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Carl
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Carl
Questions (233)
A boy running a foot race rounds a flat curve of 50 ft radius. If he runs at rate of 15 mph, at what angle with the vertical
4 answers
4,241 views
Can someone please explain to me how to solve this:
Simplify 6P2. A) 30 B) 15 C) 12 D) 720
13 answers
5,484 views
A stone has an initial velocity of 100 fps up to the right at 30 degrees with the horizontal. The components of the acceleration
3 answers
2,279 views
Is there a website that will give a sample business plan I can use for my project?
http://www.sba.gov/starting_business/planning/
1 answer
396 views
Number of sides in a argument
Usually 2 but it could be more. You ever argue with a brother or sister? What about your parents or
1 answer
418 views
can someone help me remove this infostealer virus, Norton 2006 finds it but doesn't give me the option to remove it, it says it
1 answer
396 views
How do I express these in scientific notation AND Log10 form?
1) ln(8.1) 2) 32.8 x 10^-2 + 3.15 x 10^-1 3) 10^-2 x 10^4.5 4)
2 answers
789 views
How do I express these in scientific notation AND Log10 form?
1) ln(8.1) 2) 32.8 x 10^-2 + 3.15 x 10^-1 3) 10^-2 x 10^4.5 4)
1 answer
449 views
Brigham Young chose the Great Salt Lake valley because of its _________
(9 letter word) http://unicomm.byu.edu/about/brigham/
1 answer
561 views
Show that the compositions below do not result in the same point.
Point A (x,y) 90 degrees clockwise reflection around the y-axis
1 answer
390 views
How do I solve the following by substitution:
5x -2y =-5 y - 5x = 3 8x - 4y = 16 y = 2x - 4 4x -12y =5 -x + 3y = -1
4 answers
557 views
How to solve by substitution: 8x - 4y = 16
y = 2x - 4
2 answers
623 views
How to solve by substitution:
4x - 12y=5 -x + 3y = -1
3 answers
450 views
Solve by substitution;
4x-12y=5 -x+3y
3 answers
412 views
Solve by substitution:
8x - 4y =16 y=2x -4
3 answers
364 views
Solve by substitution:
4x-12y =5 -x + 3y = -1
3 answers
540 views
Solve by addition or substitution;
10x + 2y = 7 y= -5 + 3
2 answers
491 views
I have a problem, which requires I solve the following system of linear inequality graphically.
my textbook is vague and does not
2 answers
750 views
example of a progress report table
1 answer
367 views
1/f = 1/p + 1/q
What is the rate of change of p with respect to q if q=2 and f=4?
2 answers
807 views
C(x)= 16sqrt(x) + (x^2)/1000
Find the production level that will minimize the average cost
1 answer
356 views
C(x) = 16x^(1/2) + x^2/1000
Find x to meet the minimum cost
5 answers
348 views
If d/dx(f(3x^5))=9x^4
Find f'(x)
4 answers
364 views
The seventh harmonic of a one end closed pipe organ has a frequency of 732 Hz, on a day when the temperature is 10 degrees
2 answers
502 views
9x^4-24x^3+16x^2 (Find all solutions!)
3 answers
738 views
List the possible rational roots of each equation. Then determine the rational roots.
6x^4+35x^3-x^2-7x-1 The answer in the back
1 answer
1,069 views
Give an example of a function that is integrable on the interval [-1,1], but not continuous on [-1,1].
1 answer
471 views
Use the table of values to estimate
⌠6 ⎮ f(x)⋅dx ⌡0 Use three sub intervals and the (a) left endpoints, (b) right
1 answer
492 views
I just wanna check if i am right.
A car is traveling with a velocity of 42.3 m/s and has a mass of 2183.0 kg. Find the Ek of the
3 answers
337 views
I don't know where to begin with this one because I don't recall my teacher giving us a formula for it.
A baby carriage is
1 answer
441 views
A roller coaster is at the top of a 98.2 m hill and has a mass of 1831.0 kg. It is traveling at a velocity of 23.7 m/s. What is
4 answers
355 views
Hockey teams recueve 2 points when they win and 1 point when they tie. One season, a team won a championship with 66 points.
2 answers
512 views
You can get a sunburn on a cloudy day, but you can't get a sunburn even on a sunny day if you are behind glass. why?
1 answer
336 views
Ni (s) + Cd^2+(aq)-->Ni^2+(aq)+ Cd(s)
MnO4^-1(aq)+ Al (s) ---> Mn^2+(aq)+Al^3+(aq) no matter what i do, i can't seem to balance
1 answer
336 views
Compute the equilibrium constant for Ni^2+ (aq) and Cd (s).
I keep getting 1.7*10^-3 but apparently that is wrong. What am I
3 answers
379 views
I cannot balance this equation and I am really struggling.
Cr2O7^2-(aq)+ Cu^+(s)-->Cr^3+(aq)+Cu^2+(aq) How do I get the charges
2 answers
756 views
What am I doing wrong? I am trying to balance the equation:
NO3^-(aq)+Sn^2+(aq)-->Sn^4+(aq)+NO(g) here are the coefficients I
1 answer
349 views
This is what I have. Could you please correct my work? Thank you.
Compute the equilibrium constant for Ni^2+ (aq) and Cd (s).
4 answers
502 views
How do you write an expression for...
the value in cents of 5 quarters? Thank You
2 answers
665 views
Mummification Process
1 answer
397 views
Gravel is being dumped from a conveyor belt at a rate of 50 cubic feet per minute. It forms a pile in the shape of a right
2 answers
560 views
A particle is moving along the curve y = 2 √{3 x + 7}. As the particle passes through the point (3, 8), its x-coordinate
2 answers
526 views
How do I set up my equation to determine what the pH will be when the concentration of Fe^3+ is reduced to 10^-7? The previous
4 answers
353 views
A cylinder with a valve at the bottom is filled with an ideal gas. The valve is now opened and some of the gas escapes slowly.
1 answer
860 views
1.) A lawnmower engine claims to provide 18 hp of power and 6.25 ft lb of torque. If this is true, what must be the rotational
1 answer
510 views
The sum of the measures of the interior angles in a polygon is 540 degrees. How many sides does the polygon have?
3 answers
2,552 views
How do you fix a loose lever on a faucet?
3 answers
1,033 views
When a patient’s injured neck is healing, it is often desirable to prevent the weight of the head from pushing down on the
4 answers
1,339 views
What is the pH of a 0.94 M solution of HBrO that is also 0.59 M in magnesium hypobromite, the salt of it's conjugate base? The
3 answers
464 views
You are titrating 35.00 mL of a 1.20 M solution of HCOOH with a strong base. If you add 1.00 mL of a 3.60 M solution of sodium
3 answers
467 views
What name is given to figures (wave) to indicate that points are attracted to only certain regions in the plane and no to
1 answer
318 views
What is the equation for the sequence 1, 2, 1/4, 8, 1/16, 32,......
4 answers
338 views
Use Demoivre's Theorem to find the fourth roots of -16. Leave the four roots in trigonometric form. How the heck do i do this?
2 answers
602 views
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arAilulq incEle asertdarccteoipPr erIoscrdapm loEcernoict lpaLaeliuc mroipliEeltbe
4 answers
255 views
1How would each of the following affect the accuracy of the calculated neutralizing power of antaid (too high, too low, no
1 answer
459 views
6. In a study on caffeine and stress, college students indicated how many cups of coffee they drink per day and their current
3 answers
658 views
1. A researcher is interested in whether students who attend private high schools have higher average SAT Scores than students
2 answers
945 views
1. An LU professor is interested in whether there is a difference between undergraduate students and graduate students in the
2 answers
576 views
2. A teacher wants to investigate whether there is a difference between male and female students in the amount of time they
2 answers
1,115 views
3. A researcher is interested in whether listening to music helps or hinders test-performance. To control for differences in
2 answers
731 views
2. A teacher wants to investigate whether there is a difference between male and female students in the amount of time they
2 answers
672 views
3. A researcher is interested in comparing the Christian maturity level of students who volunteer for community service versus
2 answers
523 views
how do you solve for the function in a problem like 4x+y=-10?
1 answer
265 views
how do you wite an equation for the function in a problem like 4x+y=-10?
1 answer
276 views
What is the length of the blue line labeled r in the image below? Give your answer in terms of a and b.
blue line labeled r
3 answers
3,400 views
Which trigonometric function can equal or be greater than 1.000?
A Sine B Cosine C Tangent D none of the above
7 answers
4,424 views
In ABC, vertex C is a right angle. Which trigonometric ratio has the same
trigonometric value as Sin A? A Sin B B Cosine A C
4 answers
4,239 views
Given the following equation: Na2O + H2O ---> 2 NaOH.
How many grams of NaOH is produced from 1.20 x 10^2 grams of Na2O? How many
3 answers
1,856 views
Prove:
sin(x–y)sin(x+y)=sin^2(x)–sin^2(y)
1 answer
325 views
suppose the glider is initially at rest at x=0, with the spring unstretched. You then apply a constant force in the +x direction
4 answers
496 views
suppose the glider is initially at rest at x=0, with the spring unstretched. You then apply a constant force in the +x direction
2 answers
487 views
water leaves a hose at a rate of 1.5kg/s with a speed of 20m/s and is aimed at the side of a car, which stops it (splashing back
4 answers
2,139 views
a couple part in a car on moonlit evening. Find that their car is stop in the sand. The women having studied physics, ties a
1 answer
422 views
It takes you 7.3 min to walk with an average
velocity of 1.5 m/s to the north from the bus stop to the museum entrance. How far
3 answers
979 views
1. Describe the linear programming situation for this system of inequalities.
x<(or equal too)1 y>(or equal too)0 3x + y<(or
3 answers
684 views
I'm having a hard time with significant figures. Any help would be appreciated.
The first one is 0.0000000502. I put that it has
2 answers
555 views
I got all of them so far EXCEPT this one... help? Thank you!
Convert the following into scientific notation: 1/137
2 answers
1,052 views
A certain substance has a heat of vaporization of 55.30 kJ/mol. At what Kelvin temperature will the vapor pressure be 3.50 times
2 answers
545 views
What may have been one cause for the relative lack of artistic production in Florence during the High Renaissance (after the
1 answer
449 views
Make a tree diagram of all the possible arrangements of the word veer
2 answers
566 views
Find the present value of $14000 due in 9 years at the given rate of interest.
(a) 2%/year compounded semiannually? (b) 5%/year
2 answers
632 views
how can I determine weather to reject or fail to reject the following nul hypothosis: let a= o.01, data: s= 3.1, n=55 and H(0)
1 answer
347 views
how can I decide to reject or fail to reject the following null hypothesis? let a= 0.05,data; p=0.69, n=32, test statistic z=
3 answers
385 views
A rescue cable attached to a helicopter weighs 2 lb/ft. A 190 lb man grabs the end of the rope and is pulled from the ocean into
4 answers
1,509 views
If you can write 5 pages each hour, at that rate, how many min. would it take you to write 2?
3 answers
351 views
Suppose that A and B are events defined on a common sample space and that the following probabilities are known. Find P(A or B).
2 answers
521 views
The average of 20,70 and x is 40. If the average of 20,70, x and y is 50, then y=
a. 30 b. 60 c. 70 d. 80 e. 100
1 answer
336 views
in triangle ABC, AB=6, BC=12 AND AC=X. Which of the following cannot be a value of x?
a. 6 b.7 c.8 d.9 e.10
3 answers
1,798 views
What is the change in enthalpy for an isothermal, isentropic compression of an ideal gas from 2 atm to 12 atm?
1 answer
353 views
What is the change in enthalpy for an isothermal, isentropic compression of an ideal gas from 2 atm to 12 atm?
1 answer
307 views
A container holds 1.3 mol of gas. The total average kinetic energy of the gas molecules in the container is equal to the kinetic
1 answer
653 views
Three moles of an ideal monatomic gas are at a temperature of 396 K. Then 2438 J of heat is added to the gas, and 897 J of work
1 answer
401 views
Three moles of an ideal monatomic gas are at a temperature of 396 K. Then 2438 J of heat is added to the gas, and 897 J of work
1 answer
442 views
A current loop with radius 20 cm and current 2 A is in a uniform magnetic field of 0.5 T. Considering all possible orientations
2 answers
601 views
A positive helium ion He+ is released from rest at the surface of a +1000 V flat electrode. It travels in the +x-direction (in
1 answer
484 views
3. A positive helium ion He+ is released from rest at the surface of a +1000 V flat electrode. It travels in the +x-direction
2 answers
549 views
A 2050 kg truck is traveling east through an intersection at 2.3 m/s when it is hit simultaneously from the side and the rear.
2 answers
844 views
Jared's football team lost a total of 12 yards during 4 plays of the game. They lost the same number of yards during each of the
4 answers
1,301 views
Need Help Please.
A student is thinking about different forums for publishing an editorial. Which of the following would be
4 answers
1,513 views
What is the term for a magazine that is published on the computer?
1. computerized slide show 2. online publication 3. electronic
6 answers
1,209 views
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