Saturday

April 19, 2014

April 19, 2014

Total # Posts: 32

**Algebra 1**

Thanks

**Algebra 1**

A bird sitting 16 feet above the ground in an apple tree dislodges an apple. After how many seconds does the apple land on the ground? my text book gives this equation: h = -16t^2 + vt + s (t = secs, v= vertical velocity, s = initial height) so i wrote: h = -16t^2 + vt 16 I...

**Algebra 1**

Thanks.

**Algebra 1**

A kicker punts a football from 3 feet above the ground with an initial velocity of 47 feet per second. 1. Write an equation that gives the height (in feet) of the football as a function of the time (in secs) since it was punted. Okay. According to my text book, h = -16t^2 + vt...

**Algebra 1**

That's right.. sorry 'bout that. Thanks, Mate.

**Algebra 1**

2500ft^2 x 1gal/(0.134ft^2)=~ 186567 gal. Right?

**Algebra 1**

Could you maybe walk me through this Algebra word problem? Here is the problem: Anita wants to put a moat around her rectangular castle. The castle is 45 ft by 60 ft. Let m be the width of the moat. 1. Write a polynomial that represents the total area of the castle and moat. 2...

**Algebra 1**

I need to factor the expression z^2 + 15z - 54 I think it's either (z - 9)(z + 6) OR (z - 6)(z + 9) Can you help me out? Thanks!

**Algebra 1**

Thanks

**Algebra 1**

I need to factor the expression t^2 + 4tv + 4v^2 I got this answer: (t + 2v)(t + 2v) Check my work? Thanks!

**Math**

A gold bar is exactly 31 cm long. You want to cut the bar into smaller segments so that one or a combination of segments can add up to every whole number of centimeters from 1 to 31. What is the least number of cuts you could make and what are the lengths of each smaller piece?

**Math**

According to order of operations, you have to multiply/divide first. Because multiplying comes before dividing in this problem, you multiply 5x9 to get 45. You now divide. 45/56 is rounded to about .80, and you add 5 to that to get 5.80

**math**

Hi, Rhianna. What you would first do is multiply: 7x7x7x7x7x7, which would equal 117,649. 7x7x7x7x7x7x7 would equal 823,543. 117,649/823,543 would finally equal 0.14285714285

**Math**

If a data set is: 18, 9, 14, 10, 15.... What would be the mean absolute deviation? What I got was 13.2, but it seems incorrect. Please help!

**Math**

An electron accelerates from rest to the right, in a horizontally directed electric field. The electron then leaves the electric field at a speed of 4.0 × 106, entering a magnetic field of magnitude 0.20 T (Tesla) directed into the screen. Calculate the magnitude and di...

**Calculus and Vectors**

Show that proj(b⃗a⃗) =[(a⃗⋅b⃗)/(b⃗⋅b⃗)](b⃗)

**Europe**

The answer is water pollution.

**physics**

A person throws a rock straight up into the air. At the moment it leaves the person's hand it is going 91 mph. When the rock reaches its peak, how fast is it going and what is the magnitude and direction of its acceleration? Ignore air drag

**Science**

What is a galaxy with no definite shape or size called?

**English**

1)Caliban is a sort of monster- half man, half beast. There is hostility betweem Prospero and Caliban. 2)Thanks to his magic art, Prospero subdues all the spirits living on the island, including Caliban, into his service. 3)Caliban claimed to own the island. It belonged to him...

**geometry**

Triangle PQR has vertices P(1,2), Q(25,2) and R(10,20). Find the coordinates of the centroid. Find the coordinates of the circumcenter. Find the coordinates of the orthocenter. Find the equation of the line.

**College Algebra **

Staples recently charged $17.99 per box of Pilot Precise rollerball pens and $7.49 per box for Bic Matic Grip mechanical pencils. If Kelling Community College purchased 120 such boxes for a total of $1234.80, how many boxes of each type did they purchase?

**Algebra**

{1,3,5}¿

**math**

a party suppilies store recored net sales of $423,400 for the year. the store's begining inventory at retail was $105,850 and its ending inventory inventory at retail was $127,020.what would be the inventory turnover at retail,rounded to the nearest tenth?

**Math**

A rectangular room has a perimeter of 94 and area of 546. What are the dimensions of the room?

**physics**

Two 6.7kg bowling balls, each with a radius of 0.14m , are in contact with one another.What is the gravitational attraction between the bowling balls?

**computers**

what network covers small ares, such as a group of buildings or campus?

**ETH-125 UofP**

Same question. What other methods of measurment do sociologists use to calculate prejudice?

**PrecCalculus**

How do I find the domain of the funcition algebraically and support my answer graphically? f(x) = sqrt(x2) + (4)

**biochemistry**

I need help w/ a question: Insulin protein has 2 polypeptides A and B. Human and duck insulins have the same sequence except for six below. Is the pI of human insulin higher or lower than duck insulin? AA seq. A8 A9 A10 B1 B2 B27 Human Thr Ser Ile Phe Val Thr Duck Glu Asn Pro ...

**Science**

Will somebody please tell me the nitrogen,H20, and carbon formulas???? Thanks!

**Science**

Will somebody please tell me the following formulas: Nitrogen Water (H20) and carbon?? Thanks

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