Mathematics

Tell whether x and y show direct variation1. y - x = 42. x - y = 03. 8 = xy4. What expression represents the sum of (2x-5y) and (x+y)?5. What expression is equivalent to (7x-5) - (3x-2)?
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At 10 percent interest, how long does it take to quadruple your money?Group of answer choices15.36 years14.33 years15.11 years14.55 years15.56 years
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(5x+17)+(2x+50) What does x equal?
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23Select the correct answer.What happens to an electric current produced from an electromagnet when the direction of the magnetic field changes?A.The current stops.B. The current increases.C.The direction of the electric current changes.D.The current decreases.E.The direction of the electric current stays the same.ResetNext
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In AABC, which ratio equals cos C?
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What are some solutions to nonresponse? Select all that apply. A. reduce undercoverage B. use stratified sampling C. use convenience sampling D. change wording of questions E. offer rewards and incentives F. reduce interview error G. attempt callbacks H. use cluster sampling
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If five 4 liter bottles of soda are split evenly among 40 people how many liters of soda will each person get?
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Complete the proof of the Pythagorean theorem.Given: ABC is a right triangle, with a right angle at CProve: A+B =C Answer:Statement 1.ABC is a right triangle, with a right angle at C 2.Draw an altitude from point C to line AB3.CDB and CDA are right angles.4. BCA BDC5.B B 6. ?7. [tex]\frac{a}{x} = \frac{c}{a}[/tex]8. a = cx 9.CDA BCA 10.A A 11. ?12. [tex]\frac{b}{y} = \frac{c}{b}[/tex]13. b = cy14. a + b = cx + cy15. ?16. x + y = c17.a + b = c Reason 1. Given2. From a point not on a line, exactly one perpendicular can be drawn through the point to the line.3. Definition of altitude4. All right angles are congruent.5. ?6. AA Similarity Postulate7. ?8. ?9. ?10. ?11.AA similarity Postulate12. ?13. ?14. ?15. Distributive Property16. ?17. ?PLEASE FILL IN ALL THE QUESTION MARKS :)
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Jack and Rodger both produce Sandwiches and Pies, and they both have 300 minutes of time available. It takes Jack 1 minutes to make a Sandwich, and 7 minutes to make a Pie. It takes Rodger 7 minutes to make a Sandwich and 1 minutes to make a Pie. What is the largest number of Sandwiches that Jack would be willing to trade away to get 4 Pies from Rodger
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Whats 3 5/8 as a fraction
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please could someone help me?
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Jan has a 12 ounce milkshake. Four ounces in the milkshakes are vanilla, and the rest is chocolate. What equivalent fractions that represent the fraction of the milkshake that is vanilla
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Find the balance of $7,000 deposited at 4% compounded semi-annually for 2 years
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In humans, tongue rolling is a dominant trait, those with the recessive condition cannot roll their tongues. Dave can roll his tongue, but his father could not. He is married to Nancy, who can roll her tongue, but her mother could not. What is the probability that their first born child will be able to roll his tongue
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Write an expression that is equivalent to 7-3(4-2x)-10x
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You and three friends spend $35 on tickets at the movies.Write and solve an equation to find the price of one ticket
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Which equality represents a proportional relationship?A) -2.8/-2 = 4.2/3B) 2.6/1.3 = 4.2/2C) 2/5 = 8/9D) 3/4 = 7/12
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1.5 3.9 6.3 8.7 what is the sequence term
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Graph the function y=-2x+6
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Type in true or false statement... Help ASAP please
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Triangles PQR and XYZ are similar. What is the length of XZ? 6 5.25 3.5 2.57
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Perform the indicated operation and simplify the result. 6a2/5b2 * 45b3/18a3 = ? answers:a)3ab b)(3b)/a c)3
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quadratic function of 13 and 2
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Do you tailgate the car in front of you? About 35% of all drivers will tailgate before passing, thinking they can make the car in front of them go faster. Suppose that you are driving a considerable distance on a two-lane highway and are passed by 12 vehicles.(a) Let r be the number of vehicles that tailgate before passing. Make a histogram showing the probability distribution of r for r = 0 through r = 12.(b) Compute the expected number of vehicles out of 12 that will tailgate. (Round your answer to two decimal places.)vehicles(c) Compute the standard deviation of this distribution. (Round your answer to two decimal places.)vehicles
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