05/01/15

STORY PROBLEM FOR MY SON'S HOMEWORK. CAN'T FIND ANSWER KEY ON LINE
IN A METER RACE, ALAN RAN 3 X AS FAR AS CATHY. CATHY RAN 1/2 AS FAR AS DAVID. DAVID'S TOTAL METERS RUN WAS A MULTIPLE OF 7 LESS THAN 50. BECKY RAN 21 TIMES LESS THAN THE NUMBER OF METERS RUN BY... more
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04/30/15

Poisson Probability
Can someone please show me how to solve this. Your help is greatly appreciated.    Airline fatalitiesU.S. airlines average about 4.5 fatalities per month (Statistics Abstract of the United... more
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04/30/15

graph and write the equation of the line
parellel to the line 2x=7y+1 and passing through the point (1,-1)
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04/30/15

graph and write the equation of the line
graph and write the equation of the line passing through the points (2,2) and (4,3)
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04/30/15

A rocket goes into teh air and its path is represented by the following function in t seconds and h meters: h=3t2+6t+27
h=3t2+6t+27
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04/30/15

the length of a rectangle is 5 less than twice the width. Given that the length is x and width is y and the perimeter is 20 cm, perform the following: a) Form a
form a system of equations using variables x and y form an augmented matrix of the system and solve the system find the area of the rectangle
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04/30/15

How much was present at the original measurement?
I also need to know how much was in the sample to the nearest gram after 4hrs. based on the above information   a sample of radioctive substance decayed according to y=210(10)^-3x where y was the... more
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04/30/15

Write the trigonometric expression in terms of sine and cosine, and then simplify. sin ? sec ?
help please
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04/29/15

How many children are at the party? How many got a blue and a red? How many got a blue and a black? How many got a red and a black?
At a birthday party, balloons are given out st the door. Every 3rd child got a red balloon, every 4th child got a black balloon and every 5th child got a blue balloon. Altogether 47 balloons were... more
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04/29/15

can you give me a solution?
 A hot-air balloon is ascending at the rate of 10 kph. If a bomb is dropped from the balloon such that it takes 8 seconds to reach the ground, determine the balloon’s altitude when the bomb was... more
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04/29/15

NEED ANSWERED ASAP! Derivatives of exponential functions...
determine the derivative of the following:    g(t)= e2t / 1+e2t
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04/29/15

Finding sum of 4 rectangles' perimeters' over original rectangle perimeter
Let a rectangle's side lengths be 4 and 6. We draw one vertical line and one horizontal line through the rectangle so that we know have four rectangles. The sum of the four rectangles' perimeters... more
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04/29/15

elle is working to save money for college..rest of question on the bottom discription
please help me there is 2 parts a. write an equation or inequality to solve the problem b. fing the answer   Question:elle is working to save money for college. she wants to have a minimum of... more
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04/29/15

compound statements into symbols
let p represent the statement, "Jim plays football, and let q represent "Michael plays basketball". convert the compound statement into symbols   7) Jim does not play football and Michael does... more
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04/29/15

World Population Growth
In 2010, the world population was 6.9 billion, and the exponential growth rate was 1.1% per year. a) Find the exponential growth function, b) Predict the world population in 2014,  c) when will... more
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04/29/15

How many gallons of 40% antifreeze must be mixed with 10 gallons of 70% solution to get a 50% solution?
How many gallons of 40% antifreeze must be mixed with 10 gallons of 70% solution to get a 50% solution?
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04/29/15

A group to be surveyed is randomly selected from employees who have been with the company for 5 years. Name the type of sampling used and is the sample biased?
A company conducts a survey every spring to measure the morale of its employees. A group to be surveyed is randomly selected from all employees who have been with the company for exactly 5 years.... more
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04/29/15

Which poetic line contains an example of consonance?
Which poetic line contains an example of consonance? A. Slight thy form, and low thy seat B. What a world of happiness their harmony foretells! C. He gives his harness bells a shake D. Left not... more
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04/29/15

Exponential and logarithmic functions
Carbon 14 also known as radiocarbon, is a radioactive form of carbon that is found in all living plants and animals. the amount of radio carbon present, y, in animal bones after t years is given by... more
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04/29/15

Parabola, find the vertex, axis of symmetry, x & y intercepts, draw graph
For the parabola y=1/2x2+x+3 find the vertex, axis of symmetry, x- and y- intercepts, and draw the graph.    
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04/29/15

The following equation y = 6x + 121, estimates the number of faculty members at two year colleges, in thousands, where x is the number of years after 1970. For
The following equation y = 6x + 121, estimates the number of faculty members at two year colleges, in thousands, where x is the number of years after 1970.  For what year will there be more than... more
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04/29/15

Jan plans to invest $7500, part at 4% simple interest and the rest at 5% simple interest.
Jan plans to invest $7500, part at 4% simple interest and the rest at 5% simple interest. What is the most that he can invest at 4% and still be guaranteed at least $325 per year?
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04/29/15

Please expand :(x+y+z)^(n)
Please expand :(x+y+z)^(n)
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04/29/15

Please expand :(a+x)^(-n)
Please expand :(a+x)^(-n)
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04/28/15

Algebra 2 I'm behind on my work and need help....trying get this turn in by tomorrow
5-4 Factoring Quadratic Expressions A)3a²+9 B)25b² -- 35 C)x²-2x D)14y²+7y   Factor each expression E) X²+3X +2 D)D² -12D +27 F) y² +5x +6 G) 2x² -19x+ 24  
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