12/30/15

Find the values of the zeros of a polynomial
QUESTION: Two of the zeros of x4 - 12x3 + 59x2 - 138x + 130 are a+ib and a+2ib. Find a and b and hence, factorise the polynomial over the real field.    I assume that you just need to make... more
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12/30/15

Finding unknown values and solving Q(x) = x^3 - 6x^2 + ax + b
Question: The polynomial Q(x) = x^3 - 6x^2 + ax + b has one zero (1 - i√5), where a and b are real. Find the values of a and b and solve the equation for Q(x) = 0. Note that 'i' represents the... more
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12/29/15

Evaluate the indefinite integral. (Remember to use ln(|u|) where appropriate.)
Evaluate the indefinite integral. (Remember to use ln(|u|) where appropriate.)   ∫  dx/(tx+k)  t≠0
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12/28/15

A high-speed bullet train accelerates and decelerates at the rate of 10 ft/s2. Its maximum cruising speed is 90 mi/h.
A high-speed bullet train accelerates and decelerates at the rate of 10 ft/s^2. Its maximum cruising speed is 90 mi/h.   (a) What is the maximum distance the train can travel if it accelerates... more
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12/28/15

What happens when a cone is immersed in a cylinder?
A cylindrical container of base radius 8 cm is filled with water to a depth of 10 cm. (The height of the container is more than 10 cm). A solid right circular cone of base radius 6 cm and height h... more
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12/28/15

Can't solve this!!I tried to solve this couple of times.Please direct me!!
4/x+2 =3x/x-1 -3    Ans:x=-2,x=-3,x=-4,x=-5            
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12/27/15

Relative Extrema
 list the relative extrema and inflection points for f(x)=(x3/3)+6x2+1
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12/23/15

Rolle's Theorem & Second Derivative Test Question
Okay, so when going over some problems to prepare for a test that is coming up soon, I have these two questions im not sure on. I know these types of questions will be on the test, so I need help... more
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12/18/15

Two sides of a triangle are 15 and 31. Can the third side be 45? Why or why not?
This is for my Geometry Exam. I need it urgent. I believe it was no because of the Pythagorean Theorem, but others say there is another way with another method. Someone please help.
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12/17/15

I have 5 questions I need help with. Please and thank you for everyone who can help.
I have 5 questions I need help with. Please and thank you for everyone who can help.1. Write the possible products and determine if the reaction will occur. Include which products are insoluble and... more
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12/17/15

Calculate the empirical formula
Calculate the empirical formula of the following compound containing 15.8% carbon and 84.2% sulfur
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12/14/15

A 0.025 kg bullet is shot out of a 0.45 m rifle barrel. The force on the bullet is 3600 N. What is the muzzle speed of the bullet?
Newtons Law Of Motion 
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12/14/15

A 0.010 g bullet travelling at 230 m/s enters a block of clay. The bullet is stopped in a distance of 0.30 m. What force was applied to the bullet by the clay?
Newtons Law 
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12/14/15

Pre-laboratory excercises
The thermol decompostion of calcium carbonate produces two by-products, calcium oxide (also known as quicklime) and carbon dioxide. Calculate the volume of carbon dioxide produced at STP from the... more
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12/13/15

How much work must be done on a 20-kg go-cart to increase its speed from 5 m/s to 10 m/s?

A. 250 J B. 750 J C. 1,000 J D. 100 J
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12/10/15

Please help solve the below word problem
1 step stair uses 1 block 2 step stairs uses 3 blocks 3 step stair uses 6 blocks how many does 10 step stair use? how many blocks for a 37 step stair? how many blocks will be needed to build a... more
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12/07/15

Help with this word problem
A total of $10,000 is invested in two accounts. One account earns 6% per year. And the other earns 4% per year. If the total interest in the first year is $560. How much is invested in each account?
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12/07/15

Which bullet will hit the ground first?
A bullet is shot horizontally out of a gun at 200 per hour and an identical bullet is dropped from the same height at the same time. Which bullet will hit the ground first?
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12/07/15

a farmer has two rectangular gardens from 200 yards of fencing, they are planted beside each other so they share a side.
two rectangular gardens are made from 200 yards of fencing. the gardens are planted beside each other so they share a side. If the farmer wants the total area to be as large as possible, what... more
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12/07/15

Precalc fountain question
fountain 1 has a water jet that sprays water from a location on a wall 12ft above the ground. The water reaches it's maximum height at a point 20 ft above ground and 4 ft from the wall. Write a... more
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12/07/15

Write a nuclear equation for these two processes
When isotope 27 Al is irradiated with alpha particles the                     13 products from each aluminum nucleus are a neutron and a nuclide that emits positrons to give the stable isotope 30... more
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12/06/15

What is the derivative of h(x)=x(sin(x))^x?
 What is the derivative of h(x)=x(sin(x))^x?
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12/06/15

trigonometry
find all solutions in the interval [0,2pi)2sin^2 theta + sin theta = 0Please help me. thank you.
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12/06/15

Does the following series converges or diverges?
∞ ∑ (n2-3n+5)/(n3+4n-1) n=1
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12/05/15

Find the limit of lim (x --> 0) (tan(6t)) / sin(2t)
Find the limit of   lim (x --> 0) (tan(6t)) / sin(2t)     ANSWER:  3 #41, p197
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