Sunday

July 5, 2015

July 5, 2015

Total # Posts: 51

**geomtry**

A diameter of a circle has endpoints P(-10,2) and Q(4,6) a. find the center of the circle. b. find the radius of your answer is not an interger express in radical form c. write an equation for the circle
*May 22, 2015*

**Algebra**

m=1/3 b=-4
*March 17, 2015*

**math**

67 dont ask how
*May 7, 2014*

**physics**

It has to be 37.9 or 32.1 The others are wrong I think.
*May 2, 2014*

**Science**

Never Mine about this question, the answer was Punctuated Equilibrium. I actually got the question right. :D
*May 2, 2014*

**Science**

Niles Eldredge found evidence in trilobite fossils of a pattern of evolution in which short periods of large change or mixed with longer periods of little or no change. This Pattern Is Called ___________? I'm stumped on this question, can anyone help me?
*May 2, 2014*

**Math**

stop freaking cheating lol jk its 525 ik this becuase you do what steve did lol
*April 29, 2014*

**Math**

1. Suppose you want to buy concrete for a 36ft by 24 ft by 9 in. patio. If concrete costs $55/yd^3, how much will the concrete for the patio cost? 2. A cylinder has a volume of about 500 cm^3 and a height of 10 cm. What is the lenght of the radius to the nearest tenth of a cm?
*March 17, 2014*

**Math**

Susan designed a circular pool with a diameter of 25 meters. What is the area of the bottom of the pool? Round to the nearest tent. Please help this is due tomorrow and I need to up my grade.
*March 10, 2014*

**Science**

i cant figure it out either are you on connexus
*November 10, 2013*

**math**

i have a question that i am unable to answer: in a load of 3/4 ton of steel rods 1/8 of them are bent . How many tons of steel rods are bent?
*November 4, 2013*

**MATH**

DEREK PLANTED A GARDEN IN THE SHAPE OF A SQUARE 32 FEET ON EACH SIDE. THE GARDEN HAS A STREAM ON ONE SIDE, BUT HE PLANS TO BUILD A FENCE ON THE OTHER THREE SIDES. IF HE PUTS A FENCEPOST EVERY 8 FEET, HOW MANY POSTS WILL HE NEED
*May 29, 2013*

**trig**

A mountain road makes an angle θ = 8.4° with the horizontal direction. If the road has a total length of 3.4 km, how much does it climb? That is, find h.
*February 1, 2013*

**Statistics**

I have another Stats question i'm confuesed on. classify the sample as random, systematic, covenience, stratified, or cluster. A marketing executive fo General Motors finds that its public department has just printed envelopes with the names and addresses of all Corvette ...
*January 21, 2013*

**Statistics**

I have a question about one of my Stats vocab questions. any help is great. thanks! Identify the type of observational study as either Cross-sectional or retrospective (just a reminder, Cross-sectional is data measured at one point in time, retrospective is data collected from...
*January 21, 2013*

**Statistics**

does some one mind checking my work? it's real simple Stats vocab. thank you! Determine whether the given description corresponds to an observational study or an experiment: (just as a refresher, observational means passive and experiment means active) 1.)much contoversy ...
*January 21, 2013*

**statistics**

Using the central limit theorem, construct a 95% confidence interval for the average total cry time for infants in the control group and infants in the intervention group. For this question only, assume that the standard deviation of cry time within each group is known and is ...
*January 21, 2013*

**Science**

i posted this earlier, but no one answered. so i'll try again. Can you check my work please? true/false 1.) force is a scalar quantity: *FALSE 2.) the object on which a force acts is called the system: *TRUE 3.)The specific, indentifiable cause of a force is called the ...
*December 11, 2012*

**PHYSICS ~so confused~**

so i'm going to try my hardest to type this out. which of the following system of forces provides the block the highest net force? a.) 11N--->[box]<---71N b.) 405N--->[box]<---403N c.) 227N--->[box]<---153N d.) 22.7N--->[box]<---15.3N I thought this...
*December 11, 2012*

**Physics-please check my work**

please?? this is due in an hour!
*December 11, 2012*

**Physics-please check my work**

Can you check my work please? true/false 1.) force is a scalar quantity: *FALSE 2.) the object on which a force acts is called the system: *TRUE 3.)The specific, indentifiable cause of a force is called the system: *FALSE 4.) A force can not exist without an agent and a system...
*December 11, 2012*

**Science HELP PLEASE**

A mouse pushes a piece of cheese with a mass of 6.4 g for a distance of 75 cm over a frictionless surface. He exerts a constant 0.5 N force as he does so. If the cheese starts from rest, what is it's final velocity?
*December 5, 2012*

**phsical science **

what is the period of a string that vibrates with a frequency of 20 times per second
*December 5, 2012*

**math**

Use structure What property of addition is shown in the following number sentence. Explain
*August 27, 2012*

**math**

a certain variety of strawberry plant sends out an average of 5 new runners per plant each year. If you planted 20 of these plants, how many strawberry plants would you have after 4 years?
*August 2, 2012*

**social studies**

DBQ underground railroad
*June 5, 2012*

**Algebra 2**

What is three root 1/3 ? I'm not sure if that looks right in words, but I don't know how to post the square root symbol. If that doesn't make sense, then pretend that this sign: % is a square root: 3 %1/3 The 3 looks like it's a little above it. Please help me...
*January 31, 2012*

**Algebra 2**

What is three root 1/3 ? I'm not sure if that looks right in words, but I don't know how to post the square root symbol. If that doesn't make sense, then pretend that this sign: % is a square root: 3 %1/3 The 3 looks like it's a little above it. Please help me...
*January 31, 2012*

**grade 8 math**

72
*January 23, 2012*

**Economics**

B Cross-price elasticity of demand = Percentage change in quantity demanded of good 1 / Percentage change in the price of good 2 I did the work and that's what I got.
*November 29, 2011*

**math**

thanks i knew that!
*November 16, 2011*

**math**

What might you have if you don't feel well? letters are e, g, o, v, o, s, n, l
*November 16, 2011*

**math**

what is 4 divided by 2 2/3?
*May 25, 2011*

**Math**

What is the reduced fraction of 8/15?
*April 27, 2011*

**Physics**

A hammer taps on the end of a 4.20 m long metal bar at room temperature. A microphone at the other end of the bar picks up two pulses of sound, one that travels through the metal and one that travels through the air. The pulses are separated in time by 5.45 ms. What is the ...
*November 22, 2010*

**physics**

How much work must you do to push a 13 kg block of steel across a steel table (\mu_{{\rm k}}=0.6) at a steady speed of 1.3 m/s for 2.6 s?
*November 18, 2010*

**8th grade**

(18 - (-4))divide (-11) (-4) + 2
*November 16, 2010*

**physics**

Part A. With what minimum speed must you toss a 190 g ball straight up to hit the 12 m-high roof of the gymnasium if you release the ball 1.5 m above the ground? Solve this problem using energy. Part B. with what speed does the ball hit the ground?
*November 13, 2010*

**physics**

a 1300 newton crate slides 14 meters down a ramp that makes an angle of 30 degree with the horizontal. if the crate slides at a constant speed, how much thermal energy is created?
*November 13, 2010*

**chemistry **

calculate the number of atoms in 10.0g of sulfur
*October 18, 2009*

**english**

which word is the noun in the sentence,"I like to horseback ride."
*September 21, 2009*

**Math**

What do we call the numbers that cannot be arranged into 2-row arrays?
*August 25, 2008*

**math**

sum of two numbers is 42.Their difference is 6.What are the two numbers?
*January 31, 2008*

**math**

Find the slope and y-intercept. x=-9
*January 30, 2008*

**math**

Is –4 a solution to the equation 8x – 6 + 3x = 5 + 2x – 10
*January 29, 2008*

**math**

Solve the system by substitution.x-5y=2 ,2x+3y=17
*January 24, 2008*

**for Drbob222**

Sorry bit thick, why do you multiply equation 2 by 2?
*October 29, 2007*

**for Drbob222**

thanks but i do need help to solve the third part also, I did get these equations but don't know how to put them together to solve the third. thanks for helping further!
*October 29, 2007*

**Maths**

yeah can you help me to put the two equations together? I did get the equations for the first two questions but don't know what to do with them to get the third. thanks
*October 29, 2007*

**Maths**

3 part question. 1. 4 peaches and 3 grapefruit cost £1.30. Write down an algebraic equation to illustrate this. 2. 2 peaches and 4 grapefruit cost £1.20. Write down an algebraic equation to illustrate this. 3. Find the cost of 3 peaches and 2 grapefruits Please help!
*October 29, 2007*

**Physics**

19200
*May 10, 2007*

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