Sunday
November 23, 2014

Posts by JACOB


Total # Posts: 668

chemistry
a mixture of 39.8g containing potassium chloride and potassium trioxochlorate (v) upon heating, the residue weighed 28.7g what is the percentage mass of potassium chloride in the residue?
November 21, 2014

math
2.joe was making mixed nuts.he used 2 1/4 pounds of pecans and 3 1/5 pounds of cashews.how many pounds of mixed nuts did joe make? A.5 17/40 B.5 2/9 C.5 1/2 D.5 9/20
November 20, 2014

art
im sure its c
November 20, 2014

science
how do i find the percent. then lable it on a smaller diagram
November 12, 2014

College physics
In this problem you will estimate the heat lost by a typical house, assuming that the temperature inside is T(in) = 20 degrees celcius and the temperature outside is T(out) = 0 degrees celcius. The walls have fiberglass insulation, which dominates the heat conduction ...
November 6, 2014

science
Over time,a plant pollinated by a hummingbird has developed very long, tube like flowers.Why might the flower have adapted in this way?
October 30, 2014

Math
I did this test, the answer is c: 5 buns and 3 patties :)
October 29, 2014

Anatomy and Physiology
Im gonna go ahead and answer this myself and say that I have no idea and I am most likely going to fail this assignment
October 19, 2014

Anatomy and Physiology
There are many disease, disorders, syndromes that attack the muscular system such as muscular dystrophy, hypotonia, polio, etc. Because of our research facilities and advanced medical care in the United States, many of the people in our country who are victims of these ...
October 19, 2014

Physics
Two forces parallel to the x axis do 17.2 J of work on a small tray while moving it 19.0 m in the x direction across a gym floor. One of the forces has a value of +3.93 N in the x direction. What is the other force?
October 14, 2014

Chemistry
if all the macro-molecules are made mainly of the elements CHO, how are they different?
October 8, 2014

Algebra
The length of a rectangle is 11 cm more than the width. The perimeter is 90 cm. Find the length and width of the rectangle.
September 7, 2014

Mathematics
The minute-hand of a clock is 6cm long. How far does the end of the hand travel in 35m?
July 5, 2014

physical science
A 0.200 kg ball sits on a shelf 2.00 meters from the floor and then falls to a point 1.00 meter from the floor ignoring any affects due to fiction at this position_______
May 30, 2014

Physics quick help please
6. If 4.0 × 1018 J of work done on a point charge changes its electric potential difference by 25.0 V, then what is the magnitude of the charge? (Points : 1) 1.6 × 101^9 C 4.0 × 101^9 C 1.6 × 101^8 C 4.0 × 101^8 C 7. Two parallel plates have an ...
May 1, 2014

business
Research studies indicate that the referral approach is effective because: A. customers seldom trust a salesperson, but do trust a third party. B. customers may be far more impressed with your good points if they are represented by a third party, rather than by you. C. ...
April 30, 2014

Probability
a) y/(1+mu) b) 1+mu c) (y+1)/(1+mu)
April 3, 2014

probability
2) Part a
April 3, 2014

Algebra
What is a quartic function with only the two real zeros given? x = -4 and x = -1 A. y = x^4 + 5x^3 + 5x^2 + 5x + 4 B. y = x^4 - 5x^3 - 5x^2 - 5x - 4 C. y = -x^4 + 5x^3 + 5x^2 + 5x + 4 D. y = x^4 + 5x^3 + 5x^2 + 5x - 5
March 24, 2014

Math
Im think E
March 14, 2014

Math
Each of the following is equivalent to 75% of 60 EXCEPT A. 0.75 × 60 B. 0.6 × 75 C. 60 × 15 20 D. 75 × 6 100 E. 60 × 3 4
March 14, 2014

Plz help me.
1.D 2.D 3.B 4.A I got an 4/4 on connexus. thanks damon but your wrong on 3 its B
March 13, 2014

Plz help me.
what the hell is you saying Soso
March 13, 2014

Math
The velocity (feet per second) of an object is given by the equation v = 3(2t + 1)0.4. What is the equation for the acceleration of the object? What is the equation for the displacement of the object? The displacement is initially 25 feet. What are the values of the ...
March 12, 2014

Chemistry
What are the typical ppm values of hard water and an unknown water sample and how do their titrations compare?
March 12, 2014

math
The voltage (in volts) induced in a coil of wire is v = (2t + 1)^0.5. The current in the coil is initially 0.3 amps, and the inductance is 5H. What is the equation for the current in the coil?
March 11, 2014

math
the temperature has been dropping 3 degrees per hour. at midnight the temperature was 25 degrees. let y be the temperature after x hours
February 24, 2014

Math
Stacy Multiplied 5 * 9 and said the answer was 44. What 2 patterns could you use to show that her answer is not correct?
February 24, 2014

Physics
A golfer, standing on a fairway, hits a shot to a green that is elevated 5.50 m above the point where she is standing. If the ball leaves her club with a velocity of 46.0 m/s at an angle 0f 35.0º above the ground, find the time that the ball is in the air before it hits ...
February 17, 2014

English
Could someone explain whats the difference between these two questions? Why do you wish to study the program(s)? What influenced your decisions to apply to the program(s)?
February 10, 2014

Physics
) The energy of the first excited state of a hydrogen atom is -0.34 eV ± 0.0003 eV. What is the average lifetime of for this state?
February 6, 2014

Health
Alright thank you
January 27, 2014

Health
Thank you so much, do you know how many milligrams would be good?
January 27, 2014

Health
If you have tiny white bumps on your lips, probably caused by frequent lip biting, how can you treat it? Please help
January 27, 2014

geometry
Quad ABCD with diagonal DB. <adc=90, <c=91, <cbd=43. segment ad=segment dc=9. Which segment is longer ab or ad and why? steve, how are you solving for <abd, what are you assuming about <abc?
January 24, 2014

math
Thank you steve, but something must be wrong with this problem. We have not learned law of cosines or law of sines yet and the correct answer is ad?? Baffled at how to get this based on what we are studying, SAS and SSS inequality theorems.
January 24, 2014

math
How are you solving for <abd. Making assumptions?
January 24, 2014

math
Quad ABCD with diagonal DB. <adc=90, <c=91, <cbd=43. segment ad=segment dc=9. Which segment is longer ab or ad and why?
January 24, 2014

Science
Which aspect of Einstein's theory of special relativity was testable? the postulates only the postulates and the predictions the predictions only none of the aspects
January 8, 2014

Physics 221
What is the magnitude and direction of the electric field at a point 0.75 m away from a point charge of +2.0 pC?
December 31, 2013

Math help ms sue.
that teacher is very rude
December 16, 2013

MAA Global Science
A lump of ice falls from a jet plane as it tries to land at an airport. If the ice hits the ground with a vertical speed of 85m/s, what was the height of the plane when the ice fell off.
December 13, 2013

please help me!! with this science!!!!!
all of them is correct i promise
December 11, 2013

Trig
Sum and diffence formula Finding Exact value of Tan 105-Tan 10)-15)/1+ tan(105)Tan(-15)
December 9, 2013

Geometry
Find the missing numbers for the dimensions and measures of a rectangular prism... Length ? Width 7 m Height 5 m Surface Area 214 m to the second power Volume ? Please answer the one's with a ?. Thank you.
December 6, 2013

Geometry
Let's say a company is manufacturing juice boxes that are rectangular prisms with dimensions 4 inches by 3 inches by 4 inches. The company has a warehouse whose dimensions are 40 feet by 30 feet by 20 feet. If the company makes 200,000 juice boxes, will it be able to store...
December 5, 2013

math
How do you work this word problem? The team played 125 games and lost 15 more than they won.How many did they lose
December 2, 2013

Help Please!!!- Physics
A plane flies due north (90° from east) with a velocity of 100 km/h for 3 hours. During this time, a steady wind blows southeast at 30 km/h at an angle of 315° from due east. After 3 hours, where will the plane’s position be relative to its starting point? Show ...
November 22, 2013

math
How many formula units of the compound are present in 5.7g of Epson salt?
November 8, 2013

Health part 2
its not c
November 5, 2013

Math
So, one of my subjects midterm I got 71% (43 out of 60). The mid-term test was worth 25%. It is my first evaluation. How do I calculate my final mark so far? :|
October 23, 2013

Physics
A juggler throws a ball straight up into the air and it takes 2.80 seconds to reach its peak. How many seconds will it take after that to fall back into his hand? Assume he throws and catches the ball at the same height.
October 21, 2013

Math
Ginny has two quarters. For every week that Ginny does all of her chores, her mother increases the amount of money Ginny has exponentially. The equation y=0.5*3^x represents the amount of money that Ginny has after x weeks of doing all of her chores. What does the term 3^x ...
October 2, 2013

Algebra
Debbie finished her algebra test early so she decided to check each of her answers. After checking her answer to question #10, she realized she made a mistake in her solution. In which step does Debbie make her mistake? Original Equation: 2 + 3y = 5(y - 2) Step One: 2 + 3y = ...
September 25, 2013

History (chronological order of date)
11,000 b.c. 540 b.c. 0 894 a.d.
September 25, 2013

math
A certain ball is dropped from an altitude of 1 meter and rebounds one-half of it's previous altitude. What is the total distance the ball has traveled when it hits the floor the 40th time?
September 5, 2013

Geometry
(5d + 5) - (d +1)
September 4, 2013

Physics
A swimmer heads directly across a river, swimming at 1.9 m/s relative to the water. She arrives at a point 50 m downstream from the point directly across the river, which is 79 m wide. (a) What is the speed of the river current? m/s (b) What is the swimmer's speed relative...
August 1, 2013

Math 6th grade
What is smart estimation to determine an estimation range.
July 17, 2013

physics
A student runs through a field 100m(E) then 200m(S) and finally 50(45 degrees S of E find his final position relative to his starting point? please explain steps Answer is 272(60 degrees S of E)
July 4, 2013

Physics
Jim is 100m(S) of Paul. Paul begins to walk east at 2.0m/s the same time Jim begins to walk west at 3.0m/s. what is the displacement of Jim from Paul 20 seconds later? Please explain steps Answer is 141(SW)
July 4, 2013

physics
A jet starting from rest reaches a speed of 241km/h on 96.0m of runway. Determine the magnitude of the Jet's acceleration? Answer is 23.3m/s^2
July 3, 2013

Physics
I have no clue to this question which is why i needed the help :(
June 10, 2013

Physics
What value of voltage will be reached across the plates of a capacitor, after two time constants, if the maximum value of voltage when fully charged, reaches 200 volts?
June 10, 2013

Math help!
A bag contains 9 blue marbles and 1 green marble. What is the probability of drawing a blue marble followed by a green marble, without replacing the first marble before drawing the second marble? Is the answer 1/9?
May 30, 2013

Math
I forgot to mention the die has 6 sides.
May 30, 2013

Physics
Find the scalar product of the vectors ai+bj and bi-aj . Where a and b are arbitrary constants. What's the angle between the two vectors?
May 30, 2013

Physics
1/2mv^2(final)-1/2mv^2(initial) 2600J
May 30, 2013

Physics
1/2mv^2=1/2mv^2 v(subcompact)= 116.0762 km/h
May 30, 2013

Physics
Cannot answer need more information.
May 30, 2013

Physics
.75 Joules
May 30, 2013

math
2 51 45 58 41 44 37 38 40 44 45 40 59 45 44 34 44 43 48 32 38 1.Determine the mean of the data 2.Determine the standard deviation of the data
May 19, 2013

IIT-JEE
i have to prepare for my IIT-JEE examination. But i have no knowledge about the books for preparation. Please tell me some books for the preparation of objectives for IIT-JEE. Now i am in 10+2 class.
May 7, 2013

physics
v(b)=2m/s V(w)=1m/s Velocity of boat w.r.t water= V(bw)=v(b)-v(w) =(2-1)m/s =1m/s Time= 3min =180s Distance= v(bw)*time = 1m/s*180s = 180m.
May 7, 2013

Physics
its (c)-inertia
May 7, 2013

english
where did the story October sky take place
April 29, 2013

math
Using the method of completin the square solve x2-27x+50
April 24, 2013

English
what does he makes his life seems like "poor me" and he is elevated the process of suffering to a level that any martyr would admire means??
April 17, 2013

Applied Calculus
The world population at the beginning of 1990 was 5.3 billion. Assume that the population continues to grow at the rate of approximately 2%/year and find the function Q(t) that expresses the world population (in billions) as a function of time t (in years), with t = 0 ...
April 14, 2013

Applied Calculus
Thanks to both of you, I won't forget how to do this next time! It makes much more sense now, and will be even easier on basic functions versus logarithmic/exponential functions. I think it was the natural log that tripped me a little bit there, but thank you for the ...
April 12, 2013

Applied Calculus
I am sorry, the function is g(x)= x/(ln(x))
April 12, 2013

Applied Calculus
Find the absolute extrema of the function on the interval [2,3]. (Round your answers to the nearest hundredth.) Absolute Minimum ___ at x=___ Absolute Maximum ___ at x=___
April 12, 2013

Algebra(1st one was typo)
The function f(x)=x^3 +1/4 x −1^4 is a monotonically increasing function, hence it is injective (one-to-one), so its inverse function exists and is well defined. How many points of intersection are there, between the function f(x) and its inverse f^−1 (x) ?
April 11, 2013

Algebra
The function f(x)=x 3 +1 4 x−1 4 is a monotonically increasing function, hence it is injective (one-to-one), so its inverse function exists and is well defined. How many points of intersection are there, between the function f(x) and its inverse f −1 (x) ?
April 11, 2013

Geometry
Let ƒÆ=sin −1 7 25 . Consider the sequence of values defined by a n =sin(nƒÆ) . They satisfy the recurrence relation a n+2 =k 1 a n+1 +k 0 a n ,n¸N for some (fixed) real numbers k 1 ,k 0 . The sum k 1 +k 0 can be written as p q , where p...
April 11, 2013

Geometry
ABC is a triangle with circumcenter O , obtuse angle BAC and AB<AC . M and N are the midpoints of BC and AO respectively. Let D be the intersection of MN with AC . If AD=1 2 (AB+AC) , what is the measure (in degrees) of ÚBAC ?
April 8, 2013

math
Yes thanks
April 6, 2013

math
Yes I don't know that pattern either
April 6, 2013

math
6_12_9_18_15 Please help find the next three patterns 2_9_16_23
April 6, 2013

Geometry
ABCD is a parallelogram. If ÚABC=35 degrees , what is the measure (in degrees) of ÚADC ?
April 5, 2013

Geometry
Sorry made a mistake you are right
April 5, 2013

Geometry
Actually not because the problem is asking for 3 digits such as 100
April 5, 2013

Geometry
How many three digit numbers have three distinct digits?
April 5, 2013

Applied Calculus
For its beef stew, Betty Moore Company uses aluminum containers that have the form of right circular cylinders. Find the radius and height of a container if it has a capacity of 29 in.3 and is constructed using the least amount of metal. (Round your answers to two decimal ...
April 2, 2013

Calculus
Let N = \int \int \int_B xyz^2\ dV , where B is the cuboid bounded by the regions 0 \leq x \leq 1, -1 \leq y \leq 2 and 0 \leq z \leq 3. If N = \frac{a}{b}, where a and b are coprime positive integers. What is the value of a+b?
March 27, 2013

Applied Calc
That's interesting you say that, listed under my professor's list of things we need to study, he has that listed. Do you believe it to be a mistake? Should I email him perhaps? I see what you are saying here. Thank you Bob.
March 25, 2013

Applied Calc
What is the marginal average cost function?
March 25, 2013

Applied Calculus
I know how to solve it to get .21, but I need to write it using positive exponents only. I know this isn't technically Calculus, but it is what we are reviewing currently. I am a bit rusty with this one, can't quite remember how to do it. I am trying some different ...
March 21, 2013

Applied Calculus
2^(3/4)*4^(-3/2)
March 21, 2013

math
Thx
March 18, 2013

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