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A school, hospital, and a supermarket are located at the vertices of a right triangle formed by three highways. The school and hospital are 14.7 miles apart. The distance between the school and the supermarket is 8.82 miles, and the distance between the hospital and the supermarket is 11.76 miles. A service road will be constructed from the main entrance of the supermarket to the highway that connects the school and hospital. What is the shortest possible length for the service road? Round to the nearest tenth.
General
4 months ago
Which is an equation PLS HELP MEEEE
General
4 months ago
Which of the following represents the zeros of f(x) = x3 − 4x2 − 5x + 20?
General
4 months ago
HELP ME ASAP!(6.15x+0.24y)÷1.5+5.9x−1.6ysimplify it!
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4 months ago
Can you please find the mean median mode and range for these two tables?( separate answers for the two)
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4 months ago
What is the sum of the first 100 terms of the sequence 4,9,14,19, ...?
General
4 months ago
what is f(5) for the function -2x^2+2x-3
General
4 months ago
Describe three different ways to solve a quadratic equation. Describe the strengths and limitations of each method, and explain how you would decide which one to use to solve a particular problem.
General
4 months ago
a parabola is the set of all points that:
General
4 months ago
Help PLZZZ!!!Select the correct answer from the drop-down menu. The roots of the quadratic equation_________ are x = 2 ± i. optionsa. x^2-4x-5=0b. x^2+4x+5=0c. x^2-4x+5=0d. x^2+4x-5=0
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
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
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
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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)_____________
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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 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
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
Distance between (2,10) and (-1,10)
General
4 months ago
What is the x-intercept of the graph: 2x + 4y = -10
General
4 months ago
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
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