02/19/15
A 30°–60°–90° triangle has a hypotenuse with a length of 18. What is the length of the shorter leg of the triangle?
Please help!
02/19/15
The equation of which graph has a negative discriminant?
A. The graph shows a parabola opening up with a vertex at 2 comma negative 1
B. The graph shows a parabola opening up with a vertex at negative 1 comma negative 3
C. The graph shows a...
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02/19/15
Write an equation to represent the value of his stamp collection in terms of the number of stamps, s, that he had originally, and find the value of s.
Tony had a certain number of stamps that were each worth $0.15. He misplaced 7 stamps. He found that the total value of his stamp collection was now $5.55.
( I need this answered...
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The graph of which equation has a vertex of (-2, 0)?
Choose one answer. A. y = (x - 2)2 + 2 B. y = 3(x + 2)2 + 1 C. y = 3(x - 2)2 D. y = 3(x + 2)2
02/19/15
What is the difference between the two numbers?
Two whole numbers have a sum of 300. If the smaller number is divided into the larger number, the quotient is 3 with a remainder of 20. What is the difference between the two numbers?
a. 70
b....
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Math help ease and thank you!
A total of $12,000 is invested in two bonds that pays 8.5% and 10% simple interest. The annual interest is $1140. How much is invested in each bond?
02/17/15
helP!!!!!!!! Please
A rectangular piece of metal is 10in longer than it is wide. Squares with sides 2in long are cut from the four corners, and the flaps are folded upwar to form an open box. If the volume of the box...
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02/17/15
Composition of a function
Hello:
I need help with this question
Express the function y=sqrt x^2 +3 as a composition
y=f(g(x)) of two single functions
y=f(u) and u=g(x)
Thank you
02/17/15
Decompose the function
Decompose the function below into u(v(x)). In each part, based on the function v(x) given, find the corresponding u(x) needed to decompose the function
y=3+X^5
6+x^5
1) v(x)= x^5 +3...
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Help me to solve this problem
a boat is being pulled into a dock with a rope attached to the boat at water level. When the boat is 12ft from the dock, the length of the rope from the boat to the dock is 3 ft longer than twice...
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02/17/15
Average rate of change between two points
Consider the function f(x)=x^2 +2
Find the average rate of change between the points:
1) (1, f(-1)) and 4, f(4))
I know the answer for this one is 3 because 18-3 divided by 4-(-1) =15/5=3
But...
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02/17/15
How many gallons of a 70% antifreeze solution must be mixed with 100 gallons of 25% antifreeze to get a mixture that is 60% antifreeze? How do I solve this
I need to know step-by-step. I am really bad a word problems and get confused on what the book says about the six tep method
How much of each solution should be used if 21 gallons of 4% solution are needed?
A mixture of 4% disinfectant solution is to be made from 5% and 2% disinfectant solutions. How much of each solution should be used if 21 gallons of 4% solution are needed?
02/17/15
Domain and functions
Officials in a town use a function,C, to analyze traffic patterns. C(n) represents the rate of traffic through an intersection where n is the number of observed vehicles in a specified time...
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02/17/15
Determine the equation of g(x) that results from translating the function f(x) = x+4^2 to the right 15 units.
Determine the equation of g(x) that results from translating the function f(x) = x+4^2 to the right 15 units.Please help with steps on this type of problem as I am stuck and just can't figure the...
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02/17/15
select the approximate values of x that are solutions to f(x)=0 where f(x) = -3x^2+2x+6.
select the approximate values of x that are solutions to f(x)=0 where f(x) = -3x^2+2x+6.If you can also list the steps on how to get the result that would be really helpful as I am stuck and just...
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02/17/15
If h(x)=f(g(x))*g(x), then h'(1/2)= ?
If h(x)=f(g(x))*g(x), then h'(1/2)= ? Calculus, no calculator question.
02/16/15
I dont understand the question. Can you explain?
At 10am an airplane departs from hanger A, Hanger b, and hanger c. Airplanes depart from Hanger A every 15 minutes, from Hanger B every 18 minutes, and from hanger C every 24 minutes. How many...
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02/16/15
i need major help with this
helga is interested in adding an additional after school activity to her weekly routine. She is interested in adding either flag football or dance. The after school flag football team costs $30...
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02/16/15
I am a number less than 50, my unit digit is 8, the sum of my digits is 11, what number am I?
I'm attempting to help my niece with her homework, she's 10, and I'm so not, help please!
02/16/15
Word problem
A plane travels 800 mi from Dallas, Texas, to Atlanta, Georgia, with a prevailing west wind of 40 mph. The return trip against the wind takes 1/2 hr longer. Find the average speed of the plane in...
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02/16/15
the rainfall total 2 years ago was 10.2 inches. Last years total was 20% greater. what was last years rainfall total?
We are learning percent markup and markdown and percent increase and decrease. I want to know, which one do i do for this problem?
02/16/15
How do I solve 1.171343 X 10 to the power of -11 Thank you!
1.171343 X 10-11
Please advice on how to solve.
HELP!! I dont understand this word problem!
An investment is worth $3980 in 1994. By 1999 it has grown to $6380. Let y be the value of the investment in the year x, where x=0 represents 1994. Write a linear equation that relates the value of...
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