04/23/17
Word Problem see in description
According to the U.S. census bureau survey in 2009 about half as many people in the United States spoke Vietnamese at home as spoke Chinese. If a total of about 3900000 people spoke these languages...
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04/23/17
find f' using the definition of derivative
If f(x)=1x+2, find f′(−5), using the definition of derivative. f′(−5) is the limit as x→_____ of the expression __________
The value of this limit is _________
04/23/17
Finding coordinates
For the function f(t) = 3sin(6t+π)+2
Find:
a) period
b) phase shift
c) The t-coordinate of the first maximum to the right of the vertical (y) axis.
d) The t-coordinate of the...
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04/21/17
probabilty
Let X be the score when a cube with faces 1 through 6 is rolled. You are given that E(X)= 3.5 and SD(X) =1.708.
A cube with faces 1 thru 6 is rolled 50 times. Which of the following most closely...
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04/18/17
how do you split 81$ evenly for 9 people
How do you make 81 dollars an equal share for 9 people
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04/18/17
A ladder is 10 feet long resting on a wall. If the ladder is being pulled at a rate of 2 feet per second.
How fast is the ladder moving toward the wall when the top of the ladder is 6 feet off ghe ground?
04/17/17
please help!
April and Sanjay are both using tools to simulate the probability that a family with three children will have exactly one girl. April is using a coin, with tails up representing a boy and heads up...
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04/17/17
moving truck company comparison
You need to rent a moving truck for two days. Rider MovingTrucks charges $50 per day and $.50 per mile. UMove Trucks charges $45 per dayand $0.75 per mile. Write an equation describing each...
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04/17/17
It is required that the angle that the rope makes with the ground must be 40 degrees and 55 degrees
17 feet
45degrees 55 degrees
04/14/17
Math question and I need urgent help please
Your family buys a photo printer to print out digital pictures. The printer costs $200. The ink and paper cost about $.60 for each photo you print.a. Write an equation that gives the average cost...
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04/12/17
70 items for which he paid $3500. Write the two rate (ratios) implied by this statement. What would he have had to pay for 720 items at the same rate?
70 items for which he paid $3500. Write the two rate (ratios) implied by this statement. What would he have had to pay for 720 items at the same rate?
What is the probability of choosing 2 white balls and 3 red balls?
a barrel contains 7 yellow balls, 3 green balls, 11 white balls, 5 red balls and 4 orange balls. What is the probability of choosing 2 white balls and 3 red balls?
04/12/17
Sample mean and sample median
A population is formed my placing 5 balls labelled 1,2,3,4 and 5 respectively. Mean of this population is 3. Someone who does not know the contents of this bag will estimate the balue of mean by...
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04/11/17
Sample mean and sample median
A population is formed my placing 5 balls labelled 1,2,3,4 and 5 respectively. Mean of this population is 3. Someone who does not know the contents of this bag will estimate the balue of mean by...
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04/10/17
Optimization problems
a rectangular field of 1350 ft^2 is to be enclosed with a fence against an existing wall, so that no fence is needed on that side. The material for the fence cost $3/ft. for the two end sides...
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04/09/17
determine which of the following statements is true for the function g(x)=4x
algebra nation section 8 test yourself
04/09/17
How many gallons do I need?
You need a chemical mixture that includes a 4 to 1 ratio of chemical A to chemica B.( i.e. , 4 parts of A to 1 part to B) How many gallons of chemica B need to add to 20 gallons of chemical A to...
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04/09/17
sarah and henry share some sweets in the ratio 7:6 saraheats 20 of her sweets and the ratio of sweets left is 1:2. how many sweets did henry have?
sarah and henry share some sweets in the ratio 7:6 sarah ears 20 of hers that left the ratio 1:2 how many sweets did henry have
04/08/17
Basic Math Help
Alvin paddled for 22 hours with a 88-km/h current to reach a campsite. The return trip against the same current took 10 hours.Find the speed of the boat in still water.
04/08/17
Kenyan French Roast Coffee
The Coffee Counter charges $10.00 per pound for Kenyan French Roast coffee and $12.00 per pound for Sumatran coffee.How much of each type should be used to make anan 18 pound blend that sells for...
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04/07/17
how long will it take 2 people 600 feet apart to meet, if both are are walking towards each other at a constant speed of 3mph?
just a small part of a much larger larger question
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04/07/17
Fraction Operation Word Problem (Division) help?
20÷5=4 can be conceptualized as the length of 20 being divided into pieces of length 5, where 4 is the number of pieces. How do I use this conceptualization to solve the problem 3 1/2 ÷ 2 1/2...
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04/07/17
Fraction Operations Word Prob (more in description)
Yasmine is having a birthday party with snacks and activities for her guests. At one table, five people are sharing three-quarters of pizza. I used the equation: 3/4 = 3/4 x 1/5 =3/20
I need...
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