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MATH SOLVE
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A display case contains thirty-five gems, of which ten are real diamonds and twenty-five are fake diamonds. A burglar removes four gems at random, one at a time and without replacement. What is the probability that the last gem she steals is the second real diamond in the set of four?
General
4 months ago
How many electrons are in the nucleus of an atom with the atomic number of 20
General
4 months ago
Which of the following equations have no solutions?Choose all answers that apply:Choose all answers that apply:(Choice A)A33x-25=33x+2533x−25=33x+2533, x, minus, 25, equals, 33, x, plus, 25(Choice B)B33x+25=33x+2533x+25=33x+2533, x, plus, 25, equals, 33, x, plus, 25(Choice C)C33x-33=33x+2533x−33=33x+2533, x, minus, 33, equals, 33, x, plus, 25(Choice D)D33x+33=33x+2533x+33=33x+25
General
4 months ago
This table shows the number of suits sold in a men’s clothing store each month during the year.For which situation is the mode the best measure of central tendency to use? A. to determine the average number of suits sold each month B. to determine the number of suits sold such that the number of sales below that number is equal to the number of sales above that number C. to determine which month had the greatest number of suit sales D. to determine the difference between the greatest number of suits sold and the least number sold
General
4 months ago
A motorboat starts from rest (initial velocity v(0)=v₀=0). Its motor provides a constant acceleration of 4 ft /s², but water resistance causes a deceleration of v²/400 ft /s². Find v when t=7 s, and also find the limiting velocity as t → +[infinity] (that is, the maximum possible speed of the boat).
General
4 months ago
Slimp's Bookstore receives a box of books from each of five paperback publishers. Each box contains 21 different titles. The store manager decides there is room to display 4 books from each of 3 of the publishers. How many ways can the display be chosen?
General
4 months ago
find dy/dx by implicit differentiation: x^2y^3-7xy^2=10
General
4 months ago
10 men and 5 women are meeting in a conference room. Four people are chosen at random from the 15 to form a committee. (a) What is the probability that the committee consists of 2 men and 2 women? (b) Among the 15 is a couple, Bob and Jane. What is the probability that Bob and Jane both end up on the committee? (c) What is the probability that Bob ends up on the committee but Jane doesn’t?
General
4 months ago
Kew Co. had 3,000 units in work-in-process at April 1 that were 60% complete as to conversion cost. During April, 10,000 units were completed. At April 30, 4,000 units in work-in-process were 40% complete as to conversion cost. Direct materials are added at the beginning of the process. How many units were started during April?(a) 10,000.(b) 9,800.(c) 11,000.(d) 12,200.(e) None of the other answers are correct.
General
4 months ago
Find the equation of a line which passes through the points (-2,3) and (2,0)
General
4 months ago
School: Practice & Problem SolvingAssignm33. PS-7Question HelpCar Survey In a survey of 2,600 people who owned a certain type of car, 1,560 said they would buythat type of car again. What percent of the people surveyed were satisfied with the car?% of the people surveyed were satisfied with the car.(Type a whole number.)Enter your answer in the answer box and then click Check Answer.All parts showing -Clear AllCheck Answer
General
4 months ago
What is the value of 2.5 - 14.3 (-18.2)?
General
4 months ago
PLZ HELP I WASN'T AT SCHOOL WHEN TEACHED THISThe steps for solving an equation are shown above. Identify which property was used for each step.
General
4 months ago
During the first month of sales, a company sold 1,300,000units of a certain type of smartphone. During the samemonth, 15% of the units sold were returned. If sales andthe return rate remain the same for each of the next 5months, about how many units of this smartphone will bereturned to the company during this 6-month period?A) 195,000B) 975,000C) 1,170,000D) 6,630,000
General
4 months ago
SUPER URGENT!!!!!!!!!!!!!NEED ANSWERED NOW!!!! PLS!!!Use the linear combination method to solve the system of equations. Explain each step of your solution.3x-8y=7" "" " x+2y=-7
General
4 months ago
Select the correct answer. A pizza parlor uses square prisms for their pizza boxes. Due to the crust rising, the height of their boxes is always 2 inches. Additionally, the volume of the pizza box must be 450 cubic inches to fit their standard-sized pizza. A worker determined that the equation 2x2 = 450 could be used to find the side length, x, of the box needed to reach that volume. Determine which statement is true about the solutions to the equation. A. The solutions are -30 and 30 and both are reasonable side lengths. B. The solutions are -15 and 15 and both are reasonable side lengths. C. The solutions are -15 and 15, but only 15 is a reasonable side length. D. The solutions are -30 and 30 but only 30 is a reasonable side length.
General
4 months ago
Miguel conducts a survey of 750 college students to see how many of them have a part-time job. His results show that 500 of the 750 students have a part-time job. Kureshi does a survey of 1200 college students to see how many of them have a part-time job. His results are proportional to Miguel's. How many of the students that Kureshi surveyed responded that they have a part time job?
General
4 months ago
Estimate the line of the best fit using two points in the line (3,44)(5,60)
General
4 months ago
SUPER URGENT!!!!!!!! I NEED HELP!!!!!1 PLSSSS!!!!!Use the linear combination method to solve the system of equations. Explain each step of your solution. 3x-8y=7" " " " x+2y=-7
General
4 months ago
Cristobal is comparing the membership club fees at two different bookstores. At the first bookstore, it costs $17.05 annually to be a member of the club, but he will save 15% on all his purchases. At the second bookstore, it costs $28.57 annually to be a member of the club, but he will save 25% on all his purchases. How much does Cristobal need to spend in a year for the membership at the second bookstore to be the better value? A. $115.21 B. $144.00 C. $86.64 D. $132.48
General
4 months ago
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