to four decimal places.Margin of error =Interval estimate = toc. Is the margin of error the same in parts (a) and (b)?- Select your answer -YesWhy, or why not?
General
6 months ago
The incomes in a certain large population of college teachers have a Normal distribution, with mean $75,000 and standard deviation $10,000. Sixteen teachers are selected at random from this population to serve on a committee. What is the probability that their average salary is more than $77,500?
General
6 months ago
The ratio of Monarch butterflies to swallowtail in the butterfly garden is 5:3. The ratio of swallowtail to Viceroy is 3:2. There are 30 Monarchs in the park. How many swallowtails are there? Viceroy?
General
6 months ago
The fixed costs to produce a certain product are 25,000 and the variable costs are $12.00 per item. The revenue for a certain product is $17.00 each. If the company sells x products, then what is the revenue equation ?
General
6 months ago
Previous
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
Next