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find the 9th term of the geometric sequence
General
3 months ago
Sand is poured onto a surface at 13 cm3/sec, forming a conical pile whose base diameter is always equal to its altitude. How fast is the altitude of the pile increasing when the pile is 1 cm high? Note that the volume of a cone is 13πr2h where r is the radius of the base and h is the height of the cone.
General
3 months ago
In the xy-plane, C and D are circles centered at the origin with radii p 17 and p 5, respectively. Quantity A: The number of points (a; b) on circle C where both a and b are integers Quantity B: The number of points (a; b) on circle D where both a and b are integers A. Quantity A is greater. B. Quantity B is greater. C. The two quantities are equal. D. The relationship cannot be determined from the information given.
General
3 months ago
please choose all irational thx ^_^
General
3 months ago
An oil exploration firm is formed with enough capital to finance ten explorations. The probabil- ity of a particular exploration being successful is .1. Assume the explorations are independent. Find the mean and variance of the number of successful explorations.
General
3 months ago
If a(x) = 2x - 4 and b(x) = x + 2, which of the following expressions produces a quadratic function? (ab)(x) (StartFraction a Over b EndFraction) (x) (a – b)(x) (a + b)(x)
General
3 months ago
At RSM summer camp 100 students had enough food for a 30-days stay. After 2 days 40 new students joined the camp. After that 2 weeks passed and half of the students left the camp. How many additional days of food need to be ordered ?
General
3 months ago
For this problem, assume 7 males audition, one of them being George, 6 females audition, one of them being Margaret, and 4 children audition. The casting director has 3 male roles available, 1 female role available, and 2 child roles available. (1) How many different ways can these roles be filled from these auditioners? (2) How many different ways can these roles be filled if exactly one of George and Margaret gets a part? (3) What is the probability (if the roles are filled at random) of both George and Margaret getting a part?
General
3 months ago
1. A student gets a summer job and sheâ€™ll receive a paycheck on the last day of the month in June, July, and August. If she immediately puts $ 100 each month into a savings account that pays 3% annual interest, but compounded monthly, how much money will accumulate in her account by the end of November when sheâ€™s ready to do her Christmas shopping?
General
3 months ago
Susan wants to make pumpkin bread and zucchini bread for the school bake sale. She has 15 eggs and 16 cups of flour in her pantry. Her recipe for one loaf of pumpkin bread uses 2 eggs and 3 cups of flour. Her recipe for one loaf of zucchini bread uses 3 eggs and 4 cups of flour. She plans to sell pumpkin bread loaves for $5 each and zucchini bread loaves for $4 each. Susan wants to maximize the money raised at the bake sale. Let x represent the number of loaves of pumpkin bread and y represent the number of loaves of zucchini bread Susan bakes. What is the objective function for the problem?A. P = 15x + 16yB. P = 5x + 7yC. P = 5x + 4yD. P = 4x + 5y
General
3 months ago
Consider the hypothetical study described below. Based solely on the information given, do you have reason to question the results of the study? Explain your reasoning. A TV talk show host asks the TV audience, "Do you support new national mileage standards forautomobiles?" and asks people to vote by telephone at a toll-free number. Is there reason to question the results?A. No, there is not reason. The goal of the study is clear.B. Yes, there is reason. The TV audience might not be representative of the population.C. No, there is not reason. There is no bias in the study.D. Yes, there is reason. The wording of the question might produce inaccurate or dishonest responses.E. Yes, there is reason. Call-in polls tend to be biased.F. No, there is not reason. It is unlikely that there are any confounding variables in the study.
General
3 months ago
Theo and Kade worked on a school project together. Theo worked on the project 3 fewer hours than Kade did. Altogether, they worked for atotal of 27 hours. How many hours did they each work on the school project?
General
3 months ago
PLZ HURRY IT'S URGENT!!A spinner is divided into four sections of equal size, numbered 1, 2, 3, and 4. You spin it three times, and get 1, 4, and 3. Which statement is FALSE? A. The theoretical probability of a 1 is 25%. B. The experimental probability of a 1 is 25%. C. If you spin the same spinner again and get different results, the experimental probabilities are different, but the theoretical probabilities have not changed. D. The experimental probability of a 2 is 0%.
General
3 months ago
Complete the two-column the proof by writing the appropriate reason for each statement.Given: m∠1 = m∠3Prove: m∠EBA = m∠CBDReasons (one is used twice): Angle Addition Postulate, Commutative Property of Addition, Substitution, Transitive PropertyAnswer:1. Statement: m∠1 = m∠31. Reason: Given2. Statement: m∠EBA = m∠2 + m∠32. Reason: ___________3. Statement: m∠EBA = m∠2 + m∠13. Reason: ___________4. Statement: m∠EBA = m∠1 + m∠24. Reason: ___________5. Statement: m∠1 + m∠2 = m∠CBD5. Reason: ___________6. Statement: m∠EBA = m∠CBD6. Reason: ___________
General
3 months ago
In an analysis of a poll of 800 Quebecers, 28% thought that the province of Quebec should separate from Canada. Another poll of 500 Texans found that 18% thought that the state of Texas should separate from the United States. a) In the sample of 800 people, about how many Quebecers thought Quebec should separate from Canada? In the sample of 500, how many Texans thought Texas should separate from the US? Round to nearest integer. Quebec ___________Texas ________________ (b) In these two samples, what is the pooled proportion of Texans and Quebecers that want to separate?Round your answer to three decimal places. p-hat:_____________ (d)Give the test statistic and the p-value. Round your answer for the test statistic to two decimal places and your answer for the p -value to three decimal places. Test Statistic:_______________p-value: ____________
General
3 months ago
PLEASE HELP!!!! If 300 cm2 of material is available to make a box with a square base and an open top, find the maximum volume of the box in cubic centimeters. Answer to the nearest cubic centimeter without commas. For example, if the answer is 2,000 write 2000.Please help and explain how to do it.
General
3 months ago
The speed of the current in a creek is 2mph. A person can kayak 10 mi upstream in the same time that it takes him to kayak 14 mi downstream. How long will it take the person to kayak 28 mi downstream?
General
3 months ago
YOU CAN BUY 5 CANS OF GREEN BEANS AT THE VILLAGE MARKET FOR $3.50YOU CAN BUY 10OF THE SAME CANS OF BEANS AT SAM'S CLUB FOR $ 7.10 WHICH STORE HAS THE BETTER BUY?
General
3 months ago
A conical (cone shaped) water tower has a height of 12 ft and a radius of 3 ft. Water is pumped into the tank at a rate of 4 ft^3/min. How fast is the water level rising when the water level is 6 ft?
General
3 months ago
A swim coach has at most $800 to buy equipment for the swim team. Each pull buoys costs $5.50 and each kickboard costs $10. Let x represent the number of pull buoys and y represent the number of kick boards. A) Write an inequality for the scenario B) could the coach purchase zeros pull buoys and 50 kick boards?C) could the coach purchase 125 pull buoys and 25 kick boards?D) Whats another combination of pull buoys and kick boards that work for your inequality?
General
3 months ago
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