4,322 Answered Questions for the topic College Algebra
Quadratic Functions
NASA launches a rocket at t=0 seconds. Its height, in meters above sea-level, as a function of time is given by h(t)=−4.9t2+289t+283.Assuming that the rocket will splash down into the ocean, at...
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Quadratic Functions
7Use the quadratic formula to solve the equation 9x2−24x+41=0.Enter multiple answers as a list separated by commas. Example: 2+2i,2−2i
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Quadratic Functions
Consider the Quadratic function f(x)=x2−3x−18.Iits vertex is ( , ).its largest x-intercept is x= .its y-intercept is y=
Quadratic Functions
3Put the equation y=x2+2x−3 into the form y=(x−h)2+k:Answer: y =
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Quadratic Functions
Consider the function h(x)=14x2+x−3 6
What is the vertex of h ?
What is the equation of the line of symmetry of h ?
h has a of
The x -intercept(s) of h is/are
The y -intercept...
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College Algebra
10/07/20
College algebra HELP!
Two brothers, Rick and Walter, each inherit . Rick invests his inheritance in a savings account with an annual return of , while Walter invests his inheritance in a CD paying annually. How much...
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10/07/20
exponential models
The count in a bacteria culture was 500 after 20 minutes and 1100 after 30 minutes. Assuming the count grows exponentially,What was the initial size of the culture? Find the doubling...
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College Algebra
10/06/20
How many cords of wood could you fit in a room that is 8 yards long, 8 yards wide, and 7 yards high? Use
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College Algebra
10/06/20
your car gets 32 miles per gallon how much does it cost to drive 320 miles when gasoline costs $2.70 per gallon?
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10/06/20
Find the dimensions of the original piece of metal
A rectangular piece of metal is 5 in. longer than it is side. Square with sides 2 in. long are cutfrom the four corners, and the flaps are folded upward to form an open box. If specifications call...
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College Algebra
10/06/20
A rectangular plot’s length is one more than twice the width of the plot. If the total area of plot is 5,460 square feet, what are the dimensions of the plot?
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College Algebra
10/06/20
Determine the speed
Two trains leave the same city at a right angle to each other and continue in straight lines. Train B travels 5 mph faster than train A. After two hours, they are 50 miles apart. Determine the...
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What is the cardinal number of the set C={0,5,−4,25,103,56}
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10/06/20
Find an equation of the line passing through the given points. Use function notation to write the equation.
The coordinates provided are (-8,-3) and (-12,-2)
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College Algebra Math
10/05/20
College Algebra
A rocket is shot into the air from a launching pad 15 feet above the ground with an initial velocity of 174 feet per second. The height, h, in feet of the rocket above the ground t seconds after...
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College Algebra
10/04/20
Suppose the perimeter of a rectangular floor is 90 feet. Find the dimensions of the floor if the length is four times the width.
You guys shared stuff similar to this question about it being twice the length and width but I can't figure out how to find the answer when it is four times the length and the width. If you could...
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College Algebra
10/04/20
the question is below
The number of electric scooters e that a factory can produce per day is a function of the number of hours h it operates and is given by e(h) = 250h for 0 ≤ h ≤ 10. The daily cost c to...
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College Algebra
10/04/20
A formula in the form y = mx+22,000 models the average retail price, y, of a new car x years after 2000. Would you expect m to be positive, negative, or zero? Explain your answer
A formula in the form y = mx+22,000 models the average retail price, y, of a new car x years after 2000. Would you expect m to be positive, negative, or zero? Explain your answer
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College Algebra
10/03/20
distance between 2 points, 785 mi, 2 hours
donald trump has an appointment 785 miles from his office. he takes a helicopter from trump towers to the airport and a plane from the airport to the business appointment. the helicopter averages...
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College Algebra
10/03/20
invest 12,000 in 2 funds paying 4.5% and 5% interest
you plan to invest $12,000 in two funds paying 4.5% and 5% interest. at the end of the year you have $580 from your investments. how much did you invest at 4.5% and how much did you invest at 5%?
College Algebra
10/03/20
percent increase
in 2003, the number of cell phone users was estimated at 148,000,000. by 2007, the number of cell phone users was estimated to be 168,000,000. find the percent increase
College Algebra
10/03/20
distance of 2 cars at 345 miles apart
two cars start moving from the same point and move in opposite directions. the car moving west is traveling 50mph and the car moving east is traveling 65mph. in how many hours will the cars be 345...
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College Algebra
10/03/20
flagpole height
a person who is 6 feet tall walks away from a flagpole toward the tip of the shadow of the flagpole. when the person is 30 feet away from the flagpole, the tips of the persons shadow and the shadow...
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College Algebra
10/03/20
A in the class test %. HELP
to get an A in a course you must have an average of at least 90 on four tests of 100 points each. the scores on your first three tests were 88, 90, 85. what must you score on the fourth test to get...
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