Questions on Algebra: Linear Algebra (NOT Linear Equations) answered by real tutors!

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Question 984906: Water weights about 62 � lbs. per cubic foot, and there about 7 ⅛ gallons in 1 cubic foot. If a 10-gallon can weight 16 lbs. when empty, how many cans of water can be hauled in one ton truck?

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Question 985145: im trying to figure out this equation y=f(x)=2300(1.4 to the x power)

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Question 985396: my question is 2x - 3y =5 and 3x - 2y = 20 please help me in to solve this
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Question 985492: I am trying to do systems of equations for algebra 2 I am stuck on the first problem which is 5x+4y=6
-2x-3y= -1 can you help me out so far I have subtracted 5x - 2x and got 3x and I subtracted 3y from 4y and I have subtracted 6- -1 and got the equation 3x- 1y = 7 I think I cancel out the y value and divide 3x by 3 and 7 divided by 3 but I don't know I'm stuck please help me asap
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Question 985605: -1=3+4x

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Question 986053: 1) x-axis and f(x)=2x-x^2

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Question 986379: The John James Audubon Bridge is a cable-stayed bridge in Louisiana that opened in 2011. The height from the bridge deck to the top of the tower where a particular cable is anchored is about 500 feet, and the length of that cable is about 1200 feet. Draw the cable on a coordinate plane, letting the x-axis represent the bridge deck and the y-axis represent the tower. Write a linear function whose graph models the cable. Identify the domain and range, writing each as an inequality, using set notation.
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Question 986435: y= -1/3x+4
Put into slope-intercept form
HELP
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Question 986823: how do I solve for b? 3(ab-5)=b/3 and how do I solve for f? 2f-3=9h-fg
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Question 986848: Solve for x. X/a-1=y/b
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Question 987361: Let f(x)= x^2 - 16 and g(x)= x - 4. What are f*g and f/g ? What are their domains?
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Question 987473: -3[a-(2a+1)]
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Question 987556: last year, a farmer used 3 ploughs to plough a field in 17 hours. this year the same job must be done in 5 hours, how many ploughs will be needed?
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Question 987887: -7m-10n when m=-2 and n =3/2
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Question 987909: |3x-4|+5<27
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Question 987923: solve and graph: 3x + 2y <= 600
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Question 987924: solve and graph: 5x + 2y >= 40
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Question 987922: solve and graph: x + y >= 200
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Question 988765: 2X-3Y=8 (find y)

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Question 989529: Find the equation of the line parallel to 𝑙 which passes through the point left(6,5)
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Question 989532: A is the point (2, 7) and B is the point (−1, −2)
Find the equation of the line through A parallel to the line y = 4x − 5, giving your answer in the form y = mx + c.
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Question 989694: Is there no help for a linear equation question?
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Question 990159: 68mi/h=mi/sec
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Question 990161: find the slope of the line if is is defined. through (3,6) and (3,-10)
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Question 990168: 8(y+3)
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Question 990172: 4(2p+4p+6)
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Question 990170: 9 5/6(x+1/4+4)
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Question 990167: 14(2p+4q+6)
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Question 990160: 9 5/6(x+1/4+4)
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Question 990158: 4(2p+4q+6)
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Question 990157: 8(y+3)
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Question 990156: 8(y+3)
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Question 990668: Differentiate with respect to x
X^2 over square root x^2-1
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Question 990673: What are the coordinates of the points on the curve y=x^3-1.5x^2-6x+2 the gradient is zero
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Question 991010: We were asked to solve some systems, but I am stumped on this one:
3x-2y+4z=1
x+y-2z=3
2x-3y+6z= 8
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Question 991390: 12(x - 6) = 2(x - 9)
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Question 991485: I am confused on answering this question
(-3(3+4)-3)/(|-15-4(5)|)
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Question 991559: x+y<=5
x+2y<=8
x>=0,y>=0
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Question 992139:
Find the value of "a" such that the function is continuous at x=0

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Question 992182: A store is offering a discount of 25% on a CD. There is a sales tax of 6%. Using a composition of functions represent the situation where the discount is taken first and then the sale tax is applied after.
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Question 992381: i dont know what algebra is this but i do noy understand it
h(x)=2x+5;Calcula h(-10)

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Question 992970: Consider the line 3x+9y=4
What is the slope of a line perpendicular to this line?
What is the slope of a line parallel to the line?
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