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A line passes through the points (-6, 4) and (-2, 2). Which is the equation of the line?y=-5x+1y = 5x+7y = -2x – 8y= 2x + 16
General
2 months ago
Solve the following system of linear equations: 3x1+6x2+6x3 = -9 -2x1–3x2-3x3 = 3 If the system has infinitely many solutions, your answer may use expressions involving the parameters r, s, and t. O The system has at least one solution x1 = 0 x2 = 0 X3 = 0 O O
General
2 months ago
Find the projection of the vector A = î - 2ġ + k on the vector B = 4 i - 4ſ + 7k. 15. Given the vectors A = 2 i +3 ſ +6k and B = i +59 +3k. How much of vector B is along vector A?
General
2 months ago
You won a free ticket to see the latest Star Wars movie this Friday night (which you can costlessly resell for its face value of $15). Your favorite band is also performing on Friday and is your only alternative activity. Friday is your last chance to see either the movie or the band. Tickets to see your favorite band cost $30, and on any given day, you would be willing to pay as much as $50 for a ticket. Based on this information, what is your opportunity cost of going to see the Star Wars movie on Friday?
General
2 months ago
How many solutions exist for given equation?1/2)x+12=4x-1
General
2 months ago
A tank initially contains 60 gallons of brine, with 30 pounds of salt in solution. Pure water runs into the tank at 3 gallons per minute and the well-stirred solution runs out at the same rate. How long will it be until there are 23 pounds of salt in the tank? Answer: the amount of time until 23 pounds of salt remain in the tank is minutes.
General
2 months ago
The scores of an eighth-grade math test have a normal distribution with a mean u = 83 and a standard deviation o = 5. IfDin's test score was 92, which expression would she write to find the Z-score of her test score?92-83O2- 835O z: 83-92O z- 92-83092
General
2 months ago
A line passes through the points (-6, 4) and (-2, 2). Which is the equation of the line? y=-3x+1y=2x+7y=-2x – 8y= 2x + 16
General
2 months ago
What expression is equivalent to...
General
2 months ago
Prove the following statement.The square of any odd integer has the form 8m+1 for some integer m.
General
2 months ago
Write an inequality that represents the verbal expression all real numbers less than 74
General
2 months ago
A bus driver pays all tolls, using only nickels and dimes, by throwing one coin at a time into the mechanical toll collector. a) Find a recurrence relation for the number of different ways the bus driver can pay a toll of n cents (where the order in which the coins are used matters). b) In how many different ways can the driver pay a toll of 45 cents.
General
2 months ago
The manager of music is giving away 255 music downloads at its grand opening event.If the manger gives the greatest possible number of music downloads to each of the first 75 customers, how many people will receive 1 music download each?
General
2 months ago
An airplane travels 290 km between Austin and Dallas in 1 h 15 min. What is it’s average speed?
General
2 months ago
Alex has saved $3. He doubles the amount he saves each week. Does this represent an exponential function? if so why and if not why ? please bexplain
General
2 months ago
A movie theater earned $3,600 in sold-out ticket sales for the premiere of a new movie. VIP tickets cost $20 per person and regular admission tickets cost $8 per person. If the number of regular admission tickets sold was twice the number of VIP tickets sold, what was the total number of seats in the theater?Select one:A. 225B. 175C. 150D. 300
General
2 months ago
(02.05 MC) Two similar triangles are shown on the coordinate grid: A coordinate grid is shown from positive 6 to negative 6 on the x-axis and from positive 6 to negative 6 on the y-axis. A triangle ABC is shown with vertex A on ordered pair negative 2, negative 1, vertex B on ordered pair 0, 0, and vertex C on ordered pair 1, negative 3. A triangle A prime B prime C prime is also shown with vertex A prime on ordered pair negative 4, 2 , vertex B prime on ordered pair 0, 0 and vertex C prime on ordered pair 2, 6. Which set of transformations has been performed on triangle ABC to form triangle A′B′C′? (5 points) Dilation by a scale factor of 4 followed by reflection about the x-axis Dilation by a scale factor of 2 followed by reflection about the x-axis Dilation by a scale factor of 4 followed by reflection about the y-axis Dilation by a scale factor of 2 followed by reflection about the y-axis
General
2 months ago
Please help soon! How can the graph of f(x) = ∛x be transformed to represent the function g(x) = ∛-3? Translate the graph of f(x) ___ 3 units. Selective options: right, left, up, and down. The point ____ is on the graph of g(x).Selective options: (-8,-1), (-1,-2), (2,-1), and (8,-1).
General
2 months ago
A college chemistry instructor thinks the use of embedded tutors will improve the success rate in introductory chemistry courses. The passing rate for introductory chemistry is 6565%. During one semester, 200200 students were enrolled in introductory chemistry courses with an embedded tutor. Of these 200200 students, 147147 passed the course. The instructor carried out a hypothesis test and found that the observed value of the test statistic was 2.522.52. The p-value associated with this test statistic is 0.00590.0059. Explain the meaning of the p-value in this context. Based on this result, should the instructor believe the success rate has improved?
General
2 months ago
(Based on Q14) The International Coffee Association has reported the mean daily coffee consumption for U.S. residents as 1.65 cups. Assume that a sample of 38 people from a North Carolina city consumed a mean of 1.84 cups of coffee per day, with a standard deviation of 0.85 cups. In a two-tail test at the 0.05 level, could the residents of this city be said to be significantly different from their counterparts across the nation?
General
2 months ago
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