Wednesday

October 1, 2014

October 1, 2014

Total # Posts: 71,538

**Pre-Calc**

ahh thank you and sorry for the overkill
*September 27, 2014*

**Pre-Calc**

thanks so much! do you know how i could check the solution by writing the system as a matrix equation and using the inverse matrix?
*September 27, 2014*

**Pre-Calc**

Solve the system of equations using either the substitution method or the multiplication/addition method answer: 3x+2y=14 2x-4y=4
*September 27, 2014*

**ap physics**

2.7s , how far do you travel during this inattentive period?
*September 27, 2014*

**Statistics**

X is a normally distributed random variable X with mean 15 and standard deviation 0.25. Find the values xL and xR of X that are symmetrically located with respect to the mean of X and satisfy P(xL < X < xR) = 0.80. (Hint. First solve the corresponding problem for Z.)
*September 27, 2014*

**Simplify Practice.**

Well..these are the only two questions I'm stuck on.
*September 27, 2014*

**Simplify Practice.**

Write the difference 30 – (–12) as a sum, then simplify. Evaluate the following expression. Show all steps. 18 + 6m for m = 2
*September 27, 2014*

**Math problems.**

Use the order of operations to simplify the expressions in the next two questions. 15 – 6 • 9 ÷ 2 + 10 16. 4 • (6 + 3) + 5
*September 27, 2014*

**Math. I have a question.**

Ohhh...
*September 27, 2014*

**Math. I have a question.**

Tom wants to build a pen in his yard for his dog. He buys 800 ft of fencing. He concludes that he can only build a rectangle with sides of 300 ft and 100 ft.
*September 27, 2014*

**history**

In the Seven Years’ War, Spain fought on the side of France right? Native Americans were unable to resist successive waves of European immigrants at least partially because they were divided among themselves. this is true right?
*September 27, 2014*

**physics**

A block of mass m = 3.60 kg is pushed a distance d = 2.60 m along a frictionless, horizontal table by a constant applied force of magnitude F = 11.0 N directed at an angle è = 28.0° below the horizontal as shown in the figure below.
*September 27, 2014*

**chemistry**

The half-life of oxygen-15 is 124 s. If a sample of oxygen-15 has an activity of 4800 Bq, how many minutes will elapse before it has an activity of 600 Bq?
*September 27, 2014*

**math**

are the length of a side of a square and the area of the square related proportionally?
*September 27, 2014*

**math**

between which two square roots of integers can you find pi?
*September 27, 2014*

**Math**

explain why the expression (x^2+6) / (x^2+3) which seemingly can be simplified, actually cannot be simplified.
*September 27, 2014*

**Math**

Explain why the expression (x^2￼+ 6) ------- (x^3+3) , which seemingly can be simplified, actually cannot be simplified.
*September 27, 2014*

**algebra 2**

Solve each system of equation by grpahing? 3. y=-3x+6 2y=10x-36 4. y=-x-9 3y=5x+5
*September 27, 2014*

**math**

what is the prime factorization of 140
*September 27, 2014*

**Math one question?**

A scuba diver descends 350 ft and then another 225 ft. Express the diver’s final depth as an integer. –525 ft –575 ft 525 ft 575 ft
*September 27, 2014*

**Health**

What are example of a psychosomatic response, when talking about stress?
*September 27, 2014*

**Health**

Attributes about a person.
*September 27, 2014*

**Health**

What are positive attributes?
*September 27, 2014*

**Math--1 question**

Which word phrase could represent the variable expression 3d + 5? Let d = Beth's age. five more than Beth’s age times three three times Beth’s age minus five five times Beth’s age plus three three minus Beth’s age times five
*September 26, 2014*

**Anthropology **

Why is the term, "evolution" applied to Charles Darwin even today? and Why and how does it apply to a cultural anthropology? -Thank you
*September 26, 2014*

**biology**

Thank you!
*September 26, 2014*

**biology**

Why is the term, "evolution" applied to Charles Darwin even today? and Why and how does it apply to a cultural anthropology? -Thank you
*September 26, 2014*

**Math--1question**

write an integer to represent a loss of 5 yards in football. –7 –5 5 7
*September 26, 2014*

**workshop**

How will you apply these concepts in your educational, personal, or professional pursuits?
*September 26, 2014*

**art**

picture is called, A Stage Set with a Statue and Palace by Unknown artist Courtesy of the National Gallery of Art, Washington Question: Because of the use of value change in this image, the artist A. was able to make the image have no contrast. B. was able to emphasize only ...
*September 26, 2014*

**Calculus**

2. The slope of the tangent line to the graph of the exponential function y=2^x at the point (0,1) is the limit of (2^x-1)/x as x approaches 0. Estimate the slope to three decimal places. My work: (-1,0.5) (-0.5,0.586) (-0.9,0.516) (-0.999,0.5) (0,empty) (0.0001, 0.693) (0.001...
*September 26, 2014*

**sandycreek**

a student found that the weight of the naphthalene collected was less than the weight determined by difference. what would account for the smaller amount of naphthalene collected?
*September 26, 2014*

**History**

Where was Christianity founded? In present-day Palestine?
*September 26, 2014*

**Math.**

write an integer to represent a loss of 5 yards in football. –7 –5 5 7 Write the sum as a product, then simplify the product. (–8) + (–8) + (–8) + (–8) 2(–8) + 2(–8) = –30 4(–8) = –32 4(–8) = 32 5(–8) = –40 ...
*September 26, 2014*

**Accounting**

Anheuser-Busch InBev Companies, Inc reported the following operating information for a recent year. In addition assume that Anheuser-Busch InBev sold 200 million barrels of beer during the year. Assume that variable costs were 75% of the cost of goods sold and 40% of selling, ...
*September 26, 2014*

**Calculus**

1. Evaluate the function at the given numbers (correct to six decimals places). Use the results to guess the value of the limit,or explain why it does not exist. F(t)=( t^(1/3) - 1)/(t^(1/2) - 1) ; t= 1.5,1.2,1.1,1.01,1.001; The limit of F(t) as t approaches 1. My work: t=1....
*September 26, 2014*

**law**

Eagle Sales Company owns a warehouse, subject to a mortgage obtained from First National Bank. Separately, Eagle and First National obtain insurance policies from Good Hands Insurance, Inc., to cover the warehouse. Later, Eagle sells the property to Interstate Distribution ...
*September 26, 2014*

**Pre-Calculus**

Help please If f(x)=8x and g(x)=2x+1 find (fog)(x) 16x^2+8x 16x+1 16x+8 10x+1
*September 26, 2014*

**English B**

This question would need to go with a reading selection, please read over what they gave you and see if you can find the answer on your own. (It should be easy if you read the selection)
*September 26, 2014*

**Science**

Choose the explanation that does the following: (1) identifies the element used in carbon dating and (2) explains why the element is used. A. iodine-131; iodine is present in the thyroid glands, is radioactive, and has a very long half-life B. nitrogen-14; radioactive carbon ...
*September 26, 2014*

**math**

Indicate whether the following statement is True or False The number -3 is an integer and a rational number. True False Is the answer True?
*September 26, 2014*

**math**

Thank you
*September 26, 2014*

**math**

Sorry, is the answer D?
*September 26, 2014*

**math**

Which statement is true? A. All irrational numbers are also rational numbers. B. Half of the irrational numbers are also rational numbers. C. One-third of the irrational numbers are also rational numbers D. Irrational numbers cannot be classified as rational numbers. Is the ...
*September 26, 2014*

**algebra 2**

ohhh ok
*September 26, 2014*

**algebra 2**

y=3x-4 = 5 how did you get that i don'tunderstand
*September 26, 2014*

**algebra 2**

solve each system of equation by grpahing 3. y=-3x+6 2y=10x-36 4. y=-x-9 3y=5x+5
*September 26, 2014*

**algebra 2**

solve each system of equation by using a table 1. y=3x-4 y=-2x+11 2. 4x-y=1 5x+2y=24 how do you do these?
*September 26, 2014*

**math**

Which number is NOT rational? A. 5.85 B. 63.4 C. 8.52624*** D. 27.5 is the answer C?
*September 26, 2014*

**Math**

Which statement is false? A. Every integer is a real number*** B. The number zero is a rational number. C. Every irrational number is a real number. D. Every real number is a rational number Am I right about the a being the right answer? Thanks
*September 26, 2014*

**math**

Which of the following numbers is an example of an integer? A. -15 B. 3/5 C. √7 D. 0.252525 I choose answer A. Am I correct?
*September 26, 2014*

**math**

707.35
*September 26, 2014*

**math**

Sarah earned some money taking care of a dog. She charged $8.50 for washing the dog and $7 for walking the dog. She spent $1.15 on shampoo to wash the dog. What was Sarah’s profit from taking care of the dog?
*September 26, 2014*

**French**

And... Asseyez-vous, Marie, Laurent, et Amelie!
*September 26, 2014*

**French**

Thanks! Can it also work the other way around, like: Marie, Laurent, et Amelie, faites attention!
*September 26, 2014*

**French**

Faites attention, Marie et Laurent!
*September 26, 2014*

**French**

How do you give orders to someone in French using their name? Is this done in the same construction as in English?
*September 26, 2014*

**Global Business Management**

What are five global or regional trends that influence China? How do these trends affect marketing, finance, value chain, human resources, and economics, within China?
*September 26, 2014*

**math**

A train 100m long travelling at 72 km/h overtakes another train travelling in the same direction at 54sec. Find the length of the second train
*September 26, 2014*

**Physics**

Two rockets are flying in the same direction and are side by side at the instant their retrorockets fire. Rocket A has an initial velocity of +4800 m/s, while rocket B has an initial velocity of +9000 m/s. After a time t both rockets are again side by side, the displacement ...
*September 26, 2014*

**Physics**

From the top of a cliff, a person uses a slingshot to fire a pebble straight downward, which is the negative direction. The initial speed of the pebble is 7.56 m/s. (a) What is the acceleration (magnitude and direction) of the pebble during the downward motion? (b) After 0.950...
*September 26, 2014*

**Algebra 2**

Please please explain this !!!!!Plep x to the 2 power-5xs-24s to the 2 power
*September 26, 2014*

**Algebra 2**

Please help me!!!!!!! Explain what you done. x to the 3power + 7x to the 2 power-X7
*September 26, 2014*

**Algebra 2**

Y-1/x+3 =3/4 Can you explain your teps. Thank you
*September 26, 2014*

**Math(Algebra)**

Estimate the size of the bear population 50 bears, 1 year later 100 bears, 2 with taggs what is the estimated size of the bears can you Please wirite me the stepes so I cam understand what you did. Thank You so much foer your help.
*September 26, 2014*

**Pre-Calculus**

Yes,it did help! Thank You
*September 26, 2014*

**Pre-Calculus**

Help Please Solve the following system of equations. Round your answers to the nearest tenth. Your answer will be in the form: (M,N). Find M + N, rounded to the nearest tenth. 5x+2y=7 -2x+6y=9
*September 26, 2014*

**math**

explain
*September 26, 2014*

**math**

Think of a 135 digit number formed by writing the first 72 natural number side by side in a string.(i.e.) 1 2 3………70 71 72. Find the remainder when it is divided by 12. a. 2 b. 9 c. 0 d. 5
*September 26, 2014*

**History**

Does the Eastern Orthodox Church use the Gregorian Calendar?
*September 26, 2014*

**sat**

12 pitchers and 3 pitcher's is left handed, one radom chosen what probability the pitcher is left handed?
*September 26, 2014*

**physics**

A robot probe drops a camera off the rim of a 387 m high cliff on Mars, where the free-fall acceleration is 3.7 m/s2 . Find the velocity with which it hits the ground. Answer in units of m/s
*September 26, 2014*

**History**

What messages did Muhammad receive from the angel on ethics?
*September 26, 2014*

**HISTORY**

In the Seven Years’ War, Spain fought on the side of France right? Native Americans were unable to resist successive waves of European immigrants at least partially because they were divided among themselves. this is true right?
*September 26, 2014*

**Urgent geometry help**

What would be the converse of the ihop saying " come hungry leave happy" This was my if then statement: if you come hungry then you will leave happy. And for my converse I had: if you leave happy then you came hungry. ***is this right? Is it okay to to not put the &...
*September 25, 2014*

**math...**

A. Solve a-9=20 I did 20+9=29 29-9=20 a=29 Part b solve b-9>20 I did b-9>20 b-9+9>20+9 b>29 Part c how is solving the equation in part a similar to solving the inequality in part b? I put They are both using the same numbers. Part D I put A is equal to and b is ...
*September 25, 2014*

**math...**

Do I do 1.5+1.5=3? T<3
*September 25, 2014*

**math...**

Julia is allowed to watch no more than 5 hours of television a week. So far this week, she has watched 1.5 hours. Write and solve an inequality to show how many hours of television Julia can still watch this week. I did. 5÷1.5=3.33 T=time T<3.33 Julia can watch 3 ...
*September 25, 2014*

**Math-please check**

Determine if a true bioconditional can be written from each conditional statement. If not, gove a counterexample. 1. If a = b then |a| = |b| Is this true? 2. If y^2= 64 then 3y=24 Is this false? Because if you do -8 both of them aren't equal
*September 25, 2014*

**Math-please check**

Is it a?
*September 25, 2014*

**Math-please check**

The supershots scored over 75 points in each of ten straight games. The newspaper predicts that they will score more than 75 points tonight. Which form of reasoning is this conclusion based on? A. Deductive reasoning, because the conclusion is based on logic B. Deductive ...
*September 25, 2014*

**math...**

That's part b of the question part A. I already have with is solve a-9=20 I did 20+9=29 29-9=20 a=29 Part c is how is solving the equation in part a similar to solving the inequality in part b? Part d is how are the solutions different. I don't understand part c or d.
*September 25, 2014*

**math...**

I don't understand, can you please explain what you mean. Add 9 to what?
*September 25, 2014*

**math...**

Solve b-9>20 I did 29-9>20 But I'm not sure that's right.
*September 25, 2014*

**math...**

Graph.. <-3,-2,-1,0,1,2,3,4> the circle is on 2 and is an open circle. Which inequality matches the graph? A. 6w+6>18??? B. 6w+6>=18 C. 6w-6>18 D. -6w+6>14 The answer is A right?
*September 25, 2014*

**History**

What are some similarities between the prayers of Islam and Christianity?
*September 25, 2014*

**physics**

Sorry, I meant opthamologist.
*September 25, 2014*

**physics**

what physics topics affect a laser surgeon?
*September 25, 2014*

**government**

thank you
*September 25, 2014*

**government**

what inspired the constitutional convention? is it the article of confederation? when people saw it was inadequate and pretty much realized that it was useless. they had no power to regulate domestic affairs, no power to tax, etc also the rebellious farmers who rebelled in ...
*September 25, 2014*

**Oceans**

I am struggling with the same problem! i'm not sure how you solve it. I set years equal to 30,000 and placed the volume of the ocean = to 1,370 x 106 km3 but i don't know how to factor in the decrease of 120 meters
*September 25, 2014*

**physics**

Consider the following specific case of the system described in the example above. Suppose the angle θ is 78.0° and the mass of the ball is 7.00 kg.
*September 25, 2014*

**government**

what inspired the Constitutional Convention in 1787
*September 25, 2014*

**Chemistry**

The name given to the geometric arrangement of the reacting species at the time of reactions is called --------------------?
*September 25, 2014*

**History**

Who are Abraham, Moses, and Noah to Christians, in a single word?
*September 25, 2014*

**ssc**

10 minutes?
*September 25, 2014*

**History**

Thanks! I looked at the websites. So could it be said that the answer to my above question is mostly no?
*September 25, 2014*

**History**

Did Christians convert others using force?
*September 25, 2014*

**World History (Please, help me!)**

Or could it mean that the community will not support him?
*September 25, 2014*

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