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MATH SOLVE
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The marginal benefit Kyra gets from eating a second sandwich is A. the total benefit Kyra gets from eating three sandwiches minus the total benefit she gets from eating two sandwiches. B. the total benefit Kyra gets from eating two sandwiches minus the total benefit she gets from eating one sandwich. C. less than the marginal cost of eating the second sandwich since she chose to eat the second sandwich. D. the same as the total benefit she gets from eating two sandwiches.
General
4 months ago
What is the x-intercept of the graph: 2x + 4y = -10
General
4 months ago
Distance between (2,10) and (-1,10)
General
4 months ago
Consider the parametric curve x = 2t^(3)-3t^(2)+2 and y = t^(3)-12t,-pi leq t leq pi . (a) Find the values of t (if any) where the slope of the line tangent to the curve is 0. (b) Find the values of t (if any) where the line tangent to the curve is vertical. (c) If the curve represents the motion of a particle, describe the general direction of the particle when t = 3. Be sure to justify your answer.
General
4 months ago
A bank offers auto loans to qualified customers. The amount of the loans are normally distributed and have a known population standard deviation of 4 thousand dollars and an unknown population mean. A random sample of 22 loans is taken and gives a sample mean of 42 thousand dollars. Find the margin of error for the confidence interval for the population mean with a 90% confidence level.
General
4 months ago
A realtor uses a lock box to store the keys to a house that is for sale. The access code for the lock box consists of sixsix digits. The first digit cannot be 22 and the last digit must be oddodd. How many different codes are available? (Note that 0 is considered an even number.)
General
4 months ago
A population of 900 voters contains 369 Republicans, 468 Democrats, and 63 independents and members of other parties. A simple random sample of 90 voters will be drawn from this population.The expected value of the number of Republicans in the sample is? (Q)____________The chance the sample contains only Republicans and Democrats is? (Q)___________Consider repeatedly drawing simple random samples of size 90 from the population (taking each simple random sample from the full population of 900 voters). The expected value of the number of simple random samples of size 90 that must be drawn until (and including) the first sample that contains at least one voter who is neither a Democrat nor a Republican is? (Q)_____________
General
4 months ago
an architect designs an archway by resting the two bases of an arch on the floor. the shape of the arch can be modeled by the graph of the function f in the CY plane above. if f is defined by f(x)= -2x^2 +20 x where x is in feet what is the value of the distance d in feet between the two base of an arch? A. 2B. 10C. 20 D. 40
General
4 months ago
Which graph could represent a car that begins by increasing its speed, then travels at a constant speed, and then decreases its speed, as time increases? A graph with time (minutes) on the horizontal axis and speed (miles per minute) on the vertical axis. Both axes are unnumbered. The speed begins at 0, goes up at first, is steady for a while, and then goes down over time. A graph with time (minutes) on the horizontal axis and speed (miles per minute) on the vertical axis. Both axes are unnumbered. The speed begins in the middle of the vertical axis, goes down at first, is steady for a while, and then goes up over time. A graph with time (minutes) on the horizontal axis and speed (miles per minute) on the vertical axis. Both axes are unnumbered. The speed begins at 0, goes up at first, goes down for a while, and then is steady over time. A graph with time (minutes) on the horizontal axis and speed (miles per minute) on the vertical axis. Both axes are unnumbered. The speed begins in the middle of the vertical axis, goes down at first, goes up for a while, and then is steady over time. Mark this and return
General
4 months ago
A technician randomly sampled repair logs for computers at a university. He wanted to find out how many times the computers were repaired. The proportion of computers that were repaired more than three times in the last two years was 0.24, with a margin of error of 0.03. Construct a confidence interval for the proportion of university computers that were repaired more than three times in the last two years.
General
4 months ago
find two numbers whose arithmetic mean is 10 and geometric mean is 8
General
4 months ago
The Millers must make a 70-mile Thanksgiving trip to visit their grandparents. Pat Miller believes in driving at a steady rate of 50 miles per hour.(a) How much time will it take Pat to make the trip?(b) How many miles will the Millers travel in 18 minutes?(c) Write an expression for the number of miles they will cover in t minutes of driving. (d) After t minutes of driving, how many miles remain to be covered?
General
4 months ago
13 The taxi fare in a city is such that Rs:50is fixed amount and Rs: 16 perkm is chargedTaking the distance covered aix km andtotal fare as Rsiy write lineur equationin n andy
General
4 months ago
For the following problems, fill in the blanks with rational numbers. Show work proving that your numbers create true statements. (Do not use -1 and 1)
General
4 months ago
What is different between solving inequalities and absolute value inequalities?
General
4 months ago
Find the coordinates of P so that P partitions AB in the ratio 2/5 with A(-8,-2) and B(6,19)
General
4 months ago
In this sequence, term number 1 has a value of 6,term number 2 has a value of 12, term number 3 hasa value of 22, and so on:6, 12, 22, 36, 54, ...If n represents the term number, demonstrate thatthe rule 2n + 4 will generate the sequence.
General
4 months ago
Question 2 (20 points)Write an equation for the parabola whose vertex is at (-8, 4) and passes through (-6, -2).
General
4 months ago
A jet left the airport and flew south. A passenger plane left one hour later flying 52mph faster in an effort to catch up to it. After seven hours the passenger plane finally caught up. Find the jet’s average speed
General
4 months ago
Researches notice a grey whale cruising at a depth of 233 feet below sea level. It rises 73 feet and then comes up another 40 feet to feed. At what depth is the grey whale feeding. I will give brainliest
General
4 months ago
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