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MATH SOLVE
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The following function represents the value of a motorcycle, in dollars, after x years: f(x) = 19,000(0.91)x What does 0.91 represent? A.The present value of the motorcycle B.The value of the motorcycle after x years C.The decrease in the value of the motorcycle, which is 9% D.The decrease in the value of the motorcycle, which is 91%
General
4 months ago
I need some major help with this proof.
General
4 months ago
Prove that if V and W are both subspaces of the vector space U, then their intersection is also a subspace of U. Please write a formal proof and write legibly! Show all steps. Linear Algebra. Thanks.
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4 months ago
A group of friends go to the movies. The function h(x) represents the amount of money spent, where x is the number of friends at the movies. Does a possible solution of (6.5, $95.25) make sense for this function? Explain your answer. Yes. The input and output are both possible. No. The input is not possible. No. The output is not possible. No. Neither the input nor output is possible.
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4 months ago
Refer to the accompanying data display that results from a sample of airport data speeds in Mbps. Complete parts (a) through (c) below. TInterval (13.046,22.15) x overbarequals17.598 Sxequals16.01712719 nequals50 a. Express the confidence interval in the format that uses the "less than" symbol. Given that the original listed data use one decimal place, round the confidence interval limits accordingly. 13.05 Mbpsless thanmuless than 22.15 Mbps (Round to two decimal places as needed.) b. Identify the best point estimate of mu and the margin of error.
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4 months ago
7HELP________________
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4 months ago
3HELP__________________
General
4 months ago
Researchers report that on average freshman who live on campus gain 15 pounds during their first year in college. You survey 10 of your friends and find that the average weight gain the first year was 16.2 lbs (s.d. = 2.6). How does weight gain among your friends compare to the national average? Please round to three decimal places. Compute the test statistic.
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4 months ago
Rewrite the definition “Linear angles are supplementary” in biconditional form The angles are linear angles if and only if they are supplementary. If the angles are linear angles only if they are supplementary. If the angles are linear angles, then they are supplementary. If and only if the angles are linear angles, if and only if they are supplementary.
General
4 months ago
Seven customers enter a clothing store and are observed to determine if they will make a purchase. The store owner states that there is a 75% chance of a customer making a purchase. The random variable x represents a customer making a purchase. Calculate the mean, variance and standard deviation for the number of customers that make a purchase.
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4 months ago
a restaurant has a 50 gallon fish tank, the water in the tank evaporates at a rate of -2.5 a week, but the owner adds 3 gallons of water to the tank every 10 days , after the owner added 3 gallons today there were 44 gallons of water in the tank , how much water will be in the tank when the owner adds 3 gallons 70 days from today
General
4 months ago
2(x - 3) + 3 = 6x - 5.
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4 months ago
a town park has 2 biking trails. Marsh Trail is 5 and three over ten miles long. Woodland trail is 2 and 4 over 5 miles long. How much longer is Marsh Trail than Woodland trail?
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4 months ago
Point (2, -4) is reflected across the x-axis. What arethe coordinates of its image?
General
4 months ago
An electrician earns 100 dollars for a project installing light fixtures. She must pay for the light fixtures herself and they cost 2 dollars and 50 cents each at the hardware store. Create an equation to represent her profit from the project. Let x represent the number of light fixtures and y represent her total profit (the amount of money she has left over after paying for the light fixtures).
General
4 months ago
The probability that a student has a Visa card (event V) is .73. The probability that a student has a MasterCard (event M) is .14. The probability that a student has both cards is .03. (a) Find the probability that a student has either a Visa card or a MasterCard. (Round your answer to 2 decimal places.)
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4 months ago
What is the algebraic expression for the following word phrase: the sum of 3 and 4x? 2. What is the algebraic expression for the following word phrase: the quotient of 8 and the difference of x and y? 3. What is the algebraic expression for the following word phrase: the quotient of x and 2y? 4. Which word phrase can you use to represent the algebraic expression 4m?
General
4 months ago
Half of a set of the parts are manufactured by machine A and half by machine B. Ten percent of all the parts are defective. Five percent of the parts manufactured on machine A are defective. Find the probability that a part was manufactured on machine A, given that the part is defective. (Round your answer to 4 decimal places.)
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4 months ago
Recently, a case of food poisoning was traced to a particular restaurant chain. The source was identified and corrective actions were taken to make sure that the food poisoning would not reoccur. Despite the response from the restaurant chain, many consumers refused to visit the restaurant for some time after the event. A survey was conducted three months after the food poisoning occurred, with a sample of 319 patrons contacted. Of the 319 contacted, 29 indicated that they would not go back to the restaurant because of the potential for food poisoning. What sample size would be needed in order to be 99 percent confident that the sample proportion is within .02 of rho, the true proportion of customers who refuse to go back to the restaurant?
General
4 months ago
. In a class of all boys, 18 boys like to play chess, 23 like to play soccer, 21 like biking and 17 like hiking. The number of those who like to play both chess and soccer is 9. We also know that 7 boys like chess and biking, 6 boys like chess and hiking, 12 like soccer and biking, 9 boys like soccer and hiking, and finally 12 boys like biking and hiking. There are 4 boys who like chess, soccer, and biking, 3 who like chess, soccer, and hiking, 5 who like chess, biking, and hiking, and 7 who like soccer, biking, and hiking, Finally there are 3 boys who like all four activities. In addition we know that everybody likes at least one of these activities. How many boys are there in the class
General
4 months ago
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