douglas12
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Questions Asked

douglas12:
Group Title
y varies directly as to x. when
x = 1.5 y = 9. Find y when x = 6
 updated one year ago
 6 replies
 No Medals Yet
Mathematics

douglas12:
Group Title
Write the equation of direct variation for x = 3, y = 4.
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

douglas12:
Group Title
Which is the standard form of a circle with equation x^2 + 4x + y^2  6y = 3?
A. (x+2)^2+(y+9)^2=16
…
 updated one year ago
 No Medals Yet
Mathematics

douglas12:
Group Title
Solve:
y = 1
…
 updated one year ago
 1 reply
 1 Medal
Mathematics

douglas12:
Group Title
Identify the conic section. If it is a parabola, give the vertex. If it is a circle, give the center and radius. If it is an ellipse or a hy…
 updated one year ago
 4 replies
 No Medals Yet
Mathematics

douglas12:
Group Title
Suppose y varies jointly with x and z, and x = 4 when y = 8 and z = 2.What is the value of x when y = 12 and z = 3?
A. 4
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 updated one year ago
 No Medals Yet
Mathematics

douglas12:
Group Title
Suppose y varies jointly with x and z, and x = 4 when y = 8 and z = 2.What is the value of x when y = 12 and z = 3?
A. 4
…
 updated one year ago
 No Medals Yet
Mathematics

douglas12:
Group Title
Use natural logarithms to solve the equation. Round to the nearest thousandth.
5e^2x+8=22
…
 updated one year ago
 10 replies
 No Medals Yet
Mathematics

douglas12:
Group Title
The amount of money in an account with continuously compounded interest is given by the formula A = Pe^rt, where P is the principal, r is th…
 updated one year ago
 4 replies
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Mathematics

douglas12:
Group Title
The social and political environment unique to a story’s time and place is its—
A. Tone
…
 updated one year ago
 3 replies
 1 Medal
Mathematics

douglas12:
Group Title
Solve. Check for extraneous solutions.
6x=sqrt24+12x
…
 updated one year ago
 No Medals Yet
Mathematics

douglas12:
Group Title
A cube shaped box has a volume of 512 cubic inches.. Find the length of each side given V=s^3
A. 100
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 updated one year ago
 2 replies
 1 Medal
Mathematics

douglas12:
Group Title
Solve the equation: x^2 + 5x + 22 = 0
A. 0…
 updated one year ago
 8 replies
 4 Medals
Mathematics

douglas12:
Group Title
The graph of g(x)=8x2+ 7x  2 is translated up 7 units to produce the
graph of the function h(x). Which of the following could be h(x)?
…
 updated one year ago
 4 replies
 No Medals Yet
Mathematics

douglas12:
Group Title
If a baseball is dropped from a helicopter 625 feet above ground, then its distance in feet form the ground t seconds later is modeled by 1…
 updated one year ago
 5 replies
 1 Medal
Mathematics

douglas12:
Group Title
Find a quadratic model for the set of values.
x:
…
 updated one year ago
 3 replies
 No Medals Yet
Mathematics

douglas12:
Group Title
Determine whether the matrix has an inverse. If an inverse exists, find it.
5 18
…
 updated one year ago
 8 replies
 No Medals Yet
Mathematics

douglas12:
Group Title
Solve the system by the method of substitution.
y = 3x + 8
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 updated one year ago
 5 replies
 2 Medals
Mathematics

douglas12:
Group Title
Solve the system by the method of substitution.
2x2yz=14
…
 updated one year ago
 3 replies
 1 Medal
Mathematics

douglas12:
Group Title
Consider the exam data below.
Algebra score:
…
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

douglas12:
Group Title
Determine whether y varies directly with x. If so, find the constant of variation k.
–7y = –3x
…
 updated one year ago
 7 replies
 1 Medal
Mathematics

douglas12:
Group Title
Use a graphing calculator to find the equation of the line of best fit for the data. Find the value of the correlation coefficient r.
Jim…
 updated one year ago
 No Medals Yet
Mathematics

douglas12:
Group Title
Determine whether y varies directly with x. If so, find the constant of variation k and write the equation.
x:
…
 updated one year ago
 10 replies
 No Medals Yet
Mathematics

douglas12:
Group Title
Determine whether the following lines are parallel, perpendicular, or the same line.
y=2x and y+3=1/2(x7)
…
 updated one year ago
 No Medals Yet
Mathematics

douglas12:
Group Title
Find the y – intercept of y = 9x  6
A. 1/3
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 updated one year ago
 3 replies
 1 Medal
Mathematics

douglas12:
Group Title
A car can be rented for $32.95 per day with an additional charge of $0.15 per mile. Write the linear equation representing this scenario.
…
 updated one year ago
 1 reply
 1 Medal
Mathematics

douglas12:
Group Title
y = 5 is a linear equation
…
 updated one year ago
 2 replies
 No Medals Yet
Mathematics

douglas12:
Group Title
Determine whether the following lines are parallel, perpendicular, or the same line.
…
 updated one year ago
 2 replies
 No Medals Yet
Mathematics

douglas12:
Group Title
Find the domain of f(x)^1 if f(x)=4x8
A. x≠ 1/4
…
 updated one year ago
 1 reply
 1 Medal
Mathematics

douglas12:
Group Title
Given the relation {(7, 3), (6, 1), (4,9), (2, 5)} find the range of its inverse.
A. (1, 3, 5, 9)
…
 updated one year ago
 12 replies
 1 Medal
Mathematics
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