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2(y-4)+5=3(y+2) for y
General
4 months ago
Given the formula for an arithmetic sequence f(9) = f(8) + 5 written using a recursive formula, write the sequence using an arithmetic formula. f(9) = f(1) + 5 f(9) = f(1) + 30 f(9) = f(1) + 35 f(9) = f(1) + 40
General
4 months ago
Maddie had three times as many slimes as makayla. Together they have 64 slimes . How many slimes does Maddie have
General
4 months ago
-42 = 6(1 + 5a) + 8(4a - 6)
General
4 months ago
1. For the Summer R&B/Soul Festival, there is one price for students, one for adults, and another for senior citizens. The Jackson family bought 3 student tickets and 2 adult tickets for $104. The Williams family bought 5 student tickets, 1 adult ticket, and 2 senior citizen tickets for $155. The Mullins family bought 2 of each for $126. a. Write a system of equations that can be used to find the cost of each ticket. b. Solve the system by elimination to find the cost of each ticket.
General
4 months ago
A researcher compares the effectiveness of two different instructional methods for teaching anatomy. A sample of 175 students using Method 1 produces a testing average of 89.6. A sample of 177 students using Method 2 produces a testing average of 68.8. Assume the standard deviation is known to be 17.56 for Method 1 and 5.07 for Method 2. Determine the 98% confidence interval for the true difference between testing averages for students using Method 1 and students using Method 2.
General
4 months ago
One tank contains 40 gallons of pure water. Brine with 3 lb / gal of flute salt in the size of 2 gal / min and the mixture escapes at a rate of 3 gal / min.A.-Calculate the amount of salt in the tank when it is only left in the 20 gallons.B.-How much is the maximum amount of salt in the deposit?
General
4 months ago
Please ExplainGiven the formula for an arithmetic sequence f(6) = f(5) + 3 written using a recursive formula, write the sequence using an arithmetic formula. f(6) = f(1) + 3 f(6) = f(1) + 12 f(6) = f(1) + 15 f(6) = f(1) + 18
General
4 months ago
To win the game, a place kicker must kick a football from a point 45 m (49.212 yd) from the goal, and the ball must clear the crossbar, which is 3.05 m high. When kicked, the ball leaves the ground with a speed of 24 m/s at an angle of 32.6 ◦ from the horizontal. The acceleration of gravity is 9.8 m/s 2 . By how much vertical distance does the ball clear the crossbar? Answer in units of m.
General
4 months ago
There are three local factories that produce radios. Each radio produced at factory A is defective withprobability .02, each one produced at factory B is defective with probability .01, and each one producedat factory C is defective with probability .05. Suppose you purchase two radios that were produced atthe same factory, which is equally likely to have been any factory. Given the first radio that you checkis defective, find the probability that the other one is also defective.
General
4 months ago
two coplanar lines that are perpendicular to the same line are parallel. a) always b) sometimes c) never
General
4 months ago
solve the equation 3p (3p - 8) - 8 = 9p ( p - 3 + 4
General
4 months ago
Gandalf the Grey started in the Forest of Mirkwood at a point with coordinates (2,1)(2,1) and arrived in the Iron Hills at the point with coordinates (3,6)(3,6). If he began walking in the direction of the vector v¯¯¯=5i+1jv¯=5i+1j and changed direction only once, when he turned at a right angle, at what point did he make the turn?
General
4 months ago
Gribbles are small, pale white, marine worms that bore through wood. While sometimes considered a pest since they can wreck wooden docks and piers, they are now being studied to determine whether the enzyme they secrete will allow us to turn inedible wood and plant waste into biofuel.1 A sample of 50 gribbles finds an average length of 3.1 mm with a standard deviation of 0.72. Give a best estimate for the length of gribbles, a margin of error for this estimate (with 95% confidence), and a 95% confidence interval. Round your answer for the point estimate to one decimal place, and your answers for the margin of error and the confidence interval to two decimal places. point estimate = Enter your answer; point estimate
General
4 months ago
Surfer Tom is going to sell his custom surfboards. He was able to rent a garage from his Uncle Ed for $1,200 a month, which includes utilities. He anticipates being able to sell his boards for $500 each. The raw materials (resin, foam, etc.) will cost an average of $200 for each board, and he plans to spend $60 per board to advertise them to local surfers. Assuming these are all the costs and revenues, what will be Surfer Tom’s monthly break-even point in units? Does this seem like a reasonable amount for him to produce and sell every month? Please show your calculations.
General
4 months ago
About 77% of young adults think they can achieve the American dream. Determine if the following statements are true or false, and explain your reasoning.(a) The distribution of sample proportions of young Americans who think they can achieve the American dream in samples of size 20 is left skewed.(b) The distribution of sample proportions of young Americans who think they can achieve the American dream in random samples of size 40 is approximately normal since (n) equal or bigger then 30.(c) A random sample of 60 young Americans where 85% think they can achieve the American dream would be considered unusual.(d) A random sample of 120 young Americans where 85% think they can achieve the American dream would be considered unusual.
General
4 months ago
The king's ship sank with 8 gold bars aboard. The king paid Captain Nemo 4/5 of one bar for finding the gold. The captain gave 1/2 of his gold to charity. What fraction of a bar went to charity?
General
4 months ago
Can Somebody Please HelpDrag each image to the correct location on the graph. Each image can be used more than once, but not all images will be used.The list below shows the quantity of items purchased by customers at a particular checkout counter of a supermarket.13, 6, 5, 9, 12, 14, 18, 4, 13, 12, 4, 3, 11, 14Create a histogram that correctly displays the data.
General
4 months ago
20 pts and a mark for right answer!!! A chef is going to use a mixture of two brands of Italian dressing. The first brand contains 9 % vinegar, and the second brand contains 13 % vinegar. The chef wants to make 200 milliliters of a dressing that is 12 % vinegar. How much of each brand should she use?
General
4 months ago
The graph below shows the number of houses sold over x days. What is the average rate of change from day 2 to day 10? -4/3 -3/4 6 8
General
4 months ago
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