Posts by taylor
Total # Posts: 1,976

chemistry
3465.k 
math
write 78 minutes to 2 hours as a ratio reduced in lowest terms 
Algebra
Find the constants a and b so that all the four lines whose equation are given by pass through the same point. x + y = 1 x + 3y =11 ax + by =4 2a x by =2 
social studies
THANK U SOOOOOO MUCH ipromise <3 :) 
Algebra
What is the domain of the inverse f^1(X)= (x^2)4/5 
Math
What is 2a+73(94a) 
nursing ATI maternity test
practice test 
AP Chem
It takes 535 kJ to remove one mole of electrons from the atoms at the surface of a solid metal. How much energy does it take to remove a single electron from an atom at the surface of this solid metal? kJ 
AP Chem
It takes 550 kJ to remove one mole of electrons from the atoms at the surface of a solid metal. How much energy does it take to remove a single electron from an atom at the surface of this solid metal? 
Chemistry
What would be the effect on the percent by mass of iron (whether it would be higher, lower or unchanged from what it should be) calculated to be in the unnkown sample and why if the sample contained some Fe3+ as well as some Fe2+ 
Music
Thank you Mags got a 100 
Social studies
Answers is 100% correct. thank you 
Social studies
Ms.Sue shut up 
chemistry
Calculate how many mg of potassium hydroxy are needed to neutralize 75mg of mefenamic acid . 
chemistry
the important industrial process for producing ammonia (the Haber Process), the overall reaction is: N2(g) + 3H2(g) ? 2NH3(g) + 100.4 kJ A yield of NH3 of approximately 98% can be obtained at 200°C and 1,000 atmospheres of pressure. How many grams of N2 must react to form ... 
Algebra
what? 
math
How many real number solutions does the equation have? y=5x^2+8x7 
Chemistry  Significant Figures
0.07 
Physics
If a proton in a proton beam experiences a downward force of 2.0X1014N while traveling in a magnetic field of 8.3X102T west, what is the velocity? 
Science
Electronic band structures are caused by electronelectron interactions between neighboring atoms. The greater the degree of interaction, the wider the band generally becomes. For this reason, atoms with high coordination numbers tend to form wider bands, since more bonds are ... 
Science
“Strained silicon” technology is a technique where a silicon thin film is deposited onto a silicongermanium (SiGe) film. Both Si and SiGe have the same crystal structure, but the lattice parameter of SiGe is larger than that of pure silicon. Therefore, when a film ... 
physics
A plane is cruising at 155.00 km/h increases it speed to 285.1 km/h in just 11.5 s as it makes a dive. What was the acceleration of the plane? a = vf  vi / t 
Social Studies
thank you castiel and the unknown 100% 
Math
thank you >...< 100% 
Science
Can someone please explain? This tool is called a McLeod rake, a tool commonly used in fighting forest fires or wild fires. It is used to clear vegetation in order to make firebreaks, and also to cut off stray branches. The metallic head part of the rake is often made out of ... 
Math
A uniform width boardwalk is built around the inside edge of a rectangular parkland that is 30 m by 5 m. If the boardwalk takes up 20% of the lot, how wide is the boardwalk to the nearest cm? 
Grade 11 math
A uniformwidth boardwalk is built around the inside edge of a rectangular parkland that is 10m by 5m. If the boardwalk takes up 20% of the lot, how wide is the boardwalk to the nearest centimetre? I have no idea what to do after figuring out that: Total area= 150m^2 Boardwalk... 
World History
Do you have the answers to the rest of the test? Unit 6: World War 1 and the Russian Revolution 
Physics
HBO is concerned about injuries on the set of their award winning fantasy series Game of Thrones. Star characters are given real swords which have a point of balance (centre of mass) 5.0cm above the top of the handle. For safety reasons, you are given only the 15cm long, 0.... 
College Algebra
f(x)=3x^2+3x3 if f(x)= 
Algebra
What is the general relationship between the degree of a polynomial function and the number of "bends" or relative maximum and minimum points in the graph? 
Math
3(5×3)5=(15×9)5 1355=130 
Math
The sum of two numbers is 9.twice their product gives 40.find the numbers. One number exceeds another by 4.the sum of their square is 208. What are the numbers. The area of a rectangular field is 108square .the perimeter is 42. Find the length. 
Math
The store usually sells the baskets of fruit for 15 dollars but today they have a 5% discount which is the new price. Please help me i am totally confused on what is going on. 
math
A boat traveled downstream a distance of 9090 mi and then came right back. If the speed of the current was 88 mph and the total trip took 66 hourscomma nbsp, find the average speed of the boat relative to the water. 
8th grade math
thank you sayaka miki 
math
2 pieces 
123
on 
Physical science
Explain whether the size of an object’s displacement could be greater than the distance the object travels. 
PE
3. the fruit filled donut 
Reading Process LA Q
NO he is not i just got a 0 THANK YOU VERY MUCH. 
Reading Process LA Q
NO he is not i just got a 0 THANK YOU VERY MUCH. 
Math
12/56 
History
thank you sooooo much @answers! 100% 
Math
When Carla looked out at the school parking lot, she noticed that for every 2 minivans, there were 5 other types of vehicles. If there are 39 vehicles in the parking lot, how many of them are not minivans? I am confused on how to solve this problem. I need help solving the ... 
Math
sqrt of 12r^7s^7 divide by sqrt of r^5s^2 
Math
The diagonal of a square is 3 feet long. Find its perimeter. My answer: a^2+b^2=c^2 x^2+x^2=3^3 2x^2=9 divide both side by 2 x^2=4.5 x=?4.5 x=2.1 feet Is this right? 
SS
thank you unknown and mr.frank 
chemistry
how many grams of NaOh are needed to make 50 g of Na3PO4 according to the equation: 3NaOH+H3PO4=Na3PO4+3H2O (i'm not sure where to even start for this!) 
chemistry
how many grams of NaOh are needed to make 50 g of Na3PO4 according to the equation: 3NaOH+H3PO4=Na3PO4+3H2O (i'm not sure where to even start for this!) 
Algebra
A student has a mean score of 89 on 5 tests. what will be the new mean if she scores a 95 on the next test? (89+95)/6=X 
Algebra
Oh okay. Thank you 
Algebra
But I got 30.667 as my answer. So do I add that to the 89? 
Algebra
A student has a mean score of 89 on 5 tests. what will be the new mean if she scores a 95 on the next test? (89+95)/6=X 
math
Mileys music has a sale on music cds. All music Cds are discounTed 15%. mariana's receipt indicates that she saved $3 on her cd purchase. What is the full price of her music cd before discount 
physics
Just like the efficiency can be used to tell how 'good' an engine is, the Coefficient of Performance can be used to compare refrigerators. If a refrigerator requires 1.21×104 J of work to remove 3.23×104 J of energy from the inside of a refrigerator, what ... 
Calc
Use Stokes' Theorem to evaluate C F · dr where C is oriented counterclockwise as viewed from above. F(x, y, z) = xyi + 5zj + 7yk, C is the curve of intersection of the plane x + z = 8 and the cylinder x2 + y2 = 9. 
Calc
Use Stokes' Theorem to evaluate C F · dr where C is oriented counterclockwise as viewed from above. F(x, y, z) = yzi + 9xzj + exyk, C is the circle x2 + y2 = 1, z = 3. 
Calc
Evaluate the surface integral S F · dS for the given vector field F and the oriented surface S. In other words, find the flux of F across S. For closed surfaces, use the positive (outward) orientation. F(x, y, z) = xy i + yz j + zx k S is the part of the paraboloid z = ... 
American government
How have NATO's operations changed over time ? A.) NATO only directs peacekeeping measures now B.) NATO no longer defends Western Europe C.) NATO has fewer member countries now than when it began D.) NATO's activities now include crisis management and peacekeeping ... 
physics
A 3.35g lead bullet at 31.0°C is fired at a speed of 255 m/s into a large block of ice at 0°C, in which it embeds itself. What quantity of ice melts? 
MATH
Find the area of the part of the plane with vector equation r(u, v) = <2 + v, u ? 7v, 5 ? 4u + v> that is given by 0 ? u ? 1, 0 ? v ? 1. 
MATH
Find a parametric representation for the part of the cylinder y2 + z2 = 4 that lies between the planes x = 0 and x = 5. x = u y = 2cos(v) z = 0 ? v ? 2? 
MATH
Find an equation of the tangent plane to the given parametric surface at the specified point. r(u, v) = u cos vi + u sin vj + vk; u = 7, v = ?/3 
MATH
Its wrong Steve 
MATH
Find the area of the surface. The part of the paraboloid z = x2 + y2 that lies inside the cylinder x2 + y2 = 4. 
chem
A chemist is commissioned to produce twenty pallets of aspirin: C7H6O3 (salicylic acid) + C4H6O3 (acetic anhydride) ? C9H8O4 (aspirin) +C2H4O2 (acetic acid) Given a bottle contains 500 tablets (each containing 325 mg of aspirin). A case contains 144 bottles. A pallet contains... 
Social Studies
I didn't get a bad grade 95% I still thank you for your help:) 
Social Studies
Thank you Hailey, everything is correct except for 10. You are partially correct, instead of BD it's BC. 
physics
Blood flows in an aorta of radius 4.12mm at 35.0cm/s. Calculate the volume flow rate. Although the crosssectional area of a capillary is much smaller than that of the aorta, there are many capillaries, so their total crosssectional area is much larger. If all the blood from ... 
MATH *PLEASE HELP
Use Green's Theorem to evaluate C F · dr. (Check the orientation of the curve before applying the theorem.) F(x, y) = y2 cos x, x2 + 2y sin x C is the triangle from (0, 0) to (1, 3) to (1, 0) to (0, 0) 
Math
Consider F and C below. F(x, y, z) = (2xz + y2) i + 2xy j + (x2 + 15z2) k C: x = t2, y = t + 2, z = 3t ? 1, 0 ? t ? 1 (a) Find a function f such that F = ?f. f(x, y, z) = x2z+xy2+5z3+C Correct: Your answer is correct. (b) Use part (a) to evaluate C ?f · dr along the ... 
Math
Determine whether or not F is a conservative vector field. If it is, find a function f such that F = ?f. If it is not, enter NONE. F(x, y) = (3x^2 ? 2y^2) i + (4xy + 2) j 
algebra
you need an average of 88. you have scored an 85,90,80,94 on four out of five test. what must your score be on the 5th test to have an average of an 88?? 
Calc
A particle starts at the point (?3, 0), moves along the xaxis to (3, 0), and then along the semicircle y = sqrt(9 ? x^2) to the starting point. Use Green's Theorem to find the work done on this particle by the force field F(x, y) = <2x, x^3 + 3xy^2> . 
Math
Use Green's Theorem to evaluate C (F · dr) (Check the orientation of the curve before applying the theorem.) F(x, y) = e^(2x) + x^(2)y, e^(2y) ? xy^2 C is the circle x^2 + y^2 = 4 oriented clockwise 
science
what do mangroves ecosystem provide for organisms 
American Government
How have NATO's operations changed over time ? A.) NATO only directs peacekeeping measures now B.) NATO no longer defends Western Europe C.) NATO has fewer member countries now than when it began D.) NATO's activities now include crisis management and peacekeeping ... 
Math
Evaluate the line integral, where C is the given curve. (Integral)C z dx + x dy + y dz, C: x = t^4, y = t^5, z = t^4, 0 ? t ? 1 
Math
Evaluate the line integral SC F · dr, where C is given by the vector function r(t). F(x, y, z) = sin x i + cos y j + xz k r(t) = t^4i ? t^3j + tk, 0 ? t ? 1 
Math
Find the work done by the force field F(x, y, z) = <y + z, x + z, x + y> on a particle that moves along the line segment from (1, 0, 0) to (5, 2, 3). 
Science
An object accelerates at 7.5m/s^2 with a force of 25N west being applied to it and there is a frictional force of 13N. What is the mass of the object 
Science
If an object with a mass of 98kg at 2.5m/s^2, what amount of force is applied to it? 
Math
STONEGROUND FLOUR The radius of a milestone is 3 meters greater than the radius of another, and their areas differ by 15pi square meters. Find the radius of the larger milestone. 
American government
I'm writing a paper explaining how the constitution and its european influences support our modern ideas about american citizenship and the rights and responsibilities of being a citizen Can someone help me like give me some ideas I'm stuck on this paper :/ 
American government
I really need help with these questions:( if anyone can I'd really appreciate it How have NATO's operations changed over time ? A.) NATO only directs peacekeeping measures now B.) NATO no longer defends Western Europe C.) NATO has fewer member countries now than when ... 
Science
Lesson 5: Gravity science 8B unit 3 Interaction of Forces 1. True 2.B 3. D 4.C 5.A 6.C 7.C 
math
the 12 oz can but I came out with a remainder when I divided not sure what I am suppose to do if I show a remainder 
math
12 ounces of corn costs .59 16 ounces of corn costs .81 which is the better by .59/12=.04 .81/16.05 
physics
A block with a mass of 0.306 kg is attached to a spring of spring constant 444 N/m. It is sitting at equilibrium. You then pull the block down 4.50 cm from equilibrium and let go. What is the amplitude of the oscillation? 
math
if a 12 ounce can of beans cost .59 how much does one ounce cost .59/12=.04 
physics
A horizontal circular platform (m = 122.1 kg, r = 3.43m) rotates about a frictionless vertical axle. A student (m = 82.3kg) walks slowly from the rim of the platform toward the center. The angular velocity, omega, of the system is 2.9 rad/s when the student is at the rim. Find... 
Drivers ED
b 
Math
How would you describe your understanding of rational numbers? (Select all that apply) 
physics
A block of mass 0.49kg starts from rest at point A and slides down a frictionless hill of height h. At the bottom of the hill it slides across a horizontal piece of track where the coefficient of kinetic friction is 0.28. This section (from points B to C) is 3.60m in length. ... 
history
writeacher is probably not even a teacher probably some stupid kid tryna scare people of getting banned. So is Ms. Sue 
Physics
A ball is thrown straight up at 45 m/s. How long will it take the ball to come back to its original height? Why? 
Algebra
Solve the system by elimination 2x + 2y + 3z = 0 2x  y + z = 3 2x + 3y + 3z = 5 
Algebra
Can someone please help me I'd really appreciate it Solve the system by substitution x  y  z = 8 4x + 4y + 5z = 7 2x + 2z =4 
physics
A 65.2 kg person jumps from rest off a 3.11 mhigh tower straight down into the water. Neglect air resistance during the descent. She comes to rest 1.08 m under the surface of the water. Determine the magnitude of the average force that the water exerts on the diver. This ...