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Kayla and her best friend Christina go shopping. The function p(t) = 2x4 + 6x3 − 3x2 + 24 represents how much money each girl spent based on the number of hours they were shopping. If Kayla and Christina each go shopping for 2 hours, how much money did they spend together?
General
4 months ago
Fortune is distributed as follows : the 1st $5 million to the dog,1/2 the remainder to the teacher,$50 million to hospital,of the remaining 50% to wife,40% to daughter,9% to lawyer,1% to son... son is getting $10,000-How much was the fortune?- who gets the most money and how much?-
General
4 months ago
An aircraft flew a distance of from Amsterdam to Cairo at an average speed of 820 km/h and returned non-stop by the same route at an average speed of 656 km/h. Given that the aircraft took 1 hour more for the return trip, calculate x
General
4 months ago
What are the values of cos α and tan α, if: sinα= 40/41
General
4 months ago
Solve (-2x-1)(9x+2) Solve and show work
General
4 months ago
In circle O, ST is a diameter.Circle O is shown. Line segment S T is a diameter. Line segments R O and U O are radii. Angles R O U and U O T are congruent. The measure of arc R S is (2 x + 8) degrees, the measure of arc R U is (3 x minus 14) degrees, and the measure of arc U T is (3 x minus 14) degrees.What must be the value of x?22.025.025.437.2
General
4 months ago
In △POK PK = KO = 11, m∠K = 145º. Find altitude PH.
General
4 months ago
Everyday an automobile factory assembles 46 more cars than trucks.Let ‘t’ represent the number of trucks assembled and ‘c’ represent the number of cars assembled Find the value of ‘c’ when ‘t’ = 9
General
4 months ago
John had 28 color pencils. He was given a new set of colour pencils which contained twice as much he already had. Jonh gave 11 coloured pencils to each of his 3 sisters. How many colored pencils did he have now ?
General
4 months ago
Question 20) write a linear function f with f (0) = 7 and f (3) = Question 21) write a linear function f with f (4) = f (0) = -2 Question 22) write a linear function with f with f (5) = -1 and f (0) = -5
General
4 months ago
In a triangle ABC, measure of angle B is 90 degrees. AB is 3x-2 units and BC is x+3. If the area of the triangle is 17 sq cm, form an equation in terms of x and solve it.
General
4 months ago
Thomas borrowed 4800$ to buy a new car. He will be paying 96$ a each month for the next 60 months. Find the simple interest rate for his car loan.
General
4 months ago
The probability of rolling a fair die and not getting an outcome less than 3 is
General
4 months ago
Please help! :) Need answer fast!
General
4 months ago
For a scientific Experiment, A physicist must make sure that the temperature of a metal at 0°C gets to no colder than -80°C. the physicist changes the metals temperature at a steady rate of -4°C per hour. Let t represent the temperature in degrees Celsius. Write an inequality. use the fact that the rate of change in temperature times the number of hours equals the final temperature.
General
4 months ago
George has 1/3 pan of brownies.He eats 1/4 of them.What fraction did George eat?
General
4 months ago
A trucking firm has a large inventory of spare parts that have been in storage for a long time. It knowsthat some proportion of these spare parts will have deteriorated to the point where they are no longerusable. In order to estimate this proportion, the firm tests 75 parts, and finds that 0.25 of them are notusable. Find the 95% confidence interval for the population proportion of parts that are not usable. a. 0.25(1 0.25) 0.25(1 0.25) C 0.25 1.96 p 0.25 1.96 0.95 75 75 b. 0.25(1 0.25) 0.25(1 0.25) C 0.25 1.96 p 0.25 1.96 0.95 75 75c. 0.25(1 0.25) 0.25(1 0.25) C 0.25 1.645 p 0.25 1.645 0.95 75 75 d. 0.25(1 0.25) 0.25(1 0.25) C 0.25 1.645 p 0.25 1.645 0.95 75 75
General
4 months ago
Suppose that a manager is interested in estimating the average amount of money customers spend in her store. After sampling 36 transactions at random, she found that the average amount spent was $35.25. She then computed a 95% confidence interval to be between $31.84 and $38.66. Which statement gives a valid interpretation of the interval? The store manager is 95% confident that the average amount spent by the 36 sampled customers is between S31.84 and $38.66. There is a 95% chance that the mean amount spent by all customers is between $31.84 and $38.66. O There is a 95% chance that a randomly selected customer will spend between $31.84 and $38.66. The store manager is 95% confident that the average amount spent by all customers is between $31.84 and S3866
General
4 months ago
In a survey of 269 college students, it is found that69 like brussels sprouts,90 like broccoli,59 like cauliflower,28 like both Brussels sprouts and broccoli,20 like both Brussels sprouts and cauliflower,24 like both broccoli and cauliflower, and10 of the students like all three vegetables.a) How many of the 269 college students do not like any of these three vegetables?b) How many like broccoli only?c) How many like broccoli AND cauliflower but not Brussels sprouts?d) How many like neither Brussels sprouts nor cauliflower?
General
4 months ago
You read that a study is planned for which a test of hypothesis will be done at significance level α = 0.10. Statisticians have calculated that for a certain effect size, the power is 0.7. What are the probabilities of Type I and Type II errors for this test?
General
4 months ago
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