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MATH SOLVE
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There are four large groups of people, each with 1000 members. Any two of these groups have 100 members in common. Any three of these groups have 10 members in common. And there is 1 person in all four groups. All together, how many people are in these groups?
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2 months ago
The police rounded up 35 people suspected of robbing a bank. Each person was assigned a number from 1 to 35. After a short investigation, three of them were arrested, numbers #14, #17 and #26. They made the following statements under intensive questioning: #14: I’m innocent. #17: I’m innocent. #26: #14 is guilty. If only one of these statements is true, who robbed the bank?
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2 months ago
Laboratory experiment shows that the life of the average butterfly is normally distributed with a mean of 18.8 days and a standard deviation of 2 days. Find the probability that a butterfly will live between 12.04 and 18.38 days. a) 0.4164 b) 0.4203 c) 0.5828 d) 0.3893 e) 0.4202 f) None of the above.
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2 months ago
In a canoe race, A team paddles downstream 480 m in 60 seconds. The same team makes the trip upstream and 80 seconds. Find the teammates rate in Stillwater and the rate of the current period
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2 months ago
99 POINTS WILL GIVE BRAINLIEST!! No fake answers!A computer programmer has a 35% chance of finding a bug in any given program. What is the probability that she finds a bug within the first three programs she examines?A) 0.15B) 0.27C) 0.59d) 0.73A fair coin is flipped multiples times until it lands on heads. If the probability of landing on heads is 50%, what is the probability of first landing on heads on the fourth attempts?A) 0.625B) 0.0625C) 0.500D) 0.382
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2 months ago
simplify the rational expression. state any excluded values. x^2-3x-10/x+2
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2 months ago
PLEASE HELP ME IM BAD AT THIS EVEN THOUGH ITS REALLY EASY! SO YOU PROBABLY COULD DO IT!Melissa bought 3 loaves of freshly baked bread at a specialty bread shop. She paid twice as much for the whole grain bread as for the French bread, and $2.50 more for the cinnamon raisin bread than for the whole grain bread. She spent a total of $11.25 for the 3 loaves. If f represents the price of a loaf of French bread, which equations describe this situation? Select two answers. CHOICES BELOW
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2 months ago
Sonya paid $2.75 per pound for fresh fish last week. This week, she paid a total of $1.20 more when she purchased 3 pounds of fish. What is the price per pound this week, in dollars per pound?
General
2 months ago
James is two years younger than twice his sister Kate’s Age. Together their ages add up to 19.What is each of their ages?Identify(2pts): What is the problem? What do youneed to find or do? What will your final answerlook like? Do you understand what is beingasked and what you need to do?Think(2pts): What have they told you? What doesit mean? What more do you know or can youfigure out? What connections can you make? Doyou have a list of things you know, ideas to try &a plan for doing it?Do(4pts): Create and/or solve an equation (ifneeded) & show steps towards completing theproblem. Create an outline or map to organizeyour answer. Revise your plan if it doesn’t workthe first time.Answer(2 pts): Look back at your work andanswer – does it make sense, answer all of thequestions, and is reasonable (accurate)? When itis - Organize and report your work and final answer.
General
2 months ago
Which graph represents the function over the interval [−3,3] ?f(x)=⌈x+1⌉
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2 months ago
Triangle DEF is isosceles, where . Angle FDE is bisected by segment DG, creating angle GDE with a measure of 29°.
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2 months ago
A professor conducts an experiment that investigates the effects of a new statistics CD on student understanding. His one statistics class is used for the sample. He divides the roster into two halves and uses each half as a group. One group receives the CD and the other does not receive the CD. Each group consists of 10 students. Observations of student classroom engagement are rated by the professor, according to an engagement scale. How could this study be improved?A. Randomly assign the students to the two different groups.B. Repeat the study again, when a larger sample size can be derived.C. Use an instrument that measures student understanding.D. Ask another professor to make and rate observations, as well.
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2 months ago
The picture shows a feeding trough that is shaped like a right prism. (Picture is shown at the bottom!!) Plz, answer these three questions. I have my answers, I just want to double check!(a) Surface A and B are identical trapezoids. What are the lengths of the bases of the trapezoids? What is the height?(b) Surfaces A and B will be painted blue. What is the total area that will be painted blue?(c) The edges of the trapezoids need to be sanded. A piece of sandpaper advertises that it can sand up to 80 cm. Will one piece of sandpaper be enough to sand the edges of one trapezoid? Explain.Brainleist to the first and correct answer!
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2 months ago
Which best describes the structure outlined in the bridge.It is a parallelogram because it has one pair of opposite sides that is parallel.It is a parallelogram because it has exactly one pair of opposite sides that is congruent.It is a trapezoid because it has exactly one pair of opposite sides that is congruent.It is a trapezoid because it has exactly one pair of opposite sides that is parallel.
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2 months ago
Kristen owns 61 shares of Prince Waste Collection and 45 shares of Nar Heating/Cooling. Nar Heating/Cooling is worth $7.88 per share and Prince Waste Collection is worth $16.59 per share. If Kristen sells all of her stocks, how much money will she receive?
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2 months ago
Enter the range of values for x please.
General
2 months ago
Which expression is equal to sec x° multiplied by cot x°? hypotenuse ÷ adjacent adjacent ÷ hypotenuse opposite ÷ adjacent hypotenuse ÷ opposite
General
2 months ago
1. A farmer divided a field into 1-foot by 1-foot sections and tested soil samples from 32 randomly selected sections in the field. He finds that the mean pH level of the samples is 5.7 with a standard deviation of 0.26.A. Find the mean and standard deviation of the sampling distribution of all possible soil samples of size n = 32. Round to three decimal places.B. Construct a 95% confidence interval for the mean pH level of soil samples from every 1-foot by 1-foot section. Show your work. Even if you use technology, show the expression that is used to determine the margin of error for the interval. Interpret the interval in a complete sentence. C. The farmer tested soil samples from 34 randomly selected sections from another field. He found the mean pH level of those samples to be 6.1 with a standard deviation of 0.34. Construct a 95% confidence interval for the difference between the mean pH levels of all possible soil samples from both fields. Show your work. Even if you use technology, show the expression that is used to determine the margin of error for the interval. Interpret the interval in a complete sentence.Answer:
General
2 months ago
PLEASE HELP EASY ALGEBRA What is the sum of the geometric sequence 1, 3, 9, … if there are 10 terms? A: 29,524 B: 55,987 C: 87,381 D: 88,573
General
2 months ago
Mr. Clark claims that he has a coin that is weighted so that the probability of heads is 40%. To test this, his students flip the coin 200 times and calculate the relative frequency of heads and tails.Outcome Heads TailsRelative frequency 0.38 0.62Select from the drop-down menus to correctly complete each statement.The relative frequency of heads is40%.Mr. Clark's claim about the theoretical probability is likely to be.This means that the theoretical probability of tails is most likelyfor this coin.
General
2 months ago
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