Thursday

October 8, 2015
Total # Posts: 81

**Physics **

A boy threw a rock straight down from a tree top with a velocity of 5.00 m/s. If the rock struck the ground below 1.80 s later, what was its velocity at this time?
*September 18, 2015*

**Algebra**

Find the surface area of a right circular cone with radius of 5cm and height of 12cm.
*September 17, 2015*

**Algebra**

So x would equal 0?
*September 1, 2015*

**Algebra**

Solve the system of equations: x + 2y = 3 4x + 5y = 6
*September 1, 2015*

**Algebra**

Find the x-intercept and the y-intercept for the equation y = -¾x + 3
*September 1, 2015*

**Algebra**

What is the shape that is formed by taking the inner piece of cardboard in a paper towel roll, carefully cutting along the seam and flattening? How do you know this?
*August 31, 2015*

**critical points**

(1 pt) Find all critical values for the function f(x) = 6 x^3 - 18 x + 1, and then list them (separated by commas) in the box below. List of critical numbers:
*May 4, 2015*

**Art check please**

1: a 2: d 3: c
*January 23, 2015*

**Math please help**

Simplify & write the answer using positive exponents: 1. (3^3)(3^-6) 2. S^2 t^-1 / (s^4 t^4)^1/2 Simplify then evaluate, express answer to 4 decimal places where nessasssary : 3. [(2/3)^2]^-3 4. [(1-4)^-3 Divide (1/4)^2]^-2
*September 23, 2014*

**Math**

Simplify and write the answer using positive exponents : 1. (3^3)(3^-6) 2. S^2 t^-1 / (s^4 t^4)^1/2 3. [(2/3)^2]^-3
*September 23, 2014*

**Math help**

Explain whether the following given are closed under addition: {x|x ¸ W and x>100}
*September 15, 2014*

**math**

Write the base-three numeral for the base-three representation shown...
*September 9, 2014*

**Pre-Calculus**

Hi! I need help with this math homework question: If you had a triangle that has the vertices (-2, 1), (0, -5), and (1. 2) and you had to shift that triangle 5 units left and 4 units down, how would you find the vertices of the shifted triangle?
*September 9, 2014*

**Algebra**

An inspector of weights and measures uses a special set of weights to check the accuracy of scales. Various weights are placed on a scale to check the accuracy of any amount from 1 oz. to 15 oz. What is the fewest number of weights the inspector needs? What weights are needed ...
*September 9, 2014*

**math**

ok i dont know this so here it is it says use the number 913,256 and write the period that has the 913. what did they just say?
*August 26, 2014*

**science**

The answers are 1:B 2:B 3:D 4:A
*March 11, 2014*

**Help!!!**

Yay 100% the Emily!!!
*February 3, 2014*

**IPC**

Which of the following elements is not likely to form bonds? gold oxygen neon mercury
*January 10, 2014*

**IPC-Science**

The specific heat of gold is 0.031 calories/gram°C. If 10.0 grams of gold were heated and the temperature of the sample changed by 20.0°C, how many calories of heat energy were absorbed by the sample? 6.2 calories 0.016 calories 6,451 calories 0.062 calories
*January 10, 2014*

**Math**

Ellipses [(x+3)^2 / 12] + [(y-2)^2 / 16] I Have to find the following: Center: Foci: Vertices: A: B: C: Eccentricity:
*December 10, 2013*

**Civics **

Ms.Sue would you mind checking my answer? Question~How does the constitution protect someone's freedom of speech while also limiting their freedom of speech? Answer~ we are allowed to state our opinion as long as it-does not taken someone's rights away, doesn't ...
*November 23, 2013*

**Civics**

Ah! Thanks Ms.Sue!
*November 23, 2013*

**Civics**

Which rights have allowed for citizens to check the powers of government?
*November 23, 2013*

**Language arts**

Wouldn't*
*November 18, 2013*

**Language arts**

Would that be right?
*November 18, 2013*

**science help plzzz**

I got 100% yay answer for 1 is b answer for 5 is c
*November 7, 2013*

**algebra**

what do you call drilling 4976 holes? worksheet answeres
*September 2, 2013*

**Social Studies**

I need a 4 paragraph essay on the devil's arithmetic. my theme is "no laugh, no hope. NO hope, no life." THANK YOU (: im not passing and i reallllllly neeed help on this
*May 6, 2013*

**Physics**

A car is traveling at 42.0 km/h on a flat highway. (a) If the coefficient of friction between road and tires on a rainy day is 0.100, what is the minimum distance in which the car will stop? m (b) What is the stopping distance when the surface is dry and the coefficient of ...
*October 7, 2012*

**Physics**

Consider the figure below. (Let w1 = 150 N and w2 = 38.0 N.) (a) What is the minimum force of friction required to hold the system of the figure in equilibrium? N (b) What coefficient of static friction between the 150-N block and the table ensures equilibrium? (c) If the ...
*October 7, 2012*

**Phisics**

A rocket is launched at an angle of 59.0° above the horizontal with an initial speed of 103 m/s. The rocket moves for 3.00 s along its initial line of motion with an acceleration of 31.0 m/s2. At this time, its engines fail and the rocket proceeds to move as a projectile...
*September 12, 2012*

**College Physics**

The best leaper in the animal kingdom is the puma, which can jump to a height of 3.7 m when leaving the ground at an angle of 45°. With what speed must the animal leave the ground to reach that height? _____m/s
*September 12, 2012*

**geography**

i think it might be china because im doing aversge s.s in fourth grade even though im top of the class so yeah i think its china im only 9 so it may or may not be wrong
*August 21, 2012*

**Chemistry**

If 84 g of CO2 were produced, how many grams of butanol were burned?
*April 25, 2012*

**basic engineering electricity**

At what current drain does the ampere-hour Energizer d cell drop to 75% of its value at 25mA?
*January 29, 2012*

**Chemistry**

If you put a piece of iron in an aqueous solution of blue Cu2+ ions the spontaneous redox reaction Fe+ Cu2+„³ Fe2+ Cu Will occur. An aqueous solution of Fe2+ ions is red-brown a. What is oxidized b. What is reduced c. What is the oxidizing agent d. What is the ...
*November 21, 2011*

**Chemistry**

which of the following are redox reactions a. 2Na+2H2O-->2Naoh+H2 b. MgBr2+2NaF-->MgF2+2NaBr c. 2CO+O2--> 2CO2 d. SO2+H2O--> H2SO3 For those reactions that are redox reactions: Indicate which atoms get oxidized and which atoms get reduced. Indicate which reactant ...
*November 21, 2011*

**Chemistry**

Sorry Dr Bob, I am not here to get my homework done, I am trying to compare answers like my answer for this question was A soft drink is an aqueous solution, a solution is a homogeneous mixture of 2 or more substances. In the case of pepsi, it is the aqueous solution, the ...
*November 21, 2011*

**Chemistry**

Is it appropriate to call a soft drink an aqueous solution? Justify your answer
*November 21, 2011*

**Chemistry**

Use the shortcut rules to assign an oxidation state to each atom in: a) PCI3 b) H2S c) MnO4- d) HNO3 e) HCOOH f) S2O32-
*November 21, 2011*

**Chemistry**

Draw a Lewis dot diagram for NF2H and use the oxidation state method of electron bookkeeping to determine how many electrons each atom should be assigned.
*November 21, 2011*

**chemistry**

I need help with this question please help, I just don't understand it Fe3+ (aq), Ca2+ (aq) and Ba2+ are all present in the same solution. Fully describe a procedure whereby you could separate these ions from one another Mr Pursley posted this response, but I don't ...
*November 13, 2011*

**chemistry**

I know I posted this and it got a response, but unfortunately for me the reponse has got me confused, sorry Bob. Fe3+ (aq), Ca2+ (aq) and Ba2+ are all present in the same solution. Fully describe a procedure whereby you could separate these ions from one another
*November 12, 2011*

**chemistry**

Fe3+ (aq), Ca2+ (aq) and Ba2+ are all present in the same solution. Fully describe a procedure whereby you could separate these ions from one another
*November 7, 2011*

**Trigonometry**

sorry, it's a different question. That one was miswritten. I accidently wrote cd instead of ca.
*July 8, 2011*

**Trigonometry**

v=2(ab+bc+ca), solve for a
*July 8, 2011*

**Trigonometry**

log3(x^2)=2log3(4)-4log3(5)
*July 8, 2011*

**Algebra 2**

v=2(ab+bc+cd) for a
*July 8, 2011*

**math**

v=2(ab+bc+cd) for a
*July 7, 2011*

**math**

how do you solve 5k-3=negative13
*April 25, 2011*

**History 1301**

I am to describe how the differences (of human history in North America during the 8000bc era and the asia euriasia and europe era) affected the internation state affairs of 1450. I don't even know where to begin.
*July 24, 2010*

**math**

Sorry! Don't use that. Didn't notice the - sign. So, it should be.. 8 = -2+5g 10 = 5g 2=g
*May 5, 2010*

**math**

8-3g = 2+2g 8 = 2+5g 6 = 5g 6/5 = g
*May 5, 2010*

**Chemistry **

D. It's a solid. You will find (s)-solid, (l)-liquid, (g)-gas, (aq)-aquious, etc.
*May 5, 2010*

**Algebra**

(4y-3)(4y-3) FOIL F - First. (4y)(4y)=16y^2 O - Outside. (4y)(-3)=-12y I - Inside. (-3)(4y)=-12y L - Last. (-3)(-3)=9 = 14y^2 - 24y + 9
*May 5, 2010*

**Pre-Calc**

Tee Ball is similar to baseball, but the field is a diamond 40 ft square. The pitchers mound is positioned 25 ft from homeplate. Determine the distance from the pitchers mound to 3rd base.
*May 4, 2010*

**7th grade**

x=19
*May 4, 2010*

**chemistry **

35g of water at 55 degrees Celsius is heated until it is all steam at 100 degrees Celsius. How much every was added?
*April 22, 2010*

**MATH - Probability**

A commander faces a battlefield mobility situation. He has three feasible routes, R1, R2 and R3. The payoffs of his choice will be determined by weather conditions W1, W2 and W3. The best result is to gain 200 miles and the worst result is to lose 160 miles. The commander is ...
*April 14, 2010*

**college philosophy**

A commander faces a battlefield mobility situation. He has three feasible routes, R1, R2 and R3. The payoffs of his choice will be determined by weather conditions W1, W2 and W3. The best result is to gain 200 miles and the worst result is to lose 160 miles. The commander is ...
*April 13, 2010*

**math again**

You have a bag with 60 black jelly beans and 240 red ones. a) If you draw one jelly bean out of the bag, find the probability that it is black. -------60/300= 1/5 b) If you add 60 black jelly beans to the original bag and draw out a bean, what is the probability that it is ...
*February 24, 2010*

**math**

If a movie ticket now averages $6.75 and has been increasing an average of 15% per year compute the cost: in 8 years 8 years ago
*February 24, 2010*

**grammar**

what is the predicate adjective and participle in this sentence? Nearly a hundred years later, a talented ballet dancer appeared in the same city.
*January 24, 2010*

**solving inequality**

I have two problems that Im.. having a problem with. I would like an answer but with an step by step explanation, so i can do the other 20 that are due tomorrow... lol. 1. 3x - 8 > 10 2. -2x +7 ≤ 37
*December 3, 2008*

**3rd Grade**

all scientists tickle cats.. always swim to california all sea turtles cry lol, im just getting these off the top of my head!
*December 3, 2008*

**9th grade : Algebra**

no. you gotta solve for y. y=mx+b
*December 2, 2008*

**9th grade : Algebra**

How would you work out this problem? 2x+5y=10
*December 2, 2008*

**biology terms**

i need help to find what some biology terms mean. -substrate concentration - enzyme - catalyst
*October 6, 2008*

**math**

if you know the rule stay change opposite. it might just give you a clue. -5+-4= two negatives added together equal a negative.
*October 6, 2008*

**Science 4th grade**

uh duh if we didnt know animals that lived in the ocean we would be dummos when we r 80
*March 25, 2008*

**ap chemistry**

okay i see what you're saying. thanks so much for all your help.
*February 27, 2008*

**ap chemistry**

Would the temperature increase increase the value of delta G then?
*February 27, 2008*

**ap chemistry**

Some reactions that are predicted by their sign deltaG to be spontaneous at room temperature do not proceed at a measurable rate at room temperature. A suitable catalyst increases the rate of such a reaction. What effect does the catalyst have on deltaG for the reaction? AND ...
*February 27, 2008*

**math**

if kyra and chloe each ate half a pizza, how is it possible that kyra ate more pizza?
*February 26, 2008*

**social studies**

what were the egyptian portrait masks for mummies made of
*February 26, 2008*

**world cultures**

I am working on a project for school and I can't seem to find the year that these Chinese inventions were invented. Yo-yo. Compass. Acupunture. Wheelbarrow. Printint.
*February 17, 2008*

**literature**

Falling action
*December 26, 2007*

**band**

please help me solve this riddle. "you've heard me before, yet you hear me again. Then I die, Til' you call me again." Who wrote this riddle?
*November 5, 2007*

**Language Arts**

well if you are presenting it yourself then it would be more related to speaking, but if you are simply creating the flannel board then it is more related to writing
*September 11, 2007*

**Math**

im srry but this makes no sense to me and im in the advanced math class!
*October 4, 2006*

**math**

How to solve for delta using trig functions? i.e. cosine sine tangent secant Thank you I'm not sure what delta you're referring to. Could you please elaborate some for us. What is it you're trying to do with the trig funtions? the problem is.. limit sec theda - 1/ ...
*September 6, 2006*

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