Tutors Answer Your Questions about Polynomials-and-rational-expressions (FREE)
Question 52634: I am having trouble in math. See, the school combined algebra 1 and geometry B together in one class and its difficult to catch on. Do you know of any formulas that may help? The teacher erases things before we get a chance to write them down.
Click here to see answer by checkley71(8405)   |
Question 53181: The degree three polynomial f(x) with real coefficients and leading coefficient 1, has -3 and 4i among its roots. Express f(x) as a product of linear and quadratic polynomials with real coefficients.
Possible solutions:
a.) f(x)=(x+3)(x^2+16)
b.) f(x)=(x+3)(x^2+8x+16)
c.) f(x)=(x+3)(x^2-8x+16)
d.) f(x)=(x-3)(x^2+16)
Click here to see answer by venugopalramana(3286)  |
Question 53227This question is from textbook Beginning Algebra
: Text-Book is "Beginning Algebra" with applications by Aufmann/Barker/Lockwood
Factoring polynomials of the Form ax2 + bx + c ???
how do I solve these problems?
15.) 6t cubed - 11t + 4,
17.) 8x cubed + 33x + 4,
19.) 3b cubed - 16b + 16,
21.) 2z cubed - 27z - 14,
23.) 3p cubed + 22p - 16,
25.) 6x cubed - 17x + 12,
This question is from textbook Beginning Algebra
Click here to see answer by rapaljer(3620) |
Question 53592: I am having a hard time with this question.
Use the geometric sequence of numbers 1, 2, 4, 8,…to find the following:
a) What is r, the ratio between 2 consecutive terms?
b) Using the formula for the nth term of a geometric sequence, what is the 24th term?
c) Using the formula for the sum of a geometric series, what is the sum of the first 10 terms?
Thanks for your time.
Click here to see answer by stanbon(26259) |
Question 53704: I'm attempting to solve:
4/5 x - 2/3 = 3x + 1 /2
I came up with an answer of -5/3, but it doesn't check properly.
I came up with - 5/3 by multiplying both sides by 30, that left me with 24x - 20 = 45x + 15, subtracted 20 from sides and then subtracted 45x from both sides and was left with -21x = 35. Divided both sides by -21 and got - 35/21, which simplifies to - 5/3. However, when I attempt to check the problem by plugging in that answer it is incorrect.
Any help here would be great!
Karen
Click here to see answer by stanbon(26259) |
Question 53590: I am having a hard time answering this problem. It is a 3 part question. And all of it is confusing me.
A traveling salesman (selling shoes) stops at a farm in the Midwest. Before he could knock on the door, he noticed an old truck on fire. He rushed over and pulled a young lady out of the flaming truck. Farmer Brown came out and gratefully thanked the traveling salesman for saving his daughter’s life. Mr. Brown insisted on giving the man an award for his heroism.
So, the salesman said, “If you insist, I do not want much. Get your checkerboard and place one penny on the first square. Then place two pennies on the next square. Then place four pennies on the third square. Continue this until all 64 squares are covered with pennies.” As he’d been saving pennies for over 25 years, Mr. Brown did not consider this much of an award, but soon realized he made a miscalculation on the amount of money involved.
a) How much money expressed in dollars would Mr. Brown have to put on the 32nd square?
b) How much money expressed in dollars would the traveling salesman receive in total if the checkerboard only had 32 squares?
c) Calculate the amount of money necessary to fill the whole checkerboard (64 squares). How money expressed in dollars would the farmer need to give the salesman?
Thanks for your time.
Click here to see answer by stanbon(26259) |
Question 53696: Here is the question:
Tropical pools sells an aboveground model for p dollars each. The monthly revenue form the sale of this model is given by
R=-0.08p2 + 300p.
Revune is the porduct of the price p and the demand (quantity sold)
a) Factor out the price on the right hand side of the formula
b) what is an wzpression for the monthly demand?
c)What is the monthly demand for this pool whent he price is $3000
Dear Tutor, I do not even know where to start on this question,so could you please help me.I will wait for your answer. Thanks The textbook is from the University of phoenix, special edition seris.
Click here to see answer by stanbon(26259) |
Question 53710: This question is from the University of Phoenix math book:
Decreasing cube. Each of the three dimensions of a cube with a volume of y3 cubic centimeters is decreased by a whole number of centimeters. Of the new volume is y3 - 13y2 + 54Y - 72 cubic centimeters and the new width is y - 6 centimeters, then what are the new length and height?
Click here to see answer by ankor@dixie-net.com(6691)  |
Question 54014This question is from textbook Beginning Algebra
: Please help me with this word problem. I've been trying for hours.
The U.S. population in 1990 was approximately 250 million, and the average growth rae for the past 30 years give a doubling time of 66 years. The formula for the U.S. then becomes P(in millions)=250 * 2^(y=1990)/66
What will the population of the U.S. be in 2025 if this growth rate continues?This question is from textbook Beginning Algebra
Click here to see answer by stanbon(26259) |
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