servicexpressmaroc
General
Algebra
Geometry
Coordinate-geometry
Statistics
Calculus
servicexpressmaroc
servicexpressmaroc
Home
General
Algebra
Geometry
Coordinate-geometry
Statistics
Calculus
MATH SOLVE
Home
The function y = 1.29x + 3 represents the price y a website store charges for shipping x items. Which is a reasonable range for this function?F- {…1.71, 3, 4.29, 5.58, 6.87, …}G- {4.29, 5.58, 6.87, …}H- {1, 2, 3, …}J- all positive real numbers
General
5 months ago
A lawn has a perimeter of 300 ft and width of 60ft and a bag of grass seeds cover 270ft how many seeds are needed for the new lawn
General
5 months ago
4. IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. In arandom sample of 900, approximately how many people will have IQs between 85 and 120?
General
5 months ago
HELP ASAP 100PTS PART A AND PART B DONT COPY OTHERS I CAN TELL AND REPORT YOUA scientist is studying the growth of a particular species of plant. He writes the following equation to show the height of the plant f(n), in cm, after n days:f(n) = 10(1.02)nPart A: When the scientist concluded his study, the height of the plant was approximately 11.04 cm. What is a reasonable domain to plot the growth function?Part B: What is the average rate of change of the function f(n) from n = 1 to n = 5, and what does it represent?
General
5 months ago
30 pt, easyishPLEASE HELP AND WRITE SOMETHING GOOD.HELP PLEASEWhat is the starting point and rate of change fora(x) = 210(1.12)xplease help FAST
General
5 months ago
Compute the lower Riemann sum for the given function f(x)=x2 over the interval x∈[−1,1] with respect to the partition P=[−1,− 1 2 , 1 2 , 3 4 ,1].
General
5 months ago
Let C be the positively oriented square with vertices (0,0), (1,0), (1,1), (0,1). Use Green's Theorem to evaluate the line integral ∫C7y2xdx+8x2ydy.
General
5 months ago
Let A and B be n x n matrices.The determinant of A is the product of the diagonal entries in A. Select the correct choice below and, if necessary, fill in the answer box to complete your choice.A.The statement is true because the determinant of any triangular matrix A is the product of the entries on the main diagonal of A.B.The statement is false because the determinant of the 2×2 matrix A = __ is not equal to the product of the entries on the main diagonal of A.(Type an integer or simplified fraction for each matrixelement.)C.The statement is true because the determinant of any square matrix A is the product of the entries on the main diagonal of A.
General
5 months ago
A student club holds a meeting. The predicate M(x) denotes whether person x came to the meeting on time. The predicate O(x) refers to whether person x is an officer of the club. The predicate D(x) indicates whether person x has paid his or her club dues. The domain is the set of all members of the club. Give a logical expression that is equivalent to each English statement below.(a) Someone is not an officer.b) All the officers came on time to the meeting.(c) Everyone was on time for the meeting.(d) Everyone paid their dues or came on time to the meeting.(e) At least one person paid their dues and came on time to the meeting.(f) There is an officer who did not come on time for the meeting.
General
5 months ago
Rob owns 1/8 of the stock in a local bread company. His sister Talia owns half as much stock as Rob. What part of the stock is owned by neither Rob nor Talia?Please show work so I can use it as a visual for my next question on homework please!
General
5 months ago
If on a scale drawing 75 feet are represented by 45 inches, then a scale of 1/5 inch represents how many feet?
General
5 months ago
A manufacturer must decide whether to build a small or a large plant at a new location. Demand at the location can be either low or high, with probabilities estimated to be 0.4 and 0.6, respectively. If a small plant is built, and demand is high, the production manager may choose to maintain the current size or to expand. The net present value of profits is $223,000 if the firm chooses not to expand. However, if the firm chooses to expand, there is a 50% chance that the net present value of the returns will be 330,000 and a 50% chance the estimated net present value of profits will be $210,000. If a small facility is built and demand is low, there is no reason to expand and the net present value of the profits is $200,000. However, if a large facility is built and the demand turns out to be low, the choice is to do nothing with a net present value of $40,000 or to stimulate demand through local advertising. The response to advertising can be either modest with a probability of .3 or favorable with a probability of .7. If the response to advertising is modest, the net present value of the profits is $20,000. However, if the response to advertising is favorable, then the net present value of the profits is $220,000. Finally, if the large plant is built and the demand happens to be high, the net present value of the profits $800,000a) Draw a decision tree b) Determine the payoff for each decision and event node. Which alternative should the manufacturer choose?
General
5 months ago
Use the Midpoint Rule with the given value of n to approximate the integral. Round the answer to four decimal places. 64 0 sin( x ) dx, n = 4
General
5 months ago
A New York Times article titled For Runners, Soft Ground Can Be Hard on the Body considered two perspectives on whether runners should stick to hard surfaces or soft surfaces following an injury. One position supported running on soft surfaces to relieve joints that were in recovery from injury. The second position supported running on hard surfaces since soft surfaces can be uneven, which may make worse those injuries a soft surface was intended to help. Suppose we are given sufficient funds to run an experiment to study this topic. With no studies to support either position, which of the following hypotheses would be appropriate? A.The second position makes the more sense, so this should be a one-sided test. In this case, we should form the alternative hypothesis around the first position.B. The first position is more sensible, so this should postpone defining the hypotheses until after we collect data to guide the rest.C. Because there is uncertainty, we should postpone defining the hypotheses until after we collect data to guide the test.D. Because we would be interested in any difference between running on hard and soft surfaces, we should use a two-sided hypothesis test
General
5 months ago
a. Find the critical point of the given function and then determine whether it is a local maximum, local minimum, or saddle point.f(x, y) = x2 − y2 + 3xyb. Find the critical point of the given function and then determine whether it is a local maximum, local minimum, or saddle point.f(x, y) = x2 + y2 − xy
General
5 months ago
A new surgical procedure is said to be successful 60% of the time. Suppose the operation is performed nine times and the results are assumed to be independent of one another. What are the probabilities of these events? (Round your answers to three decimal places.)
General
5 months ago
A hotel chain wants to estimate the average number of rooms rented daily in each month. The population of rooms rented daily is assumed to be normally distributed for each month with a standard deviation of 24 rooms. During June, a sample of 16 days has a sample mean of 48 rooms. This information is used to calculated an interval estimate for the population mean to be from 40 to 56 rooms. What is the level of confidence of this interval?
General
5 months ago
Sally invested money into two different accounts at the same time. The system of inequalities represents the balance of each account where x represents the number of years the money has been invested.Account A: y≥1.13x+1000Account B: y≥1.08x+1000What is true in the context of the situation based on the system of inequalities?Select True or False for each statement.Statement True FalseSally initially invests more money into Account A than Account B.The rate at which the balance of Account A grows is greater than the rate at which the balance of Account B grows.Sally invests a total of $1000 into the two accounts.
General
5 months ago
A volleyball league organizer collected $2,040 for both divisions of volleyball teams.teams.the blue division costs &160 per team and the red division costs $180 per team how many teams will play in each division
General
5 months ago
A volleyball league collected $2,040 for both division of volleyball teams the blue division costs &160 per team and the red division costs $180 per team.how many teams will play in each division
General
5 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
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
Next