2,208 Answered Questions for the topic Pre Calculus
Pre Calculus
10/24/15
Write equation of each line in slope intercept form
passing through (-4,5) and (-2,0)
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Pre Calculus
10/20/15
If f (x) = 3x-5 find f (x) -f (a) / x-a
What is the domain , range and function notation
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Pre Calculus Math Word Problem
10/14/15
The pointer on a voltmeter is 6 centimeters in length. Find the number of degrees through which the pointer rotates when it moves 2.7 centimeters on the scale.
i need help with this problem for my pre calc class
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Pre Calculus
10/14/15
The graph of (-1,5) passes through and is perpendicular to the line whose equation is x = y
write an equation in slope-intercept form of a linear function whose graph satisfies the given conditions.
Pre Calculus
10/13/15
Degree 4; zeros: -5+5i; 4 multiplicity 2? Enter the polynomial. f(x)=a(.........)
Degree 4; zeros: -5+5i; 4 multiplicity 2?Enter the polynomial.f(x)=a(.........)
10/13/15
Give a formula for the extended function
F9x) = 3-√x / 9-x that is continuous at a=9
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Pre Calculus Math Help
09/29/15
How do I find the second term for this sequence: an=2an-1+3 a1=2
I don't really know how to do this, should I just substitute 2 in for n or would that be wrong.
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Pre Calculus
09/25/15
If a stone is thrown down at 100 ft/s from a height of 1,150 feet, its height after t seconds is given by s = 1,150 - 100t - 16t2.
(a) Find its average velocity over the period [1, 2]. ft/s(b) Estimate its instantaneous velocity at time t = 2. HINT [See Example 3.] ft/s
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09/18/15
The average prescription prices P (in dollars) from 1997 through 2004
can be approximated by the model P=0.1220t^2 + 1.529t + 18.72, 7 <= t <=14, where t represents the year, with t=7 corresponding to 1997.
a) determine algebraically when the average retail...
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Pre Calculus
09/17/15
for the given functions f and g, find the requested function and state its domain
f(x)=6x-3 ; g(x)=2x-4
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Pre Calculus
09/15/15
A group of friends decide to buy a vacation home for $120,000, sharing the cost equally. If they can find one more person to join them, each person's
group of friends buy vacation home for $120,000. If one more person is added, the amount of money equally shared by the group will decrease by $6,000. How many people are originally in the group??
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09/14/15
find the length of the side of the square, given its 3 inches shorter than the diagonal
The side of a square is 3 inches shorter than the length of the diagonal. Find the length of the side.
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09/14/15
find the lengths of the triangle and the square
the sides of an equilateral triangle are one unit more than the sides of a square. If the sum of their perimeters is equal to 107 inches, then find the lengths of the sides of both the square and...
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Pre Calculus
09/10/15
y is at most two units from a.
Use absolute value notation to describe the situation.
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Pre Calculus
09/09/15
Precalc word problem
An object is rotating at 600º per second, find the central angle of Θ, in radians, when t= 3 seconds
08/31/15
integration help
using integration, find the area of each of the enclosed regions
I've completed one correctly, but have no clue how to solve the other two can someone help? or set up the other two for...
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08/31/15
find the derivative of each of the following
1) f(x)=6x-11/8x+1
2) f(x)=(5x-2)(2x+3)/x-4
3) f(x))=√¯8-5x
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08/31/15
INTEGRATION
Using integration find the area of each of the enclosed regions how do I solve these?????? 1) x-axis and f(x)=2x-x^2 2) f(x)=x^2 and g(x)=x 3) f(x)=x^3-3x and g(x)=x
Pre Calculus
08/28/15
(4a+2)^3 find the product
I dont know what to do or how to start the problem. Math is not an easy subjuct for me, please help!!
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08/27/15
find the derivative of each of the following
1)f(x)=(3x2+5)(2x-1)
2) f(x)=6x-11/8x+1
3) f(x)=(5x-2)(2x+3)/x-4
4)f(x)=(8x+3)2
5) f(x)=√¯8-5x
6) f(x)-6x(7x-1)2
7) f(x)=-6ex+1
8) f(x) =1n(5x2-3x)
9)f(x)=5x2/ex
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Pre Calculus
08/27/15
.Determine the # of times a month the train must be used so that the total monthly cost w/out the pass is the same as the total monthly cost with the pass.
Train ticket is $2.00.Option of month pass for $18.00 each month.w/pass tickets only$1.25.
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08/26/15
is the function a one to one?
f(x)=1/(x^2−1)
i have to explain if its a one to one and why. i have no idea
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Pre Calculus
08/24/15
On January 1, 2010, an investment was worth $1000. By the end of 2010 the investment had lost 35%. What percent must the investment grow by in 2011 to be worth
On January 1, 2010, an investment was worth $1000. By the end of 2010 the investment had lost 35%. What percent must the investment grow by in 2011 to be worth $1000 by the end of 2011? Round your...
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Pre Calculus
08/20/15
y=59.617+1.18t/1+0.012t
A model that represents the data is given by:
y=59.617+1.18t/1+0.012t
0 less than equal to t less than or equal to 70
where t is the time in years, with t =0 corresponding to 1930.
a)...
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