Saturday
December 10, 2016

# Posts by Brandon

Total # Posts: 1,055

calculus
product rule. F(x)= f(x)*g(x) F'(x)= f'(x)g(x)+f(x)g'(x) so your answer would be 3x^2(3-x)^4-4x^3(3-x)^2
March 25, 2012

calculus
mk, i graphed the bounded region and saw my mistake. but i got 17/15 for my answer instead. so did my professor still do it wrong? or did i miss some small detail?
March 25, 2012

calculus
Evaluate the integral ∫∫∫2xzdV bounded by Q. Where Q is the region enclosed by the planes x + y + z = 4, y = 3x, x = 0, and z = 0. Answer=16/15 Is this answer correct? cause i've tried doing this problem a bunch of ways and i never even get close to 16/15...
March 25, 2012

Calculus
I'm having trouble reversing the order of integration of ∫∫dxdy from a=0 to b=2(3)^(1/2) for x and c=y^(2/6) to d=(16-y^2)^(1/2) for y. I graphed the region of integration and that still doesn't really help me. i got approximately 7.9 for the ∫∫...
March 21, 2012

college physics
121.24 m/s
March 19, 2012

math
how many inches high is the box that holds 700 cubic inches?
March 16, 2012

Physics
a 1.0 N-weight is hanging at rest as shown. In each case, write in the magnitude of the unknown force. a) chain with a weight of 2.5 N has a 1.0 N hanging weight b) chain with a weight of .5 N has a 1.0 N hanging weight c) stretched elastic band with negligible weight has a 1....
March 11, 2012

geometry
the endpoints of AB are A(9,4) and B(5,-4) the endpoints of its image after a dilation are A1(6,3) and B1(3,-3) explain how to find the scale factor. Is there someone that can help me with this problem and explain foe me?
March 7, 2012

geometry
A blueprint for a house has a scale factor of 1:35. A wall in the blueprint is 3inches. What is the length of the actual wall? Can someone explain how to figure scale factor?
March 6, 2012

geometry
Thank you that is what I thought but then I was second guessing myself on changing to centimeters.
March 6, 2012

geometry
A microscope shows you an image of an object that is 80 times the actual size. Therefore, the scale factor of the enlargement is 80. An insect has a body length of 7 millimeters. What is the body length of the insect under the microscope? I know it's 560, but not sure if ...
March 6, 2012

geometry
Which type(s) of symmetry does the uppercase letter H have? my answer i believe is reflectional symmetry Which type of symmetry is shown by the lowercase letter w? my answer i believe is rotational symmetry. Could someone please check and explain.
March 5, 2012

geometry
What is the image of A(3,-1) after a reflection, first across the line y=3, and then across the line x=-1? I believe (3,-1) but not real sure, doesn't the x stay the same?
March 5, 2012

geometry
The coordinates of the vertices of triangle CDE are C(1,4), D(3,6), and E(7,4). If the triangle is reflected over the line y=3, what are the coordinates of the image of D? I think (3,-6), but not real sure.
March 5, 2012

geometry
Thank you I see what I did wrong.
March 5, 2012

geometry
In the graph below, point D is reflected across the y-axis. What are the coordinates of it's image? The graph looks like D is below the x-axis to the right 3 places from y-axis and down 1 place from x-axis. So would my answer be (3,1)?
March 5, 2012

Math
Hello Diana, Remember the three basic rules when dealing with logs: n * log(A) = log(A^n) log(A) + log(B) = log(A*B) log(A) - log(B) = log(A/B) Also note that log, and ln are both logarithms and interchangable, just with base 10 for log and base of nature exponent e for ln. ...
March 2, 2012

trig
Find the value of theta (in radians) corresponding to the point (6,-8)
February 29, 2012

Math
Matt has a deck of 20 cards. Of these 15 are numbers cards and 5 face cards. What is the probability of drawing a number card from the whole deck?
February 26, 2012

PHYSICS-electricity & magnetism
-e and +e respectively
February 24, 2012

PHYSICS-electricity & magnetism
An electric field exits inside a fluorescent tube of diameter 3.00cm. In one second, 2.00x10^18 electrons and 0.50x10^18 positive ions pass through a certain cross section. What is the current in the tube?
February 24, 2012

Physics
Three identical charges of 2.0 uC are placed at the vertices of an equilateral triangle, 0.15m on a side. Find the net force acting on each angle.
February 22, 2012

geometry
A slide 4.1 meters long makes an angle of 35 degrees with the ground. To the nearest tenth of a meter how far above the ground is the top of the slide. Could someone please explain don't want just answer would like to know how to do the work.
February 19, 2012

geometry
A large totem pole in the state of Washington is 100ft tall. At a particular time of day, the totem pole casts a 249ft-long shadow. Find the measure of <A to the nearest degree. Can someone please explain
February 18, 2012

geometry
4.1 is opposite the right angle and 35 degrees is on the longer leg and x is on the shorter leg. Does that seem to help? So is this still the same way to work the problem out? Thanks so much for your help!!
February 18, 2012

geometry
A slide 4.1 meters long makes an angle of 35 degrees with the ground. To the nearest tenth of a meter bow far above the ground is the top of the slide? sin=35 x/4.1 x=4.1 sin=35 not sure how to do this
February 18, 2012

geometry
The length of the hypotenuse of a 30-60-90 triangle is 12. Find the perimeter.
February 18, 2012

science
displacement vectors of 5km north, 3km east, 2km south, and 3km west combine to a total displacement of? 3km north 13km west 0km 2km south I think 13km west
February 17, 2012

geometry
An equilateral triangle has an altitude of 15m. What is the perimeter of the triangle. Could someone please explain how to find perimeter. I believe the answer to be 60 sq rt 3m
February 13, 2012

fullerton
A vertical container with base area measuring 12 cm by 18 cm is being filled with identical pieces of candy, each with a volume of 50.0 mm3 and a mass of 0.0200 g. Assume that the volume of the empty spaces between the candies is negligible. If the height of the candies in the...
February 10, 2012

phyhsical science
how much time is needed for a car to accelerate from 6.5 m/s to a speed of 22 m/s if the acceleration is 3.0 m/s/s?
February 7, 2012

If you put one whole and put it next to 1/5 then it would be bigger,so it would be 1 whole and 1/5 is greater than 1/4.
February 2, 2012

geometry
find the geometric mean of 275 and 11 275/x=x/11 x^2= 3025 x=sq rt 3025 now I'm not sure what to do.
February 1, 2012

math
Beth and her grandmother paid \$23.00 for tickets to a play. An adult ticket costs \$6.50 more than a child's ticket. What was the cost of Beth's ticket?
January 27, 2012

physics
If i have three resistors in parallel and series, then the first resistor (series) and the second resistor (parallel) should have the same average of the total voltage? is this true? i think it should
January 26, 2012

physics
If i have three resistors in parallel and series, then the first resistor (series) and the second resistor (parallel) should have the same average of the total voltage? is this true? i think it should
January 26, 2012

geometry
how do i figure out the length of one side of a triangle if I know one side is 40 meters, and the angle on one side is 90 degrees and the other side is 42 degrees?
January 26, 2012

chemistry
A copper foil is made from copper, absolutely free of impurities. Which term or terms could be used to describe this sample of copper
January 26, 2012

geometry
Can someone explain how you get the answer b/15. Given the proportion a/b=8/15, what ratio completes the equivalent proportion a/8=?/?. I'm not sure if there is an equation or step you use to get the answer.
January 24, 2012

physics
suppose that resting on your non-conducting desktop is a tiny piece of paper (m=0.08g) that has a charge of 4x10^-10C. You bring your comb 3 cm away from it and the paper jumps up to the comb. Give an approximate value for the charge of the comb. Does the comb carry an excess ...
January 20, 2012

English
In the story "The Pig" written by Barbara Kimenye can someone help me figure out what she introduces, develops, and how she resolves a major conflict. I believe it has something to do with not believing retirement was for him and his grandson brings him a pig which ...
January 11, 2012

English
I had some other questions posted do you think someone might be able to check my answers? They are posted by Jason, Kevin, and Robert, these are my brothers, they were trying to help me out. And Thanks again.
January 10, 2012

English
Thank you so mush!
January 10, 2012

English
Can someone please check my answers? 1)Passive voice adds directness to your writing. a)true b)false* 2)You should avoid unnecessary shifts in verb tense when writing. a)true* b)false
January 10, 2012

English
I could really use some help not very good at English but I am trying. Could someone please help.
January 9, 2012

English
1)Read the passage below from "No Dogs Bark" and select the one that best represents imagery in the story. a)"Now and then he seemed to sleep." b)"The old man backed ou to a thick wall and shifted load but didn't let it down fron his shoulders.&...
January 9, 2012

history
Quick strikes and movements during the darkness were used by: a. Francis marrion b. Peter francisco c. Crispus Attucks d. Caeser Bacon I think its b, not sure
December 6, 2011

history
The prussian soldier who helped train Continental soldiers was a. Marquis de Lafayette b. Baron Friedrich von Steuben c. George Rogers Clark d. Thaddeus Kosciuszko guess is B but not sure
December 6, 2011

Math
28 inches
December 6, 2011

history
The attack on fort Ticonderoga gave the colonists valuable a. ammunition b. prisoners of war c. intelligence information d. british war maps I believe its c but not so sure
December 6, 2011

Chemistry
How do you calculate the [H^+] and where did you get the -1E-6 from?
November 26, 2011

Chemistry
The pH of 0.15 mol/L of hydrocyanic acid is 5.07. Calculate Ka of hydrocyanic acid.
November 26, 2011

chemistry
Actually, if I may revise, How do I find n?
November 26, 2011

chemistry
Rather than criticize, I actually have a legitimate question about the problem posted above. DrBob, the structural formula for propene is C3H6 if I am not mistaken. But what I don't understand is how to incorporate that into PV=nRT?
November 26, 2011

statistics
3. Use the following SAT score data to answer the questions that follow. Gender Verbal Math M 600 690 M 610 550 F 490 800 F 680 610 M 520 540 F 680 660 M 650 700 M 600 560 F 550 560 M 490 390 F 530 530 M 560 560 F 630 590 F 510 520 M 710 740 F 550 560 M 690 620 M 700 700 M 540...
November 17, 2011

English
2 questions what is the word down in this sentence? 1. Samantha rode her bike the hill. noun or adjective or adverb or verb 2. What is the word sky in this sentence? Suddenly, a rainbow appeared in the sky.
November 14, 2011

math
one is addition and one multiplication.
November 10, 2011

math
Interest is calculated with the following formula I=Prt What is the future value ( present value + interrst ) of this account? Present value is \$600; interest is 6% Term is 12 years ( Enter your answer as dollars and cents. )
November 10, 2011

science
The mass would be the same
November 10, 2011

math
Thank you Steve
November 10, 2011

math
A team is made up of 6th 7th and 8th graders in the ratio of 234. How many 6th graders will be on a 36member team?
November 10, 2011

world history
what are 2 cause and effects of queen elizebeth the 1st dying
November 8, 2011

math
Meant to say 6 3/7 - 7 1/7 = - 1 2/7
November 6, 2011

Algebra 2
x^4n - y^6n+2. Factor. Thanks.
November 2, 2011

Algebra 2
(x^2 + 6x + 9)-y^2 Factor. Thanks.
November 2, 2011

You add like terms. (3a+a)+(2a^2-a^2)= 4a+a^2
November 2, 2011

science
What would happen if blood entering the heart mixed with blood leaving the heart?
October 27, 2011

A rectangular room has a perimeter of 36 feet.One side is 10 feet long.How long is side s?
October 26, 2011

A rectangular room has a perimeter of 36 feet.One side is 10 feet long.How long is side s?
October 26, 2011

Chemistry
In a certain experiment, when light of wavelength 570 nm is directed on to the photocell, electrons are emitted at the rate of 6.6 10-13 Coulombs/sec. Assume that each photon that impinges on the photocell emits one electron. How many photons per second are striking the ...
October 24, 2011

Chemistry
In a certain experiment, when light of wavelength 570 nm is directed on to the photocell, electrons are emitted at the rate of 6.6 10-13 Coulombs/sec. Assume that each photon that impinges on the photocell emits one electron. How many photons per second are striking the ...
October 24, 2011

statistics
Listed below are the FICO scores of a simple random sample of United States adults. Do these scores appear to come from a population that has a normal distribution? Explain how you arrived at your answer and defend your conclusion. 708 713 781 809 797 793 711 681 768 611 698 ...
October 23, 2011

statistics
Listed below are the FICO scores of a simple random sample of United States adults. Do these scores appear to come from a population that has a normal distribution? Explain how you arrived at your answer and defend your conclusion. 708 713 781 809 797 793 711 681 768 611 698 ...
October 23, 2011

Math
where would you put the parentheses to make this true 124-6 x 0 + 15 = 34
October 19, 2011

hvac
5 lbs x 144 Btu / lbs = 720 Btu
October 17, 2011

Physics
A boy starts at rest and slides down a frictionless slide as in the figure below. The bottom of the track is a height h above the ground. The boy then leaves the track horizontally, striking the ground a distance d as shown. Using energy methods, determine the initial height H...
October 17, 2011

Scientists do their experimental tests more than once so they effects of chance errors.
October 16, 2011

statistics
The deli special lunch offers a choice of three different sandwiches, four kinds of salads, and five different desserts. Use the multiplication rule of counting to determine the number of different lunches that can be ordered using the deli special lunch option, if each ...
October 9, 2011

Algebra
m^2-5m-14=0. Solve using quadratic formula. Thanks.
September 28, 2011

Ebony is a dark wood that has a density of 1.2g/cm cubed and water has a density of 1.0g/cm cubed. Will a block of ebony float in water?
September 22, 2011

Biology
What is the 5th characteristic for all living things? I already have: 1. Heredity 2. Metabolism 3. Reproduction 4. Homeostasis
September 21, 2011

physics
John kicks a soccer ball 12 m/s at an angle of 40.0 degrees above the horizontal. What is the ball's maximum height? Where does the ball land?
September 18, 2011

Algebra 2
[3y+6]>or equal to 21 If you could put this in set notation, graph, and interval notation that would be great. Thanks
September 17, 2011

Algebra
The XYZ Car Rental Agency charges a flat rate of \$29 per day plus \$.32 per mile driven. Write an algebraic expression for the rental cost of a car for x days that is driven y miles.
September 14, 2011

math
How to choose the correct symbol to place between decimal and fraction.
September 13, 2011

Math, topology
How do I figure out this question...a farmer has a square field containing 11 oak trees. She wants to divide the field into 11 enclosures so that each has one shaded tree for her cattle. Divide the field using four straight lines to indicate where the fences will be built.
September 12, 2011

how would a drought effect Florida's orange economy?
September 12, 2011

chemistry
(Ksp of CuBr = 5.0 ✕ 10^−9.)
September 11, 2011

science
define the equivalents of one mole of glucose; L of solution, molecules of glucose, etc.
September 8, 2011

is it 17.5 ms
August 25, 2011

trig
what is the reference angle for 17 pi/12?
August 23, 2011

Algebra
Slim Johnson was usually the best free-throw shooter on his basketball tam. Early in the season, however, he had made only 9 of 20 shots. By the end of the season, he had made all the additional shots he had taken, thereby ending with a season reacord of3 : 4. How many ...
August 11, 2011

Algebra
The numberator of a fraction exceeds the denominator by 3. If 3 is added to the numerator and 3 is subtracted from the denominator, the resulting fraction is equal to 3/2. Find the original fraction.
August 11, 2011

Algebra
What number must be added to the numerator and denominator of the fraction 7/19 to make the resulting fraction qual to 3/4?
August 11, 2011

Math
The numerator of a certain fraction is 3 times the denominator. If the numerator is decreased by 1 and the denomenator is increased by 2, the value of the resulting fraction is 5/2> Find the fraction.
August 11, 2011

Algebra
The numerator of a fraction exceeds the denominator. If 3 is added to the numerator and 9 is subtracted from the denominator, the new fraction is equal to 5/2. Find the original fraction.
August 11, 2011

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