1,063 Answered Questions for the topic Pre-Calculus
Pre Calculus
03/18/15
if $8000 is invested in a 2.5% account for 10 years compounded quartly how long would it take for the account to double?
I don't know how to do this question
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Pre Calculus
03/18/15
if the tires of a vehicle are rotating 100 times per minute, with a radius of 1 1/2 ft, how fast is the vehicle moving?
I really don't know how to do this? help
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Pre Calculus
03/17/15
eccentricity
what is the eccentricity of:x^2/9 + y^2/81 = 1 ?(x+2)^2/36 + (y-4)^2/11 = 1?
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Pre Calculus
03/16/15
Find a value of x for a box with V=1000 and other constraints
A box with a square base and a volume of 1000 cubic inches is to be constructed. The material for the top and bottom of the box costs $4 per 100 square inches, and the material for the sides costs...
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Pre Calculus
03/10/15
4+12^10u=10
I am so confused, I have tried doing it so many times
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Pre Calculus
03/10/15
If $6,000 is invested in a 4.5% account for 10 years compounded quarterly how much money is there total?
I tried doing it but I'm not sure if the answer I got is correct.
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Pre Calculus
02/24/15
Solve for 7v^2+2v-4=0
I know I could use the quadratic equation but I want to know if what I got as answer is correct
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Pre Calculus
02/24/15
Factor Completely: x^4-15x^3+81x^2-185x+150
I'm confused on how to do this question
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Pre Calculus
02/24/15
Find the vertex of the parabola defined by y=x^2-28x+75
I did it but I want to make sure if I got the correct answer
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Pre Calculus
02/24/15
Divide the polynomial: 5x^4+25x^3+32x^2+23x^+8/ x^2+4x+2
I really need help
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02/23/15
What is the difference in temperature between the metal and plastic part after 10 mins?
An object which is one part metal and other part plastic brought in from outside (10 degrees F) to inside (80 degrees F). After a minute the metal part is 20 degrees F and plastic part is 18...
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02/22/15
A rectangular box without a top is to be constructed with a base that is twice as long as it is wide. The box has a volume of 12 ft3 .
The box has a volume of 12 ft3 . Find a function that models the surface area A of the box in terms of the width x.
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Pre Calculus
02/19/15
Use either synthetic to divide P(x) by D(x), and express P in the form P(x) = D(x) · Q(x) + R(x). P(x) = x^4 - x^3 + 5x + 1, D(x) = x^2 + 4
Im so lost
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Pre Calculus
02/19/15
If the polynomial function P has real coefficients and if a + bi is a zero of P, then __________ is also a zero of P.
Can someone fill it in
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Pre Calculus
02/19/15
Fill in the blank: If a is a zero of multiplicity m of the polynomial P, then ________must be a factor of P(x) when we factor P completely.
Help me I'm confused
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Pre Calculus
02/19/15
What is the horizontal asymptote y of r(x) = (x + 1)(x - 2)/(x + 2)(x - 9)?
I need help please!
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Pre Calculus Trigonometry
02/17/15
Trig Identities
Prove the identity: tan^2(x)-sin^2(x)= tan^2(x)sin^2(x)
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Pre Calculus
02/12/15
Divide the polynomial x^5-1/x-1
I tried doing it but I come up with something so wrong and I need help
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