# Posts by Jordan

Total # Posts: 1,095

Calculus
Find all the relative extrema of f(x) = x = x3 – 3x2 + 4.

Math Q.2
4.166666666667

math
4|2y-3|-1=11

SPANISH
#1 says/ What stores are in malls there are Mexicans in the malls of America? #2 says/ Where are the young Mexicans to buy cheap clothes and fun? Where are you and your friends? Can bargain there?

math
|3t-2|+6=2

math-calculus

math
COOOOOOL...THX BROSKI

math
-3|2w|=-12

math
kinetic energy is moving energy, or the energy possessed by an object in motion. potential energy is the the energy possessed by an object during rest. Similarity Think of a roller coaster. The chain pulls the rollercoaster full of people up the hill to the top. On the way up ...

geometry
You are given the measures of two angles, beta and gamma. The three angles of a triangle always total up to 180. alpha + beta + gamma = 180 alpha = 180 - beta - gamma so solve for the measure of alpha You know that gamma is 90 degrees, so you have a right triangle. You can use...

math
Mechanical energy is a kind of energy created by the physical movement or rotation, revolution etc of anything.Since most of the movements done and energy created are done by machines, it is named as mechanical energy

Math #Help Meee!!!!!!!!
|n|+3=7

Steve and Reiny
A tank has the shape of an inverted circular cone with a base radius of 5 meters and a height of 20 meters. If water is being pumped into the tank at 2 cubic meters per minute, find the rate at which the water level is rising when the water is 7 meters deep WELL I HAVE THIS v=...

Math (Calculus)
A tank has the shape of an inverted circular cone with a base radius of 5 meters and a height of 20 meters. If water is being pumped into the tank at 2 cubic meters per minute, find the rate at which the water level is rising when the water is 7 meters deep

Math (Calculus)
A tank has the shape of an inverted circular cone with a base radius of 5 meters and a height of 20 meters. If water is being pumped into the tank at 2 cubic meters per minute, find the rate at which the water level is rising when the water is 7 meters deep

math
No, you can divide 23 by 4 and get 5.75, but you can't split people into 3/4's

math
So a write a word problem? Esna had bought wanted to buy stickers. Esna sister has 15 stickers and Esna always wants to have 3 times as much as the sister. How many stickers did she buy?

WELL I HAVE THIS v=1/3pi*r^2h v=1/3pi*r2(4r) v=4/3pi*r^3 dv/dt=4pi*r^2 2=4pi(7/4)^2 2=49pi/4 * dr/dt dr/dt= 8/49pi = 0.052 meters per minute

is the answer 8/49pi= 0.052 meters per minute

A tank has the shape of an inverted circular cone with a base radius of 5 meters and a height of 20 meters. If water is being pumped into the tank at 2 cubic meters per minute, find the rate at which the water level is rising when the water is 7 meters deep

Help Math
Thanks Steve

Help Math
A circular pulley with a radius of 10 cm is turning at 12 revolutions per minute. How fast is a point on the edge of the pulley rising when it is 5 cm higher than the center of the pulley?

8/12 and 9/12

social studies
A limited government is a government that cannot interfere with personal liberties and individual rights much because it is against the law

math (Calculus)
A circular pulley with a radius of 10 cm is turning at 12 revolutions per minute. How fast is a point on the edge of the pulley rising when it is 5 cm higher than the center of the pulley?

help ss !!!!!!!!!!!!!!!
I believe 1 is b and 2 is b as well

The Control is something you kept the same. There is not enough information for me to say what exactly what it is. For example, if you used the same wheel bearings the entire time that would be the control.

calculus
A spherical balloon is leaking air at 2 cubic inches per hour. How fast is the balloon's radius changing when the radius is 2 inches.

math (Caluclas)
Oh okay. I understand that, i was just not understand where the 9 came from, but i see now. Thank you both

math (Caluclas)
Sorry about that Reiny. I have a quick question though, where does the 9 come from?

math (Caluclas)
A spherical ballon is leaking air at 2 cubic inches per hour.l How fast is the ballons radisu chancing when the radisu si 3 inches.

Nope, Because 23 * 3 = 69 and Mr Brooks has only 66 acorns

How do you show work for this problem, in a percent equation form?~ \$3680 at 6.75% for 2 1/4 years

Physics
You would convert 290 miles into 1531200 ft which then the answer would be a531200 ft/sec

Physics
Fe = mg = 645 kg * 9.8 N/kg = 6321 N. = Force of elevator. a. P = F * d/t = 6321 * 2.75 = 17382.75J That is the increase in potential, now we must add the increase in kinetic energy, which is: Ws = 1/2 m(Vf)^2 - 1/2 m(Vi)^2 Ws = 1/2 645kg(1.26m/s)^2 - 0 Ws = 512.001J adding ...

math
my brain hurts

math
He saved \$2,500 in April. He earned \$5,000 in May. Thus he had a total of \$7,500 Total spent in May - \$4,200 + \$2,500+X X= Amount saved in May Thus total = Amount spent + Amount saved Thus total = \$4,200 + #2,500 + X + X \$7,500 = \$4,200 + \$2,500 + 2X Solve for X \$7,500 = \$6,...

math
a square room has sides that each measure 5 feet.How many square feet of carpet is needed to cover the rooms entire floor?

calculas
A car braked at a constant deceleration of 45 ft / s2, producing a skid mark measuring 105 feet before coming to a stop. How fast was the car travelling when the brakes were first applied?

MATH!!!! 7th
nope

MATH!!!! 7th
yeah its the question i need to know what the x is if the mean is 112

MATH!!!! 7th
100,121,105,113,108,x; mean 112

Physics
A 0.165-kg ball, moving in the positive direction at 10 m/s, is acted on by the impulse shown in the graph below. What is the ball's speed at 4.0 s?

physics
Early skeptics of the idea of a rotating Earth said that the fast spin of Earth would throw people at the equator into space. The radius of Earth is about 6400 km. Show why this objection is wrong by determining the following information. a.) Calculate the speed of a 103-kg ...

SOCIAL STUDIES!!!
in what ways did whitneys system improve products

Add up the ratios 3:7:17 to get 27. Since ratios can be scaled, we can scale the ratios to have a sum of 81 by multiplying the ratios by 3,i.e. 3:7:17 ß 9:21:51.

SOCIAL STUDIES!!!
what was eli whitneys main contribution to manufacturing

SOCIAL STUDIES!!!
how did slater and lowell contribute to industry in the united states?

social studies
how did turnpikes,canals,and railroads affect the way that people in different states interacted

social studies
thx :-)

social studies
why did railroad construction end canal building

math
two horses gallop off in the sam direction. Trigger travels25 kilometers per hour. Silver travels 30 kilometers per hour. How long before the horses are 3 kilometers apart?

Physics
4.25sin40= Y component 4.25cos40= X component

english
the stems measure a foot in diameter=transitive people use bamboo in many ways=transitive in japan the hollow stems serve as water pipes= transitive

algebra
Eight times the opposite of a number is 36 less than the product of 4 and the number. What is the number?

calculus
Find the amount of a continuous money flow in which \$175 per year is being invested at 8%, compounded continuously for 20 years.

math
integrate (using substitution). (6x^5)(e^(x^6))dx

Stats
84 and18.2 percnt not likely but 11.2 is likely

geometry
Point A is the incenter of (triangle) PQR. Find each measure. ARU AU QPK

GEOMETRY
LINE CD IS MEDIAN OF TRIANGLE ABC AND M IS THE CENTROID.MMIF CM = 14 WHAT IS CD

geometry
line CD is a median of angle ABC and M is the centroid, If CM = 14 what is CD

physics
An airplane flies north at a constant speed for 6h and covers a distance of 2400km. What is the plane's velocity? The acceleration?

pre-calculus
A developer wants to build homes on a rectangular plot of land 4 kilometers long and 3 kilometers wide. In this part of the city, regulations require a greenbelt of uniform width along two adjacent sides. The greenbelt must be 10 times the area of the development. find the ...

Math (Translate each sentance into a equation)
Translate this sentence into an equation. Craig's age increased by 21 is 68 . Use the variable c to represent Craig's age.

math
10

Physics
A shell is fired with velocity having horizontal and vertical components ux, uy. At the highest point of it's path the shell explodes into two fragments of mass m1, m2, which separate in a horizontal direction. The explosion generates kinetic energy E. Show that the ...

this summer it has rained only 1/4 as much as last summer . 12 inches of rain fell last summer. what amount of rain has fallen this summer

physics
Hello, can anyone help me this problem? The author's cat enjoys chasing chipmunks in the front yard. In this game, the cat sits at one edge of a yard that is w = 32 m across (see figure), watching as chipmunks move toward the center. The cat can run faster than a chipmunk...

geometry
find other endpoint of line segment with a given endpoint and midpoint endpoint (2,1) Midpoint (-7, 2)

math
i think it's B but i'm not sure

math
Max has 12 pairs of socks. Of them, 6 pairs are blue, 3 pairs are brown, and 2 pairs are white. Max wants to know what fraction of the socks are blue or brown. How can he find the numerator? a) Add 6+3+2 b) Add 6+3 c) Subtract 11 from 12 d) Subtract 9 from 12

math
you download 12 new songs to your MP3 player. then you delete 5 old songs. write each amount as a integer.

Chemistry
Mass of evaporating dish = 41.36 g Volume of saturated NaCl solution = 10.0 mL Mass of evaporating dish and NaCl = 44.50 g Mass of sodium hydrogen carbonate = 0.49g What is the morality(M) of the sodium chloride solution if you prepare in 1 liter of solution? How do you ...

Chemistry
Why are covalent bonds weak in the presence of heat but strong in the presence of water?

AP Geography
That's the only reason I've turned to this site for help. I burnt out on 4 other sections like this and I need help. Ugh.

AP Geography
Oh yes, I do appologize, I have to deal with a reeeeal stupid confusing text book. I have NO idea what Near Abroad is, I didn't know if it was some term I wasn't use to hearing or what. I've been using Russia as a whole country compared to Europe & it's ...

AP Geography
I need a comparison of Europe's economy versus Russia and the Near Abroad's. I've done like five other topics, writing two or three pages for each, can I just get some quick help? I need three or more idea's I can toss together in words. Websites are welcome.

Physics
I had a question actually... why is your Vx related to the sin? and your Vy related to the cos? isn't it usually the other way around?

Calculus
When Pal throws his beach ball straight up in the air, it's height h at time tis given by h=(-1/2)gt^2+v(sub 0). Find the velocity of the ball when t=0.

Calculus
When Pal throws his beach ball straight up in the air, it's height h at time tis given by h=(-1/2)gt^2+v(sub 0). Find the velocity of the ball at time t.

Chemistry
How do the number of electrons found in the element’s outer shell relate to their position in the period table? -- I have an idea, but I'm not sure how to verbalize it, can you please help? Thanks! :)

Calculus
A ball of radius 14 has a round hole of radius 8 drilled through its center. Find the volume of the resulting solid

AP CHEM
Comparing the Noble Gases to the Alkaline Metals, what are major similarities and major difference between the two?

AP HS Chemistry
I need help. In simple english please, what is Hund's Rule, Pauli Exclusion Principal, and the Aufbau Principal? I need to know these. Please try to be simple as possible because I'm not understanding right now, haha. Thanks!! :)

geometry
triangles ABF and EDG are congruent. triangles ABF and GCF are equalateral. AG = 24 and CG = 1/5 AB. find the total distance from A to B to C to D to E

Physics
F = ma for the whole bike as a unit. The force F that is causing the bike to move is your resistive force 147N. a = R*alpha, so you should have m=F/R*alpha so m = 147/(.32*4.5) = 102.083 which is the answer given by OP as being correct.

Physics
Which of the following contains the most mechanical energy? A 10 kg ball at the top of a hill 10 meters high A 5 kg ball rolling with a velocity of 12 m/s A 10 kg ball rolling with a velocity of 5 m/s A 5 kg ball at the top of a hill 10 meters high I think it is A

Physics
Is an airplane flying round trip at a constant speed an example of uniform circular motion or is a record player rotating at a record speed?

Physics
Can gravity friction and tension be all centripetal forces?

Physics
wait just figured it out pe=mgh

Physics
A 5 kg ball is initially at rest at the top of a hill 10m high. If it rolls down the hill (converting all of its potential energy to kinetic energy,) what is the maximum kinetic energy it could have at the bottom of the hill? -I am not sure what formula to use?

PHYSICS
ohh i finally get it!

PHYSICS
Which machines has more mechanical advantage pulley or incline plane? I asked this question before but did not quite understand the answers that were given to me. I think that the incline plane has more mechanical advantage in a friction less environment.

PHYSICS
haha okay thank you for your help!

PHYSICS
what would happen if it was a friction less environment?

PHYSICS
When you have more pulleys does the mechanical advantage and efficiency increase or decrease?

PHYSICS
Does mass affect mechanical advantage in any way?

PHYSICS
So the pulley has more mechanical advantage and the incline has more efficiency?

PHYSICS
Which simple machine has more mechanical advantage a pulley or a inclined plane? PlEASEE HELP SUPER CONFUSED

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