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A major Blu-ray rental chain is considering opening a new store in an area that currently does not have any such stores. The chain will open if there is evidence that more than 5,000 of the 20,000 households in the area are equipped with Blu-ray players. It conducts a telephone poll of 300 randomly selected households in the area and finds that 96 have Blu-ray players. The decision on the hypothesis test using a 5% level of significance is (A) 2.80. (B) 2.60. (C) 1.30. (D) 1.94.
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2 months ago
A printing business employs 35 people. The employer offers the employees an insurance package that costs the company $2,170. The employer has been investigating various plans. A new plan would cost $59 per employee plus a one-time $70 sign up fee (not per employee). Is the new plan a better deal?
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2 months ago
HELP PLEASE ASAPselect the system of equations that represents this situation use c to represent the cost of a cup of coffee and w to represent the cost of a bottle of water7 cups of coffee and 2 bottles of water cost $16 8 cups of coffee and 3 bottles of water cost$19A) c+w=20 7c+2w=16B) 7c+8w=16 2c+3w=19C) 7c+2w=16 8c+3w=19D) 2+7w=16 3c+8w=19
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2 months ago
Harry is making bouquets of balloons. He makes the bouquets so that 2 out of every 5 balloons are red. Which equation correctly compares the number of balloons he uses, x, to the number of red balloons, y? A. y=2/3 x B. y=2/5 x C. y=3/2 x D. y=5/2 x***will give brainliest answer***
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2 months ago
A rectangular garden must have a perimeter of 145 feet and an area of at least 1100 square feet. Describe the possible lengths of the garden. Round your answers to the nearest foot. The approximate length of the garden is at least feet and at most feet.
General
2 months ago
Jed is an electrician. Jed and his wife are accrual basis taxpayers and file a joint return. Jed wired a new house for Alison and billed her $15,000. Alison paid Jed $10,000 and refused to pay the remainder of the bill, claiming the fee to be exorbitant. Jed took Alison to Small Claims Court for the unpaid amount and was awarded a $2,000 judgement. Jed was able to collect the judgement but not the remainder of the bill from Alison. What amount of loss may Jed deduct in the current year?
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2 months ago
You are planning a May camping trip to Denali National Park in Alaska and want to make sure your sleeping bag is warm enough. The average low temperature in the park for May follows a normal distribution with a mean of 32°F and a standard deviation of 8°F. One sleeping bag you are considering advertises that it is good for temperatures down to 25°F. What is the probability that this bag will be warm enough on a randomly selected May night at the park?A 0.1894 B 0.3106C 0.8106D 0.8800
General
2 months ago
Two trains A and B are 240 miles apart. Both start at the same time and travel toward each other. They meet 3 hours later. The speed of train A is 20 miles faster than train B. Find the speed of each train. (SHOW WORK)
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2 months ago
Fatima evaluated the expression when m = -2 and n = 4. Her work is shown below.What was Fatima’s error?-She subtracted the exponents incorrectly when simplifying the expression.-She substituted the wrong values for the variables.-She applied the exponent -2 to 4(-2) instead of applying the exponent to just -2.-She found an incorrect value for -8^-2 since the value should be negative.
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2 months ago
The number of customers waiting for gift-wrap service at a department store is an rv X with possible values 0, 1, 2, 3, 4 and corresponding probabilities 0.1, 0.2, 0.3, 0.25, 0.15. A randomly selected customer will have 1, 2, or 3 packages for wrapping with probabilities 0.55, 0.35, and 0.1, respectively. Let Y = the total number of packages to be wrapped for the customers waiting in line (assume that the number of packages submitted by one customer is independent of the number submitted by any other customer). (a) Determine P(X = 3, Y = 3), i.e., p(3,3). (Round your answer to four decimal places.) P(X = 3, Y = 3) = Correct: Your answer is correct. .0416 (b) Determine p(4,11). (Round your answer to four decimal places.) p(4,11) = ?
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2 months ago
The Magic Carpet charges $90 for installation and $9 per square yard of carpeting. The Flying Carpet's installation price is $50 but the store charges $13 for each square yard. What equation can be used to find at what number of square yards of carpeting will the cost, including installation, be the same for both stores?
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2 months ago
The length of a flagpole is 12cm. A student stands 50 m from the foot of the flagpole. What is the measure of the angle of elevation from the ground to the top of the flagpole
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2 months ago
Steve is a fan of the music of Paul Simon and Art Garfunkel. In his collection of 25 compact discs, he has the following:5 on which both Simon and Garfunkel sing7 on which Simon sings8 on which Garfunkel sings15 on which neither Simon nor Garfunkel singsa) How many of his compact discs feature only Paul Simon? b) How many of his compact discs feature only Art Garfunkel? c) How many feature at least one of these two artists?
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2 months ago
Solve for b 2 in A = 1/2 h(b 1+b 2), if A = 16, h = 4, and b 1 = 3. b 2 =
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2 months ago
Division Sign outBill is making accessories for the soccer team. He uses 628.32 inches of fabric on headbands for 45 players and 3 coaches. He also uses 382.95 inches of fabric on wristbands for just the players. How much fabric was used on a headband and wristband for each player
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2 months ago
A triangle has a perimeter of 10a + 3b +12 and has sides of length 3a+8 and 5+b, what is the length of the third side?
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2 months ago
Solve for x: −2(4 − 2x) + 3x = 2x + 2(5 + x) − 6
General
2 months ago
20 POINTS!!! HELP ME!!!! Use the linear combination method to solve the system of equations. Explain each step of your solution. 3x-8y=7" " " " x+2y=-7
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2 months ago
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2 months ago
On a field trip Kayla's school bus travels 120 miles in 3 hours. How far did it go in 2 hours? A) 40 miles B) 60 miles C) 80 miles D) 160 miles
General
2 months ago
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