4,335 Answered Questions for the topic College Algebra
College Algebra
11/21/20
college algebra word problem
Use the Binomial Theorem to write the first three terms of the binomial.(a + b)^15
College Algebra
11/21/20
college algebra word problem
Use the binomial theorem to expand the expression. Simplify the result.(a + 4)^3
College Algebra
11/21/20
college algebra word problem
Express the arithmetic sum using summation notation.5 + 10 + 15 + 20 + 25 + 30 + 35 + 40 + 45 + 50
College Algebra
11/21/20
college algebra word problem
Express the description of a sum using summation notation.The sum from n = 0 to n = 9 of 7n
College Algebra
11/21/20
The length of a rectangle is four more than double the width. If the perimeter is 122 inches, find the dimensions.
find the dimensions.for both width and length
An architect drew a floor plan for a school he has designed.
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Draw a square with sides of 2 units and lower left vertex at point A (3,2).
Draw a square with sides of 2 units and lower left vertex at point A (3,2). What will the coordinates of the upper right vertex be? Rotate the figure 90 degrees counterclockwise about point A and...
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Describe the transformation
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College Algebra Math
11/20/20
Logarithm Algebra
ln2 = aln7 = bUsing the properties of logarithms write this log in terms of a and blogarithm = ln314
Mrs. Dellamorte starts a side-business selling her mixtape. She makes a weekly profit by selling 'x' mixtapes according to the equation p(x)=-0.5x²+40x-300
How many mixtapes does she need to sell each week to maximize her profit? Don't forget to use units.
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11/20/20
A roller coaster travels 350 feet horizontally and then travels 130 feet at an angle of 60 degrees from the ground. What is the direction of the resultant vector?
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11/20/20
arithmetic and composition (please help ive tried everything!)
The cost to manufacture a product is proportional to the quantity produced, with a cost of $5000 dollars per day when 100 items are produced. The cost to store n items is proportional to the...
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What is the average difference in the air pressure between the top and bottom of the wing?
The wing of an airplane has an average cross-sectional area of 11 m2 and experiences a lift force of 72,000 N. What is the average difference in the air pressure between the top and bottom of the...
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Compute the speed of the air flowing into the room (in ft/s), assuming that we can treat the air as an incompressible fluid.
Air flows through a heating duct with a square cross-section with 6-inch sides at a speed of 5.9 ft/s. Just before reaching an outlet in the floor of a room, the duct widens to assume a square...
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How much soybean oil must the bowl displace in order to float?
A metal bowl with a weight of 1.25 N is placed in a larger kitchen container filled with soybean oil. How much soybean oil must the bowl displace in order to float? For reference, the mass density...
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College Algebra
11/19/20
Graphing functions
Graph the function f(x)=x after it has been vertically shifted 4 units.
College Algebra
11/19/20
Graphs of linear functions
Give the equation of the line passing through the point (12,−22) that is perpendicular to y=6/7x+1.Write your answer in slope- intercept form.
College Algebra
11/19/20
college algebra word problem
A cell phone factory has a cost of production C(x) = 150x + 40,000 and a revenue function R(x) = 400x. What is the break-even point?
College Algebra
11/19/20
college algebra word problem
Use a system of linear equations with two variables and two equations to solve.If an investor invests a total of $40,000 into two bonds, one that pays 4% simple interest, and the other that pays 3...
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College Algebra
11/19/20
college algebra word problem
A plane traveling with the wind travels 700 miles in 5 hours. The return trip is against the wind and takes 7 hours. Find the rate of the plane in still air and the rate of the wind.
College Algebra
11/19/20
college algebra word problem
In one day, a book store earned $239 in sales for 4 copies of a new cookbook and 5 copies of a new science fiction novel. On the next day, it earned $182 in sales for 3 copies of the cookbook and 4...
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College Algebra
11/19/20
college algebra word problem
Two angles are supplementary. The measure of one angle is 42° more than twice the measure of the other angle. Find the measure of each angle. (Enter your answers as a comma-separated list. Use the...
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College Algebra
11/19/20
How many liters of pure water should be mixed with a 8-L solution of 90% acid to produce a mixture that is 90% water?
The answer has to be as a integer or as a decimal.
11/19/20
If sinA= -5/13 with angle A in quadrant 3, and cosB= -8/17 with angle B in quadrant 2, then find
sin (a-b)
cos (a+b)
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