Sunday

January 22, 2017
Total # Posts: 122

**Math**

Consider the following word problem: It took Eric 10 hours to drive to a job interview. On the way home, he was able to increase his average speed by 21 mph and make the return drive in only 7 hours. Find his average speed on the return drive. Step 1 of 3: Complete the ...

*July 10, 2016*

**statistics**

P(-1.86<z<0)=

*April 20, 2014*

**math**

Bill rented a truck for one day. There was a base fee of $18.95 , and there was an additional charge of .96 cents for each mile driven. Bill had to pay $135.11 when he returned the truck. For how many miles did he drive the truck?

*April 16, 2014*

**Math**

Assuming that the distribution is normal for weight relative to the ideal and 99% of the male participants scored between (–53.68, 64.64), where did 95% of the values for weight relative to the ideal lie? Round your answer to two decimal places.

*March 5, 2014*

**social studies**

10. Heinz is a recent immigrant from Germany. Which of the following will NOT contribute to his feeling of being American? (Points : 1)

*July 11, 2013*

**biology**

No. Individuals 1, 2, 3, and 5. AND Individuals 5, 6, 9, 10, and 11..... ...give the number of that individual = 5.

*April 7, 2013*

**biology**

Yes. (1) XA Xa (2) Xa Y (3) Xa Xa (4) XA Y (5) XA Xa (6) XA Y (7) XA Xa (8) XA Xa (9) XA X_ (10) Xa Y (11) Xa Y ii) If you chose "yes" above. If Individuals 5 and 6 have another son, what is the probability that the boy will be affected by the disease? 0.5

*April 7, 2013*

**biology**

No. iii) If you chose "no" above. Which set or sets of individuals is inconsistent with autosomal dominant inheritance? Individuals 5, 6, 9, 10, and 11 iv) If you chose "no" above. Can you change one individual from unaffected to affected and make this ...

*April 7, 2013*

**biology**

No.iii) If you chose "no" above. Which set or sets of individuals is inconsistent with autosomal recessive inheritance? Individuals 10, 11, 12, and 13 iv) If you chose "no" above. Can you change one individual from affected to unaffected and make this ...

*April 7, 2013*

**physics**

A car drives along a road section free of curves with speed v0 first through the hollow of a valley (radius of curvature r1) and then over a mountain top (radius of curvature r2). Let the driver have mass m. • What changes in his weight does the driver observe when ...

*March 25, 2013*

**Math**

a man 6ft tall walks at the rate of 5ft/sec toward a streetlight that is 16ft above the ground. At what rate is the length of his shadow changing when he is 10ft from the base of the light?

*June 8, 2012*

**Math**

a light shines from the top of a pole 50ft high. a ball is dropped from the same height from a point 30 ft away from the light. how fast is the ball's shadow moving along the ground 1/2 sec later? (assume the ball falls at a distance of s=16t^2 in t sec)

*June 8, 2012*

**science**

The force which is required to move an object of mass 500g to a distance of 4m

*April 25, 2012*

**physics**

A pulley with diameter D = 27in weighs 80 lb. It is mounted on a diameter d = 2-in axle. A weight of 1000 lb is to be lifted. If the coefficient of friction f = 0.1, what vertical pull force P will be needed?

*April 20, 2012*

**5th grade Math**

I need help I don't understand it

*March 27, 2012*

**5th grade Math**

Write a real word problem that you could solve by simplifying the expression 50-(2×9)

*March 27, 2012*

**English**

Help in writing a thesis and persuasive essay. I am horrible at doing this and would like someone to help me with it.

*March 5, 2012*

**English**

Do you believe in love at first sight? Romeo and Juliet evidently did. The play covers the time-span of only a few days. In this short period of time, Romeo and Juliet fall in love so passionately that they are willing to die if they cannot be together. craft a thesis about ...

*March 5, 2012*

**Algebra**

Currently, Jodi has a collection of 44 CDs and Veronica has a collection of 22 CDs. Jodi is adding 2 CDs per month to her collection; Veronica plans to add 4 CDs per month. a. Write a system of equations for this situation. Explain your method. b. Graph the system of ...

*February 15, 2012*

**physics**

an 80 kg man rides in a car which makes a turn. he moves along a curve with a radius of 20m at a constant speed of 20m/s. how much centripetal force acts on him?

*February 14, 2012*

**physics**

an 80 kg man rides in a car which makes a turn. he moves along a curve with a radius of 20m at a constant speed of 20m/s. how much centripetal force acts on him?

*February 14, 2012*

**Medical Coding**

the patient received preventive medicine services. the physician's fee is $150. the patient's copayment is $10 (of the $75 fee schedule). the payer reimburses the physician 80% of the $75 fee schedule.

*January 10, 2012*

**Chinese**

Where would I look to find out how to pronounce the Chinese name Xuelin?

*October 20, 2011*

**grammar**

No, a comma is not needed

*October 20, 2011*

**CHEMISTRY**

At 285mmHg +25 degrees celsius,a gas sample has a volume of 2270ml. what is the final pressure in mmHg at a volume of 1250ml and a temperature od 175 degrees celsius?

*August 20, 2011*

**college algebra**

Annual profit in thousands of dollars is given by the function, P(x) = -.1x2 + 50x - 300, where x is the number of items sold, x ¡Ý 0. describe the meaning of the number -.1 in the formula describe the meaning of the number -300 in the formula

*May 20, 2011*

**ethics**

Would I talk about what I am expected to do in a Amish family as well as how I live with no electricity etc..... This Question is about the recent question of subordinate member and 3 day journal question I asked.

*February 4, 2011*

**ethics**

I have to write a journal entry of a subordinate group member and it has to be a fictional first person account in the life of a subordinate group and it has to describe the events of a three day period. I am confused of how to start this paper out and how you would do it in a...

*February 4, 2011*

**ethics**

how would you start a paper out on a fictional first person account in the life of a subordinate group in the unites states?

*February 4, 2011*

**12th grade calculus**

How do I find the area bounded by the curver y = x^1/2 + 2, the x-axis, and the lines x = 1 and x = 4

*January 25, 2011*

**calculus**

How do I find the area bounded by the curve y = x^1/2 + 2, the x-axis, and the lines x = 1 and x = 4

*January 25, 2011*

**algebra**

find the possible values of a, if the distance between the points is 5, and the coordinates are (1,1) and (4,a)

*January 16, 2011*

**algebra 1**

solve: the square root of y = 5 + square root of 2 divided by 2

*December 22, 2010*

**physics**

A truck increases its speed from 8 m/s to 28 m/s over a distance of 120 m? How long does this take? Assume that the acceleration is constant

*November 17, 2010*

**algebra**

how do you get the ordered pair (22,-28) from the equation: 2a+b=16?

*November 15, 2010*

**geometry**

Find the area enclosed by the figure where a = 15 ft, b = 45 ft, c = 20 ft, d = 75 ft, and f = 40 ft.

*October 28, 2010*

**Science**

what activity does the cytoplasm do for the diatom

*October 6, 2010*

**algebra**

solve for the variable in the equation 3(-2 - 3x) = -9x - 4

*September 19, 2010*

**9th grade**

find the domain and the range of the relation age of person 65,36,36,29 books to read 42,37,37,17

*September 16, 2010*

**english**

What does it mean when the teacher says "There is no need to rekey the question(s)? Thanks in advance.

*July 15, 2010*

**calculus**

"use the intermediate value theorem to prove that the curves y=x^2 and y=cosx intersect"

*July 13, 2010*

**math**

what is the total surface area in square meters of a cylinder with a radius of 12m and height of 14m

*July 2, 2010*

**math**

toby the cat is stuck in a tree. billys dad placed a ladder 5 feet from the base of the tree and then leaned the ladder against the tree. the top of the ladder is where toby is sitting. if the ladder makes a 65 degree angle with the ground, how far up the tree is the cat?

*July 2, 2010*

**math**

what is the apothem of a regular hexagon with sides of 16 inches?

*July 2, 2010*

**disease**

Which Endocrine Gland is Involved, or responsible for the conditions tetany and also throtoxicosis?

*July 2, 2010*

**Algebra**

Given the equation: -0.2xsqrd+12x+11 Use the quadratic equation to determine the last day that tickets will be sold. x=1 is the day tickets go on sale.

*May 29, 2010*

**Algebra**

Would you not divide the big number by 100 to get C alone?

*May 21, 2010*

**Algebra**

Using the formula: w=Cr^-2 where C is a constant, and r is the distance that the object is from the center of Earth. W is the weight. 1- Suppose an object is 100lbs when it is at sea level. Find the Value of C that makes the equation true. Sea level is 3,963 miles from the ...

*May 21, 2010*

**Physical Chemistry**

I just would liek to know how to go about calculating it fromt eh equation k= Ae-Ea/RT..

*April 8, 2010*

**Physical Chemistry**

Assuming that the activation energy is about 111kjmol-1, calculate the fractional variation in the rate constant that would result from a temparature of 323.15 K

*April 8, 2010*

**Algebra2**

Simplify, help please sqrt-3 + sqrt27

*April 2, 2010*

**algebra 2**

sorry, i see #5 THANK YOU!

*April 1, 2010*

**algebra 2**

yes to #4 i don't know how they symbols don't come out when i type them one way. Can you help with #5? I didn't get it. Thank you.

*April 1, 2010*

**algebra 2**

are these answers right? 1. ã-121 = iã11 2. -2ã-144 = 2iã144 = 2i*12=24i 3. ã-75 = i=ã75 = iã5sq*3 = 5iã3 4. 5ãã-27 = 5iã27 = 5i...

*April 1, 2010*

**algebra**

simplify ^-6 * ^2 ^ is sq root sign

*April 1, 2010*

**Algebra 2**

yes thank you

*March 31, 2010*

**Algebra 2**

simplify ã15*ã42 _________ ã35

*March 31, 2010*

**Algebra 2**

Yes I got it right! Thanks

*March 31, 2010*

**Algebra 2**

Find the real roots of the eqution 16x2(squared) = 81

*March 31, 2010*

**science**

would radiation levels in natural versus man-made objects be a good science fair project? I can borrow a geiger counter

*March 22, 2010*

**science**

what is radiation?

*March 22, 2010*

**Physics**

I assume they refer to Moment of force when it says momenta?

*February 12, 2010*

**Physics**

Ha Ha sorry, momenta.... My typo... I am sure they were dazed, I have been there...

*February 12, 2010*

**Physics**

During a soccer game two players come from the opposite directions and collide when trying to head the ball. They come to rest in midair and fall to the ground. Describe their initial moments?

*February 12, 2010*

**physics**

A pole-vaulter runs toward the launch point with horizontal momentum. Where does the vertical momentum come from as the athlete vaults over the crossbar?

*February 12, 2010*

**physics**

Thanks!!

*February 12, 2010*

**physics**

During a tennis serve, the racket of a tennis player continues forward after it hits the ball. Is momentum conserver in the collision? Explain, defining the system.

*February 12, 2010*

**physics**

The speed of a basketball as it is dribbled is the same when the ball os going toward tthe floor as it is when the ball rises from the floor. A. Is the basketball's change in momentum equal to zero when it hits the floor? B. If not, in which direction is the change in ...

*February 12, 2010*

**Math**

In Lloyd's pocket are 6 coins: 3 dimes, 2 nickels, and 1 penny. If Lloyd randomly takes two coins out of his pocket, what is the probablity that he will take out 11 cents? The book shows the answer 1/5, but my question is wouldn't the number of each coin come into play?

*January 26, 2010*

**science**

A force of 625 N is applied to a hydraulic jack piston that is 0.04 m in diameter. If the piston which supports the load has a diameter of 0.60 m, how much mass can be lifted by the jack? Ignore any difference in height between the pistons

*January 17, 2010*

**Physics**

The speed of a basketball as it is dribbled is the same when the ball os goping toward tthe floor as it is when the ball rises from the floor. A. Is the basketball's change in momentum equal to zero when it hits the floor? B. If not, in which direction is the change in ...

*November 30, 2009*

**physics**

A charge Q is located inside a rectangular box. The electric flux through each of the six surfaces of the box is: Ö1 = +1480 N · m2/C, Ö2 = +2240 N · m2/C, Ö3 = +4220 N · m2/C, Ö4 = -1780 N · m2/C, Ö5 = -3550 N · m2/C...

*September 3, 2009*

**physics**

A small plastic ball with a mass of 7.00 10-3 kg and with a charge of +0.162 µC is suspended from an insulating thread and hangs between the plates of a capacitor (see the drawing). The ball is in equilibrium, with the thread making an angle of 30.0° with respect to ...

*September 3, 2009*

**physics**

Two identical small insulating balls are suspended by separate 0.23-m threads that are attached to a common point on the ceiling. Each ball has a mass of 8.70 10-4 kg. Initially the balls are uncharged and hang straight down. They are then given identical positive charges and...

*September 3, 2009*

**Biology**

I need help. I have searched the web for information of bacterial plate cultures but I cant really find anything. If you could refer me to a good website or explain it to me that would be great. Thank you so much. My question is posted below. Search the web, find, and examine ...

*July 17, 2009*

**Micro Econ**

How can you explain the MR=MC equation as the PROFIT MAXIMIZING output level?

*July 5, 2009*

**Micro Econ**

How can you explain the MR=MC equation as the PROFIT MAXIMIZING output level?

*July 5, 2009*

**Micro Econ**

Thanks, I thought that was it, but it seemed too simple.

*June 30, 2009*

**Micro Econ**

States do not currently collect sales taxes on consumer pruchases on the Internet. Who, consumers or suppliers, benefits from the absence of such taxes? Explain please.

*June 30, 2009*

**economics**

What can't a perfectly competitive market earn economic profits in the long run?

*June 29, 2009*

**intermediate econ**

You buy only apples and bananas. Your budget is such that you can purchase 3 apples and 4 bananas or 9 apples and 2 bananas. Write down the equation for the budget line with bananas on the y-axis. Is that equation unique? I believe the answer is: 2y+9x=4y+3x yes, it is unique ...

*June 23, 2009*

**Computer Programming Design**

I had the same project in my computer design class. Thankfully I got the whole thing right. It is hard to explain in words how it is done.

*May 2, 2009*

**chemistry**

ionic componuds tend to have higher boiling points than covalent compounds . both ammonia NH3 and methane CH4 are covalent compounds but yet the boiling point of ammonia 130C is higher than methane. what might account for this difference please help thank you

*April 1, 2009*

**elementary algebra**

-2+4(x-1)= -7-4x

*December 14, 2008*

**government**

no person is above the law is what principal of the constitution

*December 4, 2008*

**College History**

During the 1960s the United States had become a more open,more tolerant- in a word, freer country. Defend or refute that statement.

*November 19, 2008*

**College HIstory**

Was the US correct to think of the Soviet Union as expansionist and as a threat to American liberty?

*October 24, 2008*

**History**

I think..maybe they would. Im reading about FDR and his new deal. Focusing on the people and states really helped the e comony as a whole.

*October 24, 2008*

**History**

Do you think that the United States will ever revert to a system where the states are more important than the national government?

*October 24, 2008*

**Ethnic Diversity**

and yet again, same college, same class, same subject. when i did a general search everything i found was from 2002 or so. this site helped a lot. thanks everyone.

*September 2, 2008*

**math**

12.42/(17-n)=4.14 what is the value of n

*July 18, 2008*

**math**

12.42/(17-n)=4.14

*July 18, 2008*

**(light)**

an object 5 millimeters high is loccated 15 millimeters in front of a plane mirror. How far from the mirror is the image located?

*July 15, 2008*

**Math**

I think it is 15 hrs, if you take 60x15=900 and then take 60 div 900= 15 hrs. You might want to make sure from someone else but that is what I really do think. Good Luck

*April 26, 2008*

**Math**

Find the decimal equivalent of the mixed number. 8 7/8

*March 23, 2008*

**Math**

You are making rectangular posters 24 in. by 15 in. How many square feet of material will you need for 6 posters?

*March 23, 2008*

**Math**

The circular surface of a table has a diameter of 7 ft. What will cost to have the top refinished if the company charges $6 per square foot for the refinishing? Use 3.14 for ƒàƒnand round your answer to the nearest cent.

*March 23, 2008*

**Math**

Round to the indicated decimal place. 6.949 tenths

*March 23, 2008*

**Math**

Arrange in order from smallest to largest. 3.07, 3.0712, 3.078, 3.0717, 3.072, 3.071

*March 23, 2008*

**Math**

Find the least common multiple of 12, 18, and 30.

*March 23, 2008*