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A group of men and women were given a maze puzzle. The time it took each person to solve the puzzle is recorded in the table.The sample size of men isA.19B. 34C. 53and the sample size of women isA. 19B. 34C. 53The mean time taken byA. WomenB. Mento solve the puzzle is less than that taken byA. WomenB. Men
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7 months ago
Alexis invests $475 in a bank account that earns 1.25% interest compounded annually. Which function models the growth of her investment over x years?
General
7 months ago
Betty picks 4 random marbles from the bowl containing 3 white, 4 yellow, and 5 blue marbles The probability that exactly 1 of the 4 marbles drawn is blue is [blank]. The probability that atleast 1 of the 4 marbles drawn is white is [blank]
General
7 months ago
The vertex of the parabola below is at the point (4, -1). Which of the equations below could be the one for this parabola?
General
7 months ago
What is the value of the discriminant, b2 − 4ac, for the quadratic equation 0 = x2 − 4x + 5, and what does it mean about the number of real solutions the equation has?
General
7 months ago
What is the solution of 3x+y=9 and 3x minus 5y=15
General
7 months ago
Raj and Aditi like to play chess against each other. Aditi has won 12 of the 20 games so far. They decide to play more games. How many more games will Aditi have to win to have a 70% winning record? 12 + x = 0.70(20 + x) x = ≈ 6.67 She will have to win 7 more games to have a 70% winning record. How many more games will Aditi have to win to have an 80% winning record? The linear equation that models this is . Aditi would have to win more games to have an 80% winning record.
General
7 months ago
to Bill customers of water usage one city converts the number of gallons used into units the relationship is represented by the equation g equals 748 you where G is the total number of gallons of water used and you is the number of units
General
7 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
7 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
7 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
7 months ago
Which expression is equal to sec x° multiplied by cot x°? hypotenuse ÷ adjacent adjacent ÷ hypotenuse opposite ÷ adjacent hypotenuse ÷ opposite
General
7 months ago
Enter the range of values for x please.
General
7 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?
General
7 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.
General
7 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!
General
7 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.
General
7 months ago
Triangle DEF is isosceles, where . Angle FDE is bisected by segment DG, creating angle GDE with a measure of 29°.
General
7 months ago
In mathematical terms, why it is necessary for a pilot to continue to change the direction of an airplane when traveling to its destination?
General
7 months ago
What is the product of 2x + y and 5x – y + 3?
General
7 months ago
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