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April 17, 2014

Homework Help: College

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College Algebra
if x=a is a real zero. (x-a) is a factor. Divide f(x) by (x-a) and see what the quotient is. Maybe you can factor it, maybe not. In this case, not.
Wednesday, March 27, 2013 at 10:29am

College Algebra
How do you use the real zeros to factor f?
Wednesday, March 27, 2013 at 9:58am

College Algebra
Possible rational zeros: ± 1, ± 1/2 f(1) = 2 - 1 + 2 - 1 ≠0 f(-1) = -2 - 1 - 2 - 1 ≠0 f(1/2) = 1/4 - 1/4 + 1-1 = 0 , yeahh, (2x - 1) is a factor Using long division... 2x^3-x^2+2x-1 = (2x - 1)(x^2 + 1) so x = 1/2 or x^2 = -1 x = 1/2 or x = ± i ...
Wednesday, March 27, 2013 at 9:35am

College Algebra
Use the rational zeros theorem to find all the real zeros of the polynomial function. Use the zeros to factor f over the real numbers. f(x)=2x^3-x^2+2x-1
Wednesday, March 27, 2013 at 8:15am

college algebra
Squaring both sides 3 x + 7 = ( 3 x + 5 ) ^ 2 3 x + 7 = 9 x ^ 2 + 2 * 3 x * 5 + 5 ^ 2 3 x + 7 = 9 x ^ 2 + 30 x + 25 0 = 9 x ^ 2 + 30 x + 25 - 3 x - 7 9 x ^ 2 + 27 x + 18 = 0 Divide both sides by 9 x ^ 2 + 3 x + 2 = 0 If you don't know how to solve this equation then in ...
Wednesday, March 27, 2013 at 1:16am

college algebra
√3x+7=3x+5 How do I solve when the answer is -1?
Wednesday, March 27, 2013 at 1:03am

College Gen. Math
X Qtrs. 6X Dimes. (X+6) Nickels. 25*x + 10*6X + 5*(X+6) = 570. 25x + 60x + 5x+30 = 570 90x = 570-30 = 540 X = 6 Quarters. Amount = 6 * $.25 = $1.50.
Tuesday, March 26, 2013 at 10:00pm

College Algebra! help!
complex zeros always come in conjugate pairs so if -i is a zero , so is +i if -2+i is a zero, so is -2 - i the zero of -4 comes from the factor (x+4) the zeros of ±i come from (x^ + 1) the zeros of -2 ± i produce (x-(-2+i))(x - (-2-i) ) = (x^2 + 4x + 5) so a ...
Tuesday, March 26, 2013 at 9:21pm

algebra 10th grade
please help with this problem Your dad is taking Biology as part of the veterinarian program at the local community college. This semester he will spend a total of 40 hours in the biology lab, and he will take notes in class 6 hours per week. Define a variable for the number ...
Tuesday, March 26, 2013 at 8:41pm

College Algebra! help!
Form a polynomial f(x) with the real coefficients having the given degree and zeros. Degree 5; Zeros: -4; -i; -2+i f(x)=a( )
Tuesday, March 26, 2013 at 8:23pm

College Algebra
Form a polynomial f(x) with real coefficients having the given degree and zeros. Degree 5; Zeros: -3; -i; -6+i F(x)=a ( )
Tuesday, March 26, 2013 at 7:14pm

College algebra
Form a polynomial f(x) with the real coefficients having the given degree and zeros. Degree 5; Zeros: -3; -i; -6+i f(x)=a( )
Tuesday, March 26, 2013 at 6:42pm

College algebra
f(1) = 1-2-13-10 ≠ 0 f(-1) = -1 - 2 + 13 -10 = 0 , so x+1 is a factor by synthetic division x^3 - 2x^2 - 13x - 10 = (x+1)(x^2 - 3x - 10) = (x+1)(x-5)(x+2) = 0 for roots x = -1 or x = -2 or x = 5
Tuesday, March 26, 2013 at 6:01pm

College algebra
Use the rationals theorem to find all the zeros of the polynomial function. Use the zeros to factor f over the real numbers. f(x)=x^3-2x^2-13x-10 x=
Tuesday, March 26, 2013 at 5:07pm

English
I don't know what the answer is "supposed" to be, but all of those are potential consequences of plagiarism. I knew a college freshman who inadvertently plagiarized and was suspended from school for a semester. She appealed and that decision was repealed -- but ...
Tuesday, March 26, 2013 at 4:27pm

english
I don't think any of those answers are correct. In the college where I taught, the first three were used every time a student plagiarized; he/she unfortunately didn't believe plagiarism rules would be enforced. I am not sure what 'cancellation' means here, ...
Tuesday, March 26, 2013 at 4:25pm

College A&PII
1.plasma osmolarity distilled waters quantity of salutes is 0 and the patients quantity would be 900 at 3L and 300osm/l. making the pre- equilibrium values of plasma: volume-4 Quantity:900 Concentration(mosm/l):225 since concentraion=Quantity/volume.
Tuesday, March 26, 2013 at 3:34am

college physics
A 30.3-kg child starting from rest slides down a water slide with a vertical height of 10.5 m. (Neglect friction.) (a) What is the child's speed halfway down the slide's vertical distance?
Monday, March 25, 2013 at 10:54pm

Proctology
Hi, I am an 11th grade student beginning to look into some college options. I am interested in pursuing a career in proctology and have been reading some preliminary books on the topic. Can anyone recommend a college or pre-med program that would offer a strong proctology ...
Monday, March 25, 2013 at 8:53pm

college algebra
X^4+x^3=16-8x-6x^2 x^4 + x^3 + 6x^2 + 8x - 16 = 0 you must know the factor theorem to do these look at the constant of 16 if there are factors of the type ( ?x + c) , c must be a factor of 16 so try ±1, ±2, ±4, ... that is, try factors of 16 e.g. let x = 1...
Monday, March 25, 2013 at 8:50pm

college algebra
I'm stuck on 2 problems I know the answers but need to learn to show the work. X^4+x^3=16-8x-6x^2. Answer: -2,1,+-√8 3x^3+4x^2+6=x. (-2,1/3, i√8/3) Please help so I know how to figure these equations out.A big THANKS
Monday, March 25, 2013 at 7:53pm

College algebra
recall that complex roots come in conjugate pairs, so the complete factorization is (x-5)(x+i)(x-i)(x-(-9+i))(x-(-9-i)) (x-5)(x^2+1)((x+9)-i)((x+9)-i) (x-5)(x^2+1)((x+9)^2+1) (x-5)(x^2+1)(x^2+18x+82) x^5+13x^4-7x^3-397x^2-8x-410
Monday, March 25, 2013 at 3:06pm

psychology
It seems like you are looking to correlate sleep times to reaction times. If you will actually be doing the experiment rather than just proposing one, it might be convenient to choose college peers. (I am assuming you are in college.) You might want to do a pilot study with ...
Monday, March 25, 2013 at 2:37pm

College algebra
Form a polynomial f(x) with real coefficents having the given degree and zeros degree 5; zeros: 5; -i; -9 +i f(x)=a
Monday, March 25, 2013 at 1:49pm

College Gen. Math
There are 6 times as many dimes as quarters, and 6 times more nickels than quarters. If you have $5.70, how much money do you have in quarters?
Monday, March 25, 2013 at 12:06pm

College Physics
A child's toy consists of a toy car of mass 0.100kg which is able to roll without friction on the loop-the-loop track shown. The car is accelerated from rest by pushing it with force F over a distance d, then the car slides with a constant velocity until it encounters the ...
Sunday, March 24, 2013 at 10:36pm

College algebra
Find the vertical, horizontal, and qblique asymptotes, if any, for the following rational function. T(x)=x^2/x^4-256
Sunday, March 24, 2013 at 9:34pm

college algebra
b(x) = x^3/(5x^3 - x^2 - 22x) = x^2/(5x^2 - x - 22) , after dividing by x , x≠0 f'(x) = (2x(5x^2 - x - 22) - x^2(10x - 1) )/(5x^2-x-22)^2 to have a vertical tangent, the slope must be undefined, that is the denominator of the above f'(x) must be zero 5x^2 - x - ...
Sunday, March 24, 2013 at 8:32pm

college algebra
determine the vertical asymptotes of the graph of function.g(x)=x^3 diveded by 5x^3-x^2-22x
Sunday, March 24, 2013 at 8:22pm

MA 107 college algebra
(3^2)^5 = 3^10 = 59049
Sunday, March 24, 2013 at 8:14pm

MA 107 college algebra
Factor any difference of two squares, or state that the polynomial is prime. Assume any variable exponents represent whole numbers. 2 - 36 X
Sunday, March 24, 2013 at 7:41pm

MA 107 college algebra
Simplify the expression using the power rule.(3to the power of 2)to the power of 5
Sunday, March 24, 2013 at 7:38pm

MA 107 college?? algebra
√81 = 9 9 - 2 = 7
Sunday, March 24, 2013 at 7:36pm

MA 107 college algebra
Each side of a square is lengthened by 2 inches. The area of this new, larger square is 81 square inches. Find the length of a side of the original square.
Sunday, March 24, 2013 at 7:34pm

College Algerbra
You're very welcome, Eric.
Sunday, March 24, 2013 at 5:16pm

College Algerbra
Thank You so much for your invaluable help and patience with walking me through these problems Ms. Sue, I hope you have a great day!
Sunday, March 24, 2013 at 5:11pm

College Algerbra
Thanks!
Sunday, March 24, 2013 at 5:08pm

college math
number of ways = C(9,2) x C(39,3) = 36(9139) = .... number of committees without restrictions = C(48,5) = 1712304
Sunday, March 24, 2013 at 5:07pm

College Algerbra
yes
Sunday, March 24, 2013 at 5:04pm

College Algerbra
I know right? I almost did not pass my ability to benefit test to get into Barstow College my math skills were so bad. So would the answer be x<_-1.4?
Sunday, March 24, 2013 at 5:01pm

college math
How many different committees can be formed from 9 teachers and 39 students if the committee consists of 2 teachers and 3 students? In how many ways can the committee of 5 members be selected?
Sunday, March 24, 2013 at 4:54pm

College Algerbra
Sorry Mr. Reiny, I guess I should of figured that out since you are so smart at doing the math problems. I do not have an option key on my windows 7 keyboard but I bet there is another way I can do the underline thing. Thanks Again for taking time out of your day to help us ...
Sunday, March 24, 2013 at 4:54pm

College Algerbra
C = 5/9 (-21) I subtracted 32 from 11 (the degrees F). C = -105/9 I multiplied 5/9 times -21 C = -11.67 I divided the numerator by the denominator When the temperature is 77 degrees F, it is 25 degrees C. Work with the formula until you get 25 degrees C.
Sunday, March 24, 2013 at 4:47pm

College Algerbra
I am sorry, but I find it extremely odd that you call these questions "College Algebra" and you don't know what 7 ÷ 5 is . What "college" are you attending ?
Sunday, March 24, 2013 at 4:45pm

College Algerbra
I answer most of the questions on a Mac, where I hold down the "option" key as I press the < There are combinations of key like that on the PC also, I don't have the list handy right now. BTW, I am an old retired guy, not a woman.
Sunday, March 24, 2013 at 4:42pm

College Algerbra
I don't know, -35? I stink at math and all of it's many steps.
Sunday, March 24, 2013 at 4:40pm

College Algerbra
Thanks Reiny, you assumed correct, how did you get the line under the greater than sign? You are a very smart and kind woman to have been such a great help, Thanks!
Sunday, March 24, 2013 at 4:36pm

College Algerbra
So I did what you said but I am not sure how you got to C= 5/9(-21) to C=105/9 So on mine C=(5/9)(77-32) I got C=5/9(-45) I am unsure how you did the math to come to your C=-105/9 answer and then the C=11.67 answer. Please show me those last steps if you do not mind, Thanks ...
Sunday, March 24, 2013 at 4:29pm

College Algerbra
well, what is -7/5 ??
Sunday, March 24, 2013 at 4:23pm

College Algerbra
looking at all those positive numbers on the left, there is no way the inequality sign could have changed. I am assuming your _ < is ≤ ?? .1(.1x + .1) < -.8 times 10 .1x + .1 ≤ -8 times 10 again x + 1 < -80 x≤ -81
Sunday, March 24, 2013 at 4:21pm

College Algerbra
I got the answer x >_ -81, is that correct?
Sunday, March 24, 2013 at 4:07pm

College Algerbra
I tried that and I came up with x< -1.4, is that correct?
Sunday, March 24, 2013 at 4:03pm

College Algerbra
Use the same method I used, except substitute 77 for 11.
Sunday, March 24, 2013 at 3:45pm

College Algerbra
Hint: multiply both sides by 10 and proceed like I showed you in the last one
Sunday, March 24, 2013 at 3:40pm

College Algerbra
multiply each term by 7 to get of fractions -5x - 14 ≥ -7 -5x ≥ 7 x ≤ -7/5
Sunday, March 24, 2013 at 3:39pm

College Algerbra
THE TEMPERATURE ON A SUMMER DAY IS 77 DEGREES FAHRENHEIT.the formula to convert the temperature to degrees Celsius is C = 5/9(F-32) what is the corresponding temperature in degrees Celsius? Sorry Ms. Sue I cut of the top of the screenshot, it is 77 degrees Fahrenheit.
Sunday, March 24, 2013 at 3:39pm

College Algerbra
Solve the inequality. 0.1(0.1x+0.1) _< -0.8
Sunday, March 24, 2013 at 3:24pm

College Algerbra
Solve the inequality. - 5x / 7 -2>-1
Sunday, March 24, 2013 at 3:20pm

College Algerbra
C = 5/9(F-32) C = (5/9) (11 - 32) C = 5/9 (-21) C = -105/9 C = 11.67
Sunday, March 24, 2013 at 3:19pm

College Algerbra
THE TEMPERATURE ON A SUMMER DAY IS // DEGREES FAHRENHEIT.the formula to convert the temperature to degrees Celsius is C = 5/9(F-32) what is the corresponding temperature in degrees Celsius?
Sunday, March 24, 2013 at 3:10pm

math
Mark averaged 60 miles per hour during the 30-mile trip to college. Because of heavy traffic he was able to average only 40 miles per hour during the return trip. What was Mark's average speed for the round trip?
Sunday, March 24, 2013 at 2:37pm

chemistry 2 college
% by mass? 10% means 10 g solute in 100 g solution. That's 10 g solute in (10g solute+90 g solvent) 0.1 = (xsolute)/(xsolute + 50g solvent) Solve for x.
Sunday, March 24, 2013 at 2:04pm

chemistry 2 college
explain how to find the mass of solute in the solution: 50.0g of solvent in a 10.0% NaCl solution?
Sunday, March 24, 2013 at 12:25pm

college algebra
the width is 320-x, so a = x(320-x)
Sunday, March 24, 2013 at 5:18am

college algebra
each side is now 10-2x, and the height is x v = x(10-2x)^2
Sunday, March 24, 2013 at 5:17am

college algebra
let the side of the cut-out square be x inches base is 10-2x by 10-2x, and the height is x Volume = x(10-2x)^2 , where x > 5 , or else the base is negative.
Saturday, March 23, 2013 at 8:46pm

college algebra
Vertex is -b/2a ax^2+by+c=0 or (x2-x1)/(y2-y1)
Saturday, March 23, 2013 at 7:50pm

college algebra
A rectangular box with no top is to be constructed from a 10 in. x 10 in square piece of cardboard by cutting equal square of side x from each corner and then bending up the sides. Write the volume of the box as a function of x.
Saturday, March 23, 2013 at 6:00pm

college algebra
A rectangular box with no top is to be constructed from a 10 in. x 10 in square piece of cardboard by cutting equal square of side x from each corner and then bending up the sides. Write the volume of the box as a function of x.
Saturday, March 23, 2013 at 5:31pm

college algebra
A roll of 640 feet of chicken wire is used to enclose a rectangular vegetable garden.Express the area A of the garden in terms of its length (x)
Saturday, March 23, 2013 at 5:19pm

college algebra
A rectangular box with no top is to be constructed from a 10 in. x 10 in square piece of cardboard by cutting equal square of side x from each corner and then bending up the sides. Write the volume of the box as a function of x.
Saturday, March 23, 2013 at 4:58pm

College??? math
4.5/6 = 8/x Cross multiply and solve for x. 4.5x = 48 x = 10 2/3 cup
Saturday, March 23, 2013 at 4:55pm

college algebra
A roll of 640 feet of chicken wire is used to enclose a rectangular vegetable garden.Express the area A of the garden in terms of its length (x)
Saturday, March 23, 2013 at 4:42pm

College math
Rebekah's recipe for 41/2 dozen cookies call for 6 cups of sugar. How many cups of sugar are needed to make 8 dozen cookies?
Saturday, March 23, 2013 at 4:23pm

can some1 plz recheck my answers
1.is B. It has a specific goal to accomplish: earning college degree. C is the beginning of a goal: working on research paper, but doesn't say paper will be completed, therefore it's not specific goal. 2.I agree that it is C. 3. is C. Although, the other 3 answers are ...
Saturday, March 23, 2013 at 9:48am

psychology
2. Last week, Roger suddenly quit his job. He told his family he had decided to learn carpentry. He purchased a truckload of wood and nails, which now sits in his driveway because he changed his mind and decided to enroll in a school for massage therapy. The school confirms ...
Friday, March 22, 2013 at 9:21am

college
A solid is known to be either BaCO3 or CaCO3. It is dissolved in 6 M acetic acid. A pale yellow precipitate forms when K2CrO4 solution is added. The subsequent flame test with that precipitate shows an orange-red color. Which cation is present? Briefly explain
Friday, March 22, 2013 at 12:28am

college stats
Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportions/probabilities related to the Z scores.
Thursday, March 21, 2013 at 12:55pm

college algebra
evaluate f(x) at x = -1 f(-1) = -1+4+2-3 = 2 it's not zero, so (x+1) is not a factor of f(x)
Thursday, March 21, 2013 at 12:36pm

college algebra
x^3+4x^2-2x-3 ; x+1 factor theorum to decide whether or not second polynomial is a factor of the first.
Thursday, March 21, 2013 at 8:01am

college stats
iN manoa Valley on the island of Oahu Hawaii the annual rainfall averages 43.6 inches with a standard diviation 7.5 inches. for a given year, find the probability that the annual rainfall will be..(solve for a,b,and c) show work a)more than 53 inches b)less than 28 inches c)...
Thursday, March 21, 2013 at 12:49am

College Chemistry
1927
Wednesday, March 20, 2013 at 10:02pm

College Math
substitution is a method, not a problem (though it appears to be a problem for you! :-) taking the first equation, solve for x or y: x = (16+3y)/2 now "substitute" that into the other equation 5(16+3y)/2 + 2y = 21 80+15y + 4y = 42 19y = -38 y = -2 so, x = (16-6)/2 = ...
Wednesday, March 20, 2013 at 11:50am

college- find domain and range
Looks good, except that the domain and range probably should be a closed intervals (<= rather than <) I guess that depends on how you interpret "between"
Wednesday, March 20, 2013 at 11:46am

College Math
I need help solving these problems by using the substitution problem 2x-3y=16 5x+2y=21
Wednesday, March 20, 2013 at 11:28am

college- find domain and range
y= X^2 + X - 500/10 and y is the number of milliliters of fuel consumed per second and X is the speed of the engine in revolutions per minute. If the engine operates between 100 revolutions per minute and 400 revolutions per minute what is the domain and range Is this correct...
Wednesday, March 20, 2013 at 11:12am

college physics
would it just be 4.20N??
Wednesday, March 20, 2013 at 1:32am

college physics
If the initial tension in the string is (2.10+/- 0.02)N, what is the tension that would double the wave speed?
Wednesday, March 20, 2013 at 1:28am

college chemistry
I bet if it didn't have the density, it had the specific gravity. You can use that to determine the density.
Tuesday, March 19, 2013 at 10:02pm

college chemistry
for my lab i used 2.0mL of NaOH solution and it doesnt have a density in (g/mL)... is there still a way to calculate the moles to it? unless there is a density to NaOH
Tuesday, March 19, 2013 at 9:33pm

English
Please help with this question that has been bothering me! I take bio college class and we have graduate/student assistant for labs & when taking an exam. The professor is never there during those sections.Due to my low exam results,I feel I'm not being graded on fairly ...
Tuesday, March 19, 2013 at 8:36pm

college physics
Ep = mg*h = 230*9.8*125 = 281,750 Joules Ek = Ep = 281,750 Joules. V^2 = Vo^2 + 2g*h V^2 = 0 + 19.6*125 = 2450 V = 49.5 m/s.
Tuesday, March 19, 2013 at 12:27pm

Arithmetic
A box in a college bookstore contains books, and each book in the box is a history book, an English book or a science book. If one-third of these books are history books and one-sixth are English books, what fraction of the books are science books? A. 1/3 B. 1/2 C. 2/3 D. 3/4...
Tuesday, March 19, 2013 at 10:24am

Arithmetic
A box in a college bookstore contains books, and each book in the box is a history book, an English book or a science book. If one-third of these books are history books and one-sixth are English books, what fraction of the books are science books?
Tuesday, March 19, 2013 at 10:23am

college physics
Archimedes's principle states that the upward buoyant force exerted on a body immersed in a fluid is equal to the weight of the fluid the body displaces. In this case. 2.8 cc of water is displaced and its weight 2.8 g. Hence the net buoyant force = 2.8 gf Now the density ...
Tuesday, March 19, 2013 at 3:53am

college algebra
There are two equations there. In the first one, let y = x^2 and solve the quadratic. 9y^2 -13y +4 = 0 (y -1)(9y-4) = 0 y = 1 or 4/9 x = sqrt(y) = +/-1 and +/-2/3 In the second one, let y = x^3 and again solve the quadratic.
Tuesday, March 19, 2013 at 3:02am

college algebra
I am solving the first one.....second one you can try yourself. so 9x^4+4=13x^2 this can be written, x^2*(9x^2-13)=-4 as x^2 is always +ve so to be -ve, (9x^2-13)<0 we see that -(sqrt(13)/3)<x<(sqrt(13)/3) it comes as -1.2<x<1.2 next we will see if there is some...
Tuesday, March 19, 2013 at 2:54am

college algebra
Solve, what is the easiest way to solve this equation? 9x^4+4=13x^2 and x^6-19x^3=216 Thanks, in advance..
Tuesday, March 19, 2013 at 12:08am

college physics
fn=(n/2L)v It is a direct relationship. If v increases by a factor of 100, fn increases by the same factor.
Monday, March 18, 2013 at 11:06pm

college physics
for the resonance frequencies: fn=nv/2L If the speed (v) doubles my fn will also doubles ? why?
Monday, March 18, 2013 at 10:03pm

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