Questions LLC
Login
or
Sign Up
Ask a New Question
Derek
Questions and answers by visitors named
Derek
Questions (155)
A force of magnitude 15 N is the resultant of two forces, one of which has a magnitude of 8 N and acts at an angle of 30° to
7 answers
3,165 views
Any ideas on how to solve this: Use a vector solution to show that a scalar equation for the line through the points P1(x1, y1)
3 answers
859 views
I am asked this: How can you do the cross product of two-dimensional vectors. Well I would have to guess that you just add a 0
6 answers
636 views
In the DNA helix, a ________ (a bicylic nitrogenous base) is always paired with a __________, (a moncyclic nitrogenous base).
1 answer
519 views
what is a the soild material in a solution called?
It is called the solute; however, there are many solutions in which no solid
1 answer
405 views
what are the properties of a solid - this is for 5th grade
the state in which a substance has no tendency to flow under moderate
1 answer
664 views
What happened in FLorida in 1909?
http://www.fws.gov/policy/029fw3.html
1 answer
370 views
What does this mean? For any vector Vector a find Vector a × Vector a. Explain why (this is cross product stuff). Thanks
4 answers
1,155 views
I cant get the correct answer and I can't figure out what I am doing wrong. If a=(2,2k) and b=(4,k) are perpendicular, find k. I
4 answers
417 views
A force of magnitude 15 N is the resultant of two forces, one of which has a magnitude of 8 N and acts at an angle of 30° to
2 answers
631 views
Add these two vectors: I used component law, and I got an answer, but I am unsure as to how to do the direction at the end. Add:
3 answers
597 views
Another one for you :P, add these two vectors using trigonometry (again)... 9N[S2W] and 11N[N31W]...Again, I am confused about
2 answers
563 views
Add these two vectors: I used component law, and I got an answer, but I am unsure as to how to do the direction at the end. Add:
1 answer
450 views
Add the following vectors , 7m/s [N30E] and 2m/s [S17E], using trigonometry. Once you draw these out into diagrams, you use the
2 answers
721 views
I have the following marathon problem but am unsure where to start:
A Sample consisting of 22.7g of nongaseous, unstable compound
2 answers
578 views
I have the following marathon problem but am unsure where to start:
A Sample consisting of 22.7g of nongaseous, unstable compound
2 answers
1,219 views
How do I know if a syllable is stressed or unstressed?
5 answers
971 views
For the function ƒ(x) = x^3 - 8x + 3, calculate where a = 5 and h = 2. Simplify before substitution (the simplifying is where I
4 answers
430 views
verify that lim h>0 (e^x+h -e^h)/h=e^x and explain how this illustrates that ƒ′(x) = ln e • ƒ(x) = ƒ(x)... The notes for
1 answer
402 views
Determine the interaction of the line of intersection of the planes x + y - z = 1 and 3x + y + z = 3 with the line of
4 answers
1,451 views
this can be done by projections of two vector.
recall that the scalar projection of vector b on vector a is a∙b/│a│ so
2 answers
632 views
Wow, so it is late and I can't think! How do I put this into scalar form: r=(6,0,1) + t(3,1,2)? thanks!
4 answers
272 views
Use normal vectors to determine the intersection, if any, for each of the following groups of three planes. Give a geometric
2 answers
623 views
I am so confused with this last part of the unit! What in the world is going on: Use normal vectors to determine the
4 answers
1,515 views
Use normal vectors to determine the intersection, if any, for each of the following groups of three planes. Give a geometric
2 answers
895 views
What is the ABCs of healthful living
3 answers
475 views
Hey, I just wanted to say a HUGE THANKS to everyone on this website for helping me out so far with calculus. I am actually
3 answers
411 views
Determine the value of k so that the line with parametric equations x = 2 + 3t, y = -2 + 5t, z = k is parallel to the plane with
6 answers
2,230 views
An air ambulance is travelling from Barrie to Toronto. Toronto is located 90 km [S5°E] of Barrie. If the wind is blowing from
4 answers
1,536 views
I don't know how to answer this: A vector can be used to represent the path of a drill tip used to bore a deep mine shaft in
1 answer
445 views
Determine vector, parametric and, if possible, symmetric equations for the line through Q(2, -1, 3) and the mid-point of the
2 answers
559 views
Verify using an example that a + ( b• c) = (a •b ) +c ? Explain your reasoning. I have been over this a thousand times and I
3 answers
398 views
Determine a vector equation for the line through the points (-1, 4) and (2, -1).
I said: r= (-1,4) + (4,-5), tER, is that
4 answers
667 views
So, yet again, I am confused! State whether or not the following statements are true. Justify your reasoning.
a). a• ( b+c ) =
1 answer
450 views
An air ambulance is travelling from Barrie to Toronto. Toronto is located 90 km [S5°E] of Barrie. If the wind is blowing from
7 answers
4,188 views
Using calculus: If you invest $5000 compounded continuously at 4% p.a. how much will this investment be worth in 5 years? I am
4 answers
786 views
For the decomposition of Carbon 14, find the age of a prehistoric cave painting discovered in the Lascaux Caves in southern
5 answers
2,583 views
What is the derivative of this: not sure because of the pi....
f(x)=x^pi Thanls.
1 answer
270 views
How do I deal with square roots and derivatives? Like: f(x)= Sqrtx....the derivative. find
2 answers
704 views
What function would have a derivative of ƒ′(x) = 12x2 + 4x − 10? Explain how you arrived at your answer...I believe the
3 answers
968 views
So, I haven't posted in a while...but now I am stummped! Only question I can't get today!
A team of students seeks to make a flag
3 answers
1,058 views
1. Use calculus and algebraic methods to do a complete analysis (i.e., intercepts, critical points, intervals of increase and
4 answers
913 views
Hey! So, I was wondering if someone could answer this. I am mad studying for my exam and I still have a few questions left that
3 answers
636 views
solve each of the following equations by the square root method and show your work
4x²-20=0
3 answers
937 views
solve each of the following equations by the square root method and show your work
(3x + 2)²=8
1 answer
408 views
solve each of the following equations by completing the square and show ur work
x²-4x=32
1 answer
397 views
solve each of the following equations by completing the square and show your work
x² + 6x + 24=0
2 answers
507 views
solve each of the following equations by factoring and show your work
12x² + 15x + 10= -10x -2
1 answer
439 views
solve each of the folowing equations by factoring and show your work
x²+x²=13x²-36
5 answers
375 views
solve each of the folowing equations by factoring and show your work
x²+x²=13x²-36
1 answer
325 views
solve each of the following equations by the square root method and show your work
4x²-20=0
1 answer
421 views
A ball is thrown vertically upward with an initial speed of 20 m/s. Two seconds later, a stone is thrown vertically (from the
3 answers
5,998 views
The Lump Sum Principle In the 1980s Margaret Thatcher
was the British Prime Minister. She was very popular and e ective until she
2 answers
639 views
1 mol of an ideal gas expands under isothermal conditions (T=298.15K). The initial pressure and volume is 2.00 atm and 1.00L
1 answer
520 views
1 mol of an ideal gas expands under isothermal conditions (T=298.15K). The initial pressure and volume is 2.00 atm and 1.00L
3 answers
499 views
1 mol of an ideal gas expands under isothermal conditions (T=298.15K). The initial pressure and volume is 2.00 atm and 1.00L
1 answer
491 views
a set of 10 cards consists of 5 red cards and 5 black cards. the cards are shuffled thoroughly and i choose one at random,
3 answers
1,961 views
How can you tell whether a function is rational or not? And how do you determine holes of a graph? Thanks!
1 answer
384 views
Is there really any difference between vertical asympotes and domains in functions? Are they always the same numbers? Thanks
1 answer
318 views
I need a tube that is 118cm long. The total allowance is 158cm by Multiplying the LxWxH. What circumference can the tube be.
4 answers
338 views
find the unit rate for 9.25 for 18 pounds
1 answer
356 views
How does Saki in "The image of the lost soul" use descriptions of places to reach desired effect in story?
Can anyone tell me
4 answers
448 views
I need help in making a hypothesis statement for a certain topic, I chose at school. Can anyone give me an example of one?
Here
5 answers
595 views
Can anyone help me with these questions?
How was the culture of the Baby Boom so different from that of previous generations? Why
3 answers
551 views
I want to know all the Rhetorical and Figurative Devices and Examples in the Essay Hidden Lesson by David Suzuki
3 answers
507 views
Find an equation of a plane through the point (1, 5, 1) which is orthogonal to the line
x=3+5t y=5-1t z=-1+4t in which the
3 answers
655 views
7[3m-(m+6)] G.T. -6(M-1)
1 answer
262 views
a player uses a hockey stick to increase the speed of a 0.200 kg hockey puck by 6 m/s in 2 seconds is the acceleration 3 m/s2?
3 answers
388 views
what role does religion play in society in North Korea?
2 answers
521 views
Draw And Shade a figure that represents 150%.
4 answers
1,336 views
Normal urine is ____, as indicated by its pH value.
A) slightly alkaline, B) neutral, C) slightly acidic, D) extremely alkaline
2 answers
695 views
Which of the following groups of tissue types is found in blood vessels?
A. Connective, muscle, and nervous tissues B. Muscle and
2 answers
1,077 views
Is a wart an example of a papule or a nodule?
1 answer
784 views
A community college has 3,000 students and 90 instructors. The college plans that enrollment will be 3,500 next year. How many
4 answers
863 views
1.If a mass is 15 cm from the axis of rotation and makes 25 revolutions in 10 seconds, what is its speed in m/s?
2.If m = 0.1 kg
4 answers
1,637 views
can some one help me with coming with a better way to word theses annswers.
As the angle increases, what happens to the tension
1 answer
400 views
A 1600 kg car travels at a speed of 10.5 m/s. What is its kinetic energy? Assume that air resistance is negligible.
2 answers
671 views
What was the initial kinetic energy of the small mass before the collision?
What is the kinetic energy of the two-mass
1 answer
472 views
0.17 kg point mass moving on a frictionless horizontal surface is attached to a rubber band whose other end is fixed at point P.
2 answers
889 views
4x2squared +9 \3-(8+3)
1 answer
223 views
A gatling gun fires at a rate of 2000 rounds per minute. If the bullets travel at a speed of 800m/s, how far apart are the
1 answer
374 views
I have trouble understanding whats the three psychological models of mental illness include etiological explanation and the
5 answers
417 views
When 0.5963g of a sample containing NaNO2 and some inert material is allowed to react with excess HSO3NH2, the volume of N2 gas
1 answer
450 views
Riverside Oil Company in eastern Kentucky produces regular and supreme gasoline. Each barrel of regular sells for $21 and must
6 answers
2,984 views
1.Nordstrom creates an open atmosphere, in which every associate’s sales figures are made available to everyone else. Explain
1 answer
365 views
A projectile is fired from the origin with an initial velocity V₁=100m/s at an angle θ₁=30⁰. Another is fired from a
4 answers
1,116 views
a large square has sides of 24 units, midpoints of its sides are connected to create a smaller square. what is the area of the
1 answer
482 views
Solve the following differential equation:
f"(x)=sinx, x(0)=0, x'(0)=1
1 answer
553 views
How much heat is required to warm 1.50 kg of sand from 20.0 C to 100.0 C?
4 answers
1,299 views
A point charge q=+4.7nC is placed at each corner of an equilateral triangle with sides of 0.21m in length.
a) What is the
3 answers
1,490 views
How many different integer values of n satisfy the inequality 1/13 < 2/n < 1/10?
F. 1 G. 2 H. 3 J. 4 K. 5
2 answers
888 views
The height of a parallelogram is 10 feet more than its base. If the area of the parallelogram is 120 square feet, find its base
2 answers
825 views
If you could reach absolute zero then?
A) The system falls into quantum ground state B) The system will have an entropy of zero
3 answers
822 views
If y= (x^2+20)/(x-4) Find all critical Numbers.
After get f' i got the answer -5/4. What did i do wrong or is that the critical
1 answer
350 views
If y= (x^2+20)/(x-4) Find all critical Numbers.
After get f' i got the answer -5/4. What did i do wrong or is that the critical
1 answer
354 views
Find the maximum and minimum product of 2 numbers who sum is 5
4 answers
1,415 views
Find the maximum area of a rectangle that lies above the x axis and below y=9-x^2
2 answers
827 views
An open top bos with a square base is to be constructed from 192 sq ft of material. What should be the dimensions of the box if
4 answers
2,868 views
A company wishes to issues bonds with a coupon rate of 5%. The company wishes to raise 100 million dollars net of commissions
1 answer
431 views
What types of devices use USB ports?
1 answer
343 views
Pages
1
2
