03/24/15

Probability
Steve Marduke has two spinners in front of him. The first one is numbered 1-6, and the second is numbered 1-3. If Steve spins each spinner once, what is the probability that the first spinner will... more
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03/23/15

it takesa word processor 30 minutes to word to word process and spell check 4 pages. Find how many pages she can word process and spell check in 4.5 hours.
im having trouble answering this question. my test is tomorrow and i need help please answer asap
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03/23/15

a water tank can be filled in 10 hours by an inlet pipe and emptied in 15 hours by an outlet pipe. how long will it take to fill the tank if both pipes ate left
It's an story problem  
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03/23/15

A bin contains 4 apples and 3 oranges. 2 pieces of fruit are selected at random without replacement.
a) Use a tree diagram to construct a probabilistic model for this experiment. b) What is the probability that the sample contains at least one orange? c) What is the probability that they are... more
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03/23/15

Find the composition A ° r and explain what it represents in the context of the problem.
A square concrete foundation was prepared as a base for a cylindrical propane tank.a. express the radius,r,of the tank as a function of the length, x, of the sides of the square. b. express the... more
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03/23/15

find the width of a picture frame
A picture frame measures 12 cm by 20cm (uniform width). The picture without the frame measures 84 cm ^2. Find the width of the frame 
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03/23/15

Money word problem
A savings bond is currently worth $7600 at %5.5 annual simple interest each year. If the bond was purchased 7 years ago, how much was it bought for? Round to the nearest cent.
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03/23/15

some one saw birds 18 days of june what is the exoerimental; probability that she will see birds in her garden july 1
i need an answer because i will need one
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03/23/15

What is the expected number of functioning dishwashers? What is the variance for the number of functioning dishwashers? What is the standard deviation for?
A dishwasher factory has a 1/8 chance of producing a defective dishwasher, and a 7/8 chance of producing a functioning one. An inspector selects a batch of 256 dishwashers produced by the machine... more
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03/23/15

the height of a wind power
need help!! the height of a wind power assessment tower is 5m shoter than the guy wire that supports it. if the guy wire is anchored 15m from the foot of the antenna, how tall is the antenna?
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03/23/15

Contains X numbers, for what values of X
for company A  -the flat rate is $3.00 plus 7 cents per word for company B - the flat rate is $1.50 plus 12 cents per word 
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03/23/15

A store is selling ice cream and has 100 different toppings available. A person may have none, some, or all toppings. How many different choices are there?
for example chocolate sauce, cherries, and mint chips would be one choice. or butterscotch sauce and heath bar crumbles would be another choice.
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03/23/15

MAybought some books $4.95 totalsome books were 50cents each and some were 35 cents each he got less than 8 books how many books did he buy .how many 50books
how many books did he buy how many were 50cents  
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03/23/15

Find the determinant
|1 -1 3| |0 -2 1| |4  0 1|
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03/23/15

Credit Card Interest Charged Logarithm
A Credit Card charges an annual yield of 17.5%. If you borrow $5000 on your credit card and do not pay your debt back, in how many years will you have been charged $10,000 of interest on your debt?
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03/23/15

What is the 35th term of the arithmetic sequence where a1 = 13 and a17 = -67?
What is the 35th term of the arithmetic sequence where a1 = 13 and a17 = -67?Choose one answer. A. -163 B. -160 C. -157 D. -154
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03/23/15

Find (A) f'(x), (B) the partition numbers for f' , and (C) the critical numbers of f.
f(x) = x3—12x+8
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03/23/15

determine the elements of the set (X'uY)n(Z'uY)'
 given U={0,1,2,3,4,5,6,7,8,9}, x={2,4,6,8}, Y={0,2,3,4,5,6}, Z={0,1,2,3,8,9}  
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03/23/15

probability model
a bin contains 4 apples and 3 oranges. 5 pieces of fruit are selected at random Without replacement A.) construct a probabilistic model for this experiment using combination b.) What is the... more
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03/23/15

any bolt length that exceeds 2.5 standard deviation from the mean will be discarded. what is the range of length that is accepted?
There are 35 bolts and the measurements are:     1.5625      1.6625     1.6625     1.6625     1.6625 1.8625      1.8625     1.8625     1.8625     1.8625 1.9625      1.9625    ... more
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03/22/15

Gasoline mixture question
A service station has 65 octane and 78 octane gasoline. How many liters of each gasoline should be mixed to provide 13 liters of 75 octane gasoline for a chemistry experiment?
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03/22/15

i have hens geese ducks 2 goats hens =geese + ducks 5 more ducks than geese 40 in all ? are ducks
A farmer has hens geese ducks and 2 goats. # hens=g+d g=d-5. Totsl # if animals are 49. How many are ducks?
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03/22/15

Null and alternative hypotheses set up
In a survey of 1120 new college graduates 281 had a professional job on graduation day. One year ago the proportion of graduates with a professional job on graduation day was 24%. The setup of the... more
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03/22/15

Principal and amount invested
Tom invested part of $12,000 in a 5% simple interest account and the remainder in 7.5% simple interest account. If the total interest earned from the two investments in one year was $775, how much... more
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03/22/15

Speed of missile word problem
Two low-flying missiles are launched from the same location at sea and sent in opposite directions. After 10s they are 30,000 ft apart. If one missile travels 500 ft/s faster than the other, what... more
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