05/10/20

the sum of two numbers is three times the difference of the two numbers. the greatest number is five more than the lesser number.

a)write a system of equations to represent this situation b)solve simultaneously using the method of substitution or elimination in order to find the values of the lesser and greater numbers
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05/05/20

High School Probability Math Question. It's so CONFUSING!
Each student in the Junior class was asked if they had to complete chores at home and if they had a curfew. The table represents the data. Yes Curfew No Curfew Totals Yes Chores 51 24 75 No... more
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05/01/20

F of x equals 2x + 5 / x + 3
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05/01/20

R e y f of x equals 2x + 5 / x + 3 in the form f of x equals a over x minus h + k
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05/01/20

Find the first and second derivatives of M with respect to X
 M = 9X4 - 12 X 9 + 25 X Y Z + 50
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04/30/20

Find z, given the following. (Give your answer correct to two decimal places.) x = 243, μ = 224 and σ = 12.6
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04/30/20

Mean Value theorem problem? Im not sure what the topic is but PLEASE HELP!!!!!
We quote from V. Belevitch, Classical Network Theory (Holden-Day, 1968, p.159): “When a generator of e.m.f. e and internal positive resistance Ri is connected to a positive load resistance R, the... more
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04/30/20

Global minimum problem. PLEASE HELP

Find the global minimum of the function f(x)= 2x^3 + 6x^2 -18x - 4 on the interval [0,3]
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04/30/20

Calculus question on rates
The circumference of a circle is increasing at a rate of 1 ft/sec. At the instant the radius has a length of 19.5 feet, answer the following: (A) At what rate, in ft/sec, is the radius changing?(B)... more
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09/02/12

Suppose that f(x) has a domain of [4,18] and a range of [2,12]. What are the domain and range of:a) f(2 x) b) 2 f(x)
How do you find the domain and the range?
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09/02/12

1.)a^2/3 b^-3/4 divided by a^5/6 b^2 2.) (-2x^4y^-5) ^-3 divided by (4x^-3 y^4)^-2
getting rid of negative exponnets
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09/02/12

How long is each piece?
If a 25 inch rope is cut into three pieces such that the middle sized piece is 1 inch longer thatn the short piece and the longest piece is twice as long as the short piece.
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08/25/12

how to do I make a graph?
Your cost is 20 dollars plus 5 cents times the number of minutes you use yourphone.   C = 0.05m + 20
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