Sunday

December 21, 2014

December 21, 2014

Total # Posts: 75,752

**Math**

What is the equation and the answer to717✖451
*October 29, 2014*

**Physics**

A 1400 kg car moving south at 10.0 m/s collides with a 2350 kg car moving north. The cars stick together and move as a unit after the collision at a velocity of 5.36 m/s to the north. Find the velocity of the 2350 kg car before the collision. m/s to the south
*October 29, 2014*

**HISTORY**

check my answers? Circle four of the following which occurred during the presidency of James Monroe. A. Louisiana Purchase B. conquest of Florida by Andrew Jackson C. financial panic of 1819 D. the Era of Good Feelings E. Missouri Compromise F. construction of the Monroe ...
*October 29, 2014*

**physics**

If 250 joules of work are performed by an engine using 600 joules of energy in 5 seconds, what is the efficiency of the engine?
*October 29, 2014*

**Physics**

A 3.5 g dart is fired into a block of wood with a mass of 22.8 g. The wood block is initially at rest on a 1.3 m tall post. After the collision, the wood block and dart land 2.6 m from the base of the post. Find the initial speed of the dart. m/s
*October 29, 2014*

**mateh**

of the pizza sold at a pizzeria 1/2 were cheese 1/4 were sausage and 1/6 were pepperoni. what fraction more of the pizza were cheese than sausage and pepperoni.
*October 29, 2014*

**math**

of the students in ms Martinez class 11/24 walk to school. another 3/8 of the students ride their bikes to school. what fraction more of students walk than ride their bikes to school.
*October 29, 2014*

**physics**

f Beth exerts a force of 157 . 9 N on the rope, what is the magnitude of the upward component of the force acting on the stake? Answer in units of N
*October 29, 2014*

**Math**

How would you estimate 566 divided by 81?
*October 29, 2014*

**English**

I think 7 is b
*October 29, 2014*

**English**

Okay,thanks but none of these are correct is not an option
*October 29, 2014*

**statistics**

. For patients with a certain disease the amount of certain protein in the blood is normally distributed with a mean of 130 and a standard deviation of 5. For patients without the disease the amount of that protein is normally distributed with a mean of 150 and a standard ...
*October 29, 2014*

**statistics**

A company wishes to make 1 ounce candy bars. According to government regulations, in order to label the candy bars as 1 ounce, at least 95 % of the bars must weigh 1 ounce or more. Our process standard deviation is .08 ounces. What do we need to make the mean weight be so that...
*October 29, 2014*

**math**

Jordan bought 6 8/10 yards of pink ribbon and 3 1/4 yards of purple ribbon. how much more pink ribbon than purple ribbon did she buy.
*October 29, 2014*

**POL201**

A district court is considered to be
*October 29, 2014*

**French**

How do you say "I'm walking"? "Je marche"?
*October 29, 2014*

**math**

Chris is determining the amount of raisins he will use for a raisin bread recipe. The ratio of cups of raisins: number of loaves Chris used is 3 raisins to 2 loaves. Which ratio is equivalent to the rate of raisins to loaves of bread that Chris can use?
*October 29, 2014*

**statistics**

If the mean I.Q. is 100 and the standard deviation of I.Q. scores is 15, then an I.Q. of 130 will have a z score (or standard score) of?
*October 29, 2014*

**accounting**

H Afa
*October 29, 2014*

**Physics**

A 5.5 kg object with a speed of 4.0 m/s collides head-on with a 13 kg object moving toward it with a speed of 3.0 m/s. The 13 kg object stops dead after the collision. (a) What is the final speed of the 5.5 kg object? m/s (b) Is the collision elastic? Yes No
*October 29, 2014*

**Chemistry**

Explain what would happen to the color of a dilute solution containing FeCl4- if you added a solution of sodium chloride, NaCl.
*October 29, 2014*

**Social Studies**

What was the role of the Native Americans during the Revolutionary War? A. Native americans did not fight in the Revolutionary War. B. More Native Americans fought with the British than with the Americans during the Revolutionary War. C. More Native americans fought with the ...
*October 29, 2014*

**Science**

Think about the factors that will influence the evolution of humans in the future. Name one factor that would exert influence through the process of natural selection and one factor that would exert influence through artificial selection. 1.natural selection: genetic ...
*October 29, 2014*

**Science**

Did hippos evolve from whales or did whales evolve from hippos?
*October 29, 2014*

**Economics**

I think its f= 100(P/G,12%,34)(F/G,12%,44)
*October 29, 2014*

**French**

Is it okay to say "je rentre a la maison" to say "I'm going home"?
*October 29, 2014*

**MATH FOR THE OFFICE**

THE BEGINNING OF THE WEEK A STOCK SOLD 29 3/8 PER SHARE AT THE END OF THE SAME WEEK IT SOLD FOR 31 2/8 WHAT WAS THE AMOUNT OF INCREASE PER SHARE?
*October 29, 2014*

**Algebra: Answer Check**

There doesn't seem to be a typo in the original expression. The answer is written with both the quotient and remainder.
*October 29, 2014*

**Algebra: Answer Check**

(x^2 - 8x + 6)/(x + 2) = x - 10 + ((26)/(x + 2))
*October 29, 2014*

**Algebra: Answer Check**

K(x) = -3x^4 + 5x^3 - x + 7 for x = -2. K(-2) = -79
*October 29, 2014*

**Calculus**

Find the points at which y = f(x) = x^11-6x has a global maximum and minimum on the interval 0 ¢®A x ¢®A 4 Round your answers to two decimal places. Global Maximum: (x,y) = (,) Global Minimum: (x,y) = (,)
*October 29, 2014*

**Maths**

Carl thought of 5 numbers and told Danny all the sums that could be made by adding the numbers in pairs. The list of sums is given below. What are the five numbers? 6,7,8,8,9,9,10,10,11,12 I thought of 34426 but it doesn't give the 11
*October 29, 2014*

**Physics**

20 g ball of clay traveling east at 3.0 m/s collides with a 30 g ball of clay traveling north at 2.0 m/s. What are the speed and the direction of the resulting 50 g ball of clay?
*October 29, 2014*

**Physics**

A 3.0-kg brick rests on a perfectly smooth ramp inclined at 34° above the horizontal. The brick is kept from sliding down the plane by an ideal spring that is aligned with the surface and attached to a wall above the brick. The spring has a spring constant (force constant...
*October 29, 2014*

**Calculus**

A balloon rises at the rate of 8 feet per second from a point on the ground 60 feet from an observer. Find the rate of change of the angle of elevation when the balloon is 25 feet above the ground. I have d(theta)/dt=(1/60)cos^2(theta)(8) How do I find theta?
*October 29, 2014*

**Physics**

I really need some help on this one
*October 29, 2014*

**Physics**

I do not know what formula to use
*October 29, 2014*

**Physics **

A 3.0-kg brick rests on a perfectly smooth ramp inclined at 34° above the horizontal. The brick is kept from sliding down the plane by an ideal spring that is aligned with the surface and attached to a wall above the brick. The spring has a spring constant (force constant...
*October 29, 2014*

**Algebra please help out**

Since the recipe lists 10 strawberries but Ed wants to use 30, he has to multiply each fruit by a factor of 3 in order to stay consistent with the fruit ratios in the recipe. So, for bananas it is 4 x 3= 12, 3 x 3 = 9 for apples, 6 x 3 = 18 for pears and 10 x 3 = 30 ...
*October 29, 2014*

**maths**

I am assuming by 28,7 you mean 28.7. This is a 90 degree triangle. You know the base to be 28.7 m. You need to find height which is the side directly opposite of the angle of elevation. Knowing the base value (which is adjacent to the angle of elevation), you can calculate the...
*October 29, 2014*

**can someone help me with biology**

thank u so much
*October 29, 2014*

**can someone help me with biology**

Statement 1. You should really seek extra help from your teacher if you are already unsure of q1 and q2 of whatever it is you are working on.
*October 29, 2014*

**can someone help me with biology**

2. In order for a gene to be transcribed or read, what needs to happen? (1 point) The promoter region of a gene is bound to its specific binding protein. The enhancer region of a gene is bound to its specific binding protein. The transcriber region of a gene is bound to its ...
*October 29, 2014*

**can someone help me with biology**

can u help me with other one
*October 29, 2014*

**can someone help me with biology**

*EXPRESS
*October 29, 2014*

**can someone help me with biology**

Statement 3 is correct. This is due to genomic equivalence. All cells in an organism carry the SAME genes but a cell maybe of different function or specialization because it may not EXPRESSES the same gene.
*October 29, 2014*

**can someone help me with biology**

1. Which of the following is true about the cells in a multicellular organism? (1 point) The cells contain different genes and therefore express different genes. The cells contain different genes, so they express only the genes they have in common. The cells contain the same ...
*October 29, 2014*

**can someone help me with biology**

What do you need help with?
*October 29, 2014*

** can someone help me with biology**

please
*October 29, 2014*

**Algebra please help out**

4 roses/bouquet x 4 bouquets = 16 roses. 6 carnations/bouquet x 4 bouquets = 24 carnations. The total number of flowers are (16+24) which = 40.
*October 29, 2014*

**Algebra**

20/15 is equivalent to 40/30 or 80/60 or 60/45. All you have to is choose a factor to multiply with and apply it to BOTH the numerator and denominator. 40/30 is merely 20/15 X 2, 80/60 is 20/15 x 3 and so forth.
*October 28, 2014*

**Calculus**

Find the point(s) (if any) of horizontal tangent lines: x^2+xy+y^2=6
*October 28, 2014*

**Geometry/Algebra**

What is the slope-intercept form of the equation y – 7 = –5/2 (x + 4)? y – 2 = –5/2(x + 2) y + 7 = –x + 5/2 y = –4/7+ 2 y = –5/2x – 3 (I keep coming up with y=5/2(x+4)+7 2. Distribute 5/2 y=(5/2x) + 10 + 7 3. Simplify. y=(5/2)x + 17 and ...
*October 28, 2014*

**Calculus HELP PLEASE!**

Need help on this problem please! Been stuck for half hour trying to figure it out but I can't get through a. A and B look to be similar but I don't know how to do them! Please help! ----------------------------------- The resistance of blood flow, R, in a blood vessel...
*October 28, 2014*

**Health**

The answers are B, A, and A.
*October 28, 2014*

**English**

So I thought she can be both round and static.
*October 28, 2014*

**English**

Round means that the character is developed. Static means the character doesn't change over the story, right?
*October 28, 2014*

**English **

Would Della from Gift of the Magi be a round and static character?
*October 28, 2014*

**BIology**

I answered your question.
*October 28, 2014*

**Physics**

A 3.0-kg brick rests on a perfectly smooth ramp inclined at 34° above the horizontal. The brick is kept from sliding down the plane by an ideal spring that is aligned with the surface and attached to a wall above the brick. The spring has a spring constant (force constant...
*October 28, 2014*

**Physics**

A 3.0-kg brick rests on a perfectly smooth ramp inclined at 34° above the horizontal. The brick is kept from sliding down the plane by an ideal spring that is aligned with the surface and attached to a wall above the brick. The spring has a spring constant (force constant...
*October 28, 2014*

**Physics**

A 3.0-kg brick rests on a perfectly smooth ramp inclined at 34° above the horizontal. The brick is kept from sliding down the plane by an ideal spring that is aligned with the surface and attached to a wall above the brick. The spring has a spring constant (force constant...
*October 28, 2014*

**Biology**

Highly folded membranes allow for more surface area to maximize absorption of key nutrients that a cell may require. An organelle with such highly folded membranes can be endoplasmic reticulum. The many folds result in more surface area for ribosomes to attach and thus ...
*October 28, 2014*

**Calculus**

A human cannonball is shot from a cannon at a speed of 21 meters per second at an angle of 20 degrees; how long before his height is 0? How far did he travel in that time?
*October 28, 2014*

**Algebra**

-2^3
*October 28, 2014*

**Algebra**

-2*3 = -8, right?
*October 28, 2014*

**Algebra**

K(x) = -3x^4 + 5x^3 - x + 7 for x = -2. K(-2) = -79
*October 28, 2014*

**Social Studies**

I don't understand Ms. Sue
*October 28, 2014*

**physics**

What is the angular momentum of a 2.43 kg uniform cylindrical grinding wheel of radius 12.5 cm when rotating at 1600 rpm? (b) How much torque is required to stop it in 8.00 s?
*October 28, 2014*

**algebra**

a stick 36 cm long is cut into two pieces in the ratio 1:2 how is each piece show the answer
*October 28, 2014*

**math**

A teacher is making multiple copies of a 1-page homework assignment. The time it takes her in seconds is 2 times the number of copies she makes plus 3
*October 28, 2014*

**Algebra**

Would x + 3 be a factor of 3x^3+ 5x^2 2x - 12? Ans: No, because there is a remainder of -54.
*October 28, 2014*

**Algebra**

(x^2 - 8x + 6)/(x + 2) = x - 10 + ((26)/(x + 2))
*October 28, 2014*

**Physics**

It does but i dont know how to get it in the box
*October 28, 2014*

**Physics**

A billiard ball of mass m = 0.250 kg hits the cushion of a billiard table at an angle of θ1 = 56.2° and a speed of v1 = 24.8 m/s. It bounces off at an angle of θ2 = 71.0° and a speed of v2 = 10.0 m/s. (a) What is the magnitude of the change in momentum of the...
*October 28, 2014*

**Calculus **

The mass, M, of a child can be approximated based on the height, H, of the child. The height of the child can be projected based on the child's age, A. a) State the chain rule for the derivative of the mass with respect to age (ie. find dM/dA) b) Suppose that an allometric...
*October 28, 2014*

**Calculus 1**

The resistance of blood flow, R, in a blood vessel is dependent on the length of the blood vessel, the radius of the blood vessel, and the viscosity of the blood. This relationship is given by R = 8Lη/πr^4 where r is the radius, L is the length, and the positive ...
*October 28, 2014*

**Calculus 1**

The resistance of blood flow, R, in a blood vessel is dependent on the length of the blood vessel, the radius of the blood vessel, and the viscosity of the blood. This relationship is given by R = 8Lη/πr^4 where r is the radius, L is the length, and the positive ...
*October 28, 2014*

**Physics**

A 3.0 kg brick rests on a perfectly smooth ramp inclined at 34 above the horizontal. The brick is kept from sliding down the plane by an ideal spring that is aligned with the surface and attached to a wall above the brick. The spring has a spring constant (force constant) of ...
*October 28, 2014*

**Calculus 1**

The mass, M, of a child can be approximated based on the height, H, of the child. The height of the child can be projected based on the child's age, A. a) State the chain rule for the derivative of the mass with respect to age (ie. find dM/dA) b) Suppose that an allometric...
*October 28, 2014*

**History**

Mrs.Sue please Help me D;
*October 28, 2014*

**History**

4. South Carolina responded to the Intolerable Acts by __________. (1 point) holding small “tea parties” in Charles Town and Georgetown sending representatives to the First Continental Congress drafting a state constitution and setting up a new government boycotting ...
*October 28, 2014*

**Algebra**

(x^2 - 8x + 6)/(x + 2) = x - 10 + ((26)/(x + 2))
*October 28, 2014*

**Math HELP!**

Point A(6,-2) is reflected over the x axis. Write the coordinates of A' A. (6,2) B. (6,-2) C. (-6,2) D. (-6,-2) Is the answer A? Thank you
*October 28, 2014*

**Social Studies**

so what is it?
*October 28, 2014*

**Social Studies**

What challenges must Cyprus overcome to reunify? Explain your ideas about this topic and suggest ways that Cyprus could work to solve its challenges of diversity.
*October 28, 2014*

**Social Studies**

Explain your ideas about this topic and suggest ways that Cyprus could work to solve its challenges of diversity.
*October 28, 2014*

**Math HELP!**

Use arrow notation to write a rule that describes the translation of a point from (5,6) to (6,11). A. (x,y) ----> (x+1,y+5) B. (x,y) ----> (x-1,y-5) C. (x,y) ----> (x-1,y+5) D. (x,y) ----> (x+1,y-5) Is the answer A? Thank you
*October 28, 2014*

**Math help**

Translate P(4,0) right 3 units and up 5 units. Give the coordinates of the image point. A. (-5,1) B. (1,-5) C. (5,7) D. (7,5) Is the answer D? Thank you
*October 28, 2014*

**math just practice**

um excuses me, what's that supposed to mean? I would like an apology please and im reporting you just called me dumb im never coming on this sight again I hate ms. sue
*October 28, 2014*

**math**

A rectangle has one side on the x-axis and two vertices on the curve y=6/{1+x^2}. Find the vertices of the rectangle with maximum area. Vertices =
*October 28, 2014*

**Statistics**

A simple random sample of 60 items resulted in a sample mean of 64. The population standard deviation is 16. a. Compute the 95% confidence interval for the population mean (to 1 decimal).
*October 28, 2014*

**Physic **

6. A car is moving along a straight road at 60 mph [26.7 meter/sec ]. The driver makes slams on his breaks locking them so that the car skid s to a stop. Assume a constant braking force due to friction , and a kinetic friction coefficient of 0.70 between the tires and the road...
*October 28, 2014*

**statistics**

Two different samples drawn independently from the two district yielded the following results: District X: 1 x = 648, 2 1 s = 120, and 1 n = 100 District Y: 2 x = 495, 2 2 s = 140, and 2 n = 90 Verify at 0.05 level of significance whether the sample results support the claim ...
*October 28, 2014*

**physics**

2. A spring of spring constant 220 N/m is sitting on a table. You pick it up and stretch it so that it is 8.0 cm longer than it was on the table top. How much work did it take you to stretch the spring? (Hint: This work is just negative the work done by the spring on you!)
*October 28, 2014*

**algebra math**

An employee makes an hourly rate plus any tips they earn. This tip employee made a total of $400 by working 28 hours last week. If $253 of their total earnings was their tips, what is their hourly rate of pay? a. $5.25 b. $5.61 c. $8.82 d. $9.04
*October 28, 2014*

**Physics**

A 3.0 kg brick rests on a perfectly smooth ramp inclined at 34 above the horizontal. The brick is kept from sliding down the plane by an ideal spring that is aligned with the surface and attached to a wall above the brick. The spring has a spring constant (force constant) of ...
*October 28, 2014*

**Physics **

A 3.0 kg brick rests on a perfectly smooth ramp inclined at 34 above the horizontal. The brick is kept from sliding down the plane by an ideal spring that is aligned with the surface and attached to a wall above the brick. The spring has a spring constant (force constant) of ...
*October 28, 2014*

**stats**

AARP reported on a study conducted to learn howlong it takes individuals to prepare their federal income tax return (AARP Bulletin, April 2008). The data contained in the file named TaxReturn are consistent with the study results. These data provide the time in hours required ...
*October 27, 2014*

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