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Questions Asked on December 31, 2011

Prove thatcos(A+B) + sin(A-B) = 2sin(45°+A)cos(45°+B)
1. 2 answers
2. asked by Kewal
3. 3,984 views
You have $47 to spend on music and movie downloads. Each album download costs $7 and each movie download costs $8. Write and
1. 2 answers
2. asked by Jane
3. 3,718 views
Please explain how to solve:Reid and Maria both play soccer. This season, Reid scored 4 less than twice the number of goals that
1. 1 answer
2. asked by Jane
3. 3,443 views
On March 1, 2003, a company paid a $16,200 premium on a 36-month insurance policy for coveragebeginning on that date. Refer to
1. 1 answer
2. asked by Allison Anderson
3. 3,181 views
the ratio of the number of marbles Zali had to the number of marbles Muthu had was 3:4.Muthu gave half of his marbles to
1. 1 answer
2. asked by Da S
3. 2,260 views
A college professor believes that students take an average of 15 credit hours per semester. A random sample of 24 students in
1. 2 answers
2. asked by Dorothy
3. 1,822 views
An equilibrium mixture of SO2,SO3 and O2 gases is maintained in a 11.5 L flask at a temp at which Kc=55.2 for the rxn shown
1. 1 answer
2. asked by racheal
3. 1,790 views
Write 84 as a product of a prime number
1. 1 answer
2. asked by Leslie
3. 1,693 views
Which property is illustrated by the equation (rs)t=r(st)?A) associative B)Communtative C)Distributive D)Identity Help me please
1. 4 answers
2. asked by John
3. 1,568 views
Monte has a small rectangular herb garden that has a length 3 yd longer than twice its width. If the area of the garden is 50
1. 2 answers
2. asked by Lauren
3. 1,407 views
What is the precipitate of K2CrO4 +Al2(SO4)3 ?
1. 1 answer
2. asked by Racheal
3. 1,323 views
I'm trying to verify the identity: (sin^2 x)/(2)= (secx-1)/(2secx)
1. 1 answer
2. asked by Maria
3. 1,249 views
Scientists use the Beaufort wind scale to approximate wind speed. The formula is B= 1.69 sqrt(s+4.45) -3.49 where B is the
1. 3 answers
2. asked by Mallory
3. 1,224 views
The Supreme court is most likely to grant a hearing when a case involves:A.an issue of state law as opposed to an issue of
1. 2 answers
2. asked by Calvin
3. 1,195 views
from a base elevation of 9800 feet a mountain peak in colorado rises to the summit elevation over a horizontal distance of
1. 2 answers
2. asked by steve
3. 1,118 views
Q.1. Define Collection Development. How the acquisition of Library Material can be economical, rapid, transparent and accurate?Q
1. 1 answer
2. asked by hammad
3. 1,088 views
7th Grade7th grade Grades (1st quarter to 4th quarter): English 7 - 99 Math 7 - 91 Social Studies 7R - 91 Science 7R – 80 Fine
1. 11 answers
2. asked by Laruen
3. 1,082 views
make five observations about life in the backwoods of upper Canada. what jobs did pioneers do for themselves that we would never
1. 1 answer
2. asked by amy
3. 1,035 views
I'm just curious but like is 2400 is the highest score for SAT's, i know for other SAT's 800 is the highest. i think 32 is the
1. 3 answers
2. asked by Laruen
3. 966 views
1) With reference to electrochemical corrosion, explain the following phenomena:i) Anodic Polarization ii) Cathodic Polarization
1. 0 answers
2. asked by Claire
3. 909 views
3 numbers are in the ratio 3:5:7. if the larger number is multiplied by 3, the result is 26 more then the sum of the first and
1. 1 answer
2. asked by Jenipher
3. 822 views
The equation of a circle C isx^2 +y^2 +2x−4y−44=0 x^2+y^2+2x-4y-44 =0 What is its center (h,k) and its radius r
1. 1 answer
2. asked by Dana
3. 770 views
Air in a diesel engine cylinder is quickly compressed from an initial temperature of 21.1°C, an initial pressure of 1.00 atm,
1. 1 answer
2. asked by maria
3. 712 views
a wire is bent into a rectangle.the ratio of the length of the rectangle to its breadth is 9:5.if the total length of the wire
1. 1 answer
2. asked by Da S
3. 679 views
A at disk of material has the same mass as the Earth, 5.98E+24 kg, and has a radius of 6.25 E+07 m. Point A islocated a distance
1. 4 answers
2. asked by Sarah
3. 671 views
Hi I answered all my question for this lesson correct only 4 were incorrect I really need help correcting themHere is my work
1. 2 answers
2. asked by Anonymous
3. 661 views
For a chem lab, i was given a table that results when pairs of chemical solutions are mixed.For each set of compounds that
1. 2 answers
2. asked by Teneal
3. 653 views
calculus problem is u = 7i +9j + 2 k and v = -7i -9j - 2 k. and my ans is -135 how to double check
1. 5 answers
2. asked by linda
3. 635 views
Juan makes $6.50 an hour plus an extra $15.25 per week. Last week he earned $47.75. Look at this equation that represents Juan's
1. 1 answer
2. asked by alexis
3. 604 views
If the density of a substance is 15.2 g/mL, what is the density in cg/kl?
1. 2 answers
2. asked by Ben
3. 601 views
Kayla is 5 feet tall, and Maria is 5.5 feet tall. Kayla's shadow at 3pm outdoors measured 3feet. The length of each persons
1. 2 answers
2. asked by Jazmin
3. 592 views
Jakie wants to plant 2 1/2 rows in her garden .she needs 3 1/4 ounces of seed for each row . How many total ounces of seeds
1. 1 answer
2. asked by Leslie
3. 575 views
In respect to covalent bonding, what does it mean if there's an unshared or lone pair of electrons?
1. 1 answer
2. asked by Zoe
3. 554 views
a sum of money is shared between Alice,Gahya&Sita in the ratio 3:2:4.if Gahya receives $4287.50,how much money do Alice and sita
1. 1 answer
2. asked by Da S
3. 550 views
1. x^2+6x-4=02. greater common factor -18a^3,3a^5 3. Solve 10x^4-11x^3+3=0
1. 1 answer
2. asked by Pinky P
3. 544 views
Total number of scores is 45. Alex scored 9. What percent of the total number of points did Alex score?
1. 1 answer
2. asked by Matthew
3. 537 views
James travels 624 miles in 8 hours ona train at a constant rate of speed. How many miles does he travel in 3 hours?
1. 4 answers
2. asked by Mike
3. 532 views
Mrs Koh bought some tuna and sardine from a fishmonger.the ratio of the mass of tuna to the mass of sardine was 1:2.if she
1. 2 answers
2. asked by Da S
3. 518 views
A city has a scale model of the solar system nearly 6 km long. The model's scale is 1 km : 1 billion km.a. Earth is 150,000,000
1. 1 answer
2. asked by Anonymous
3. 502 views
I believe the answer is 5 months; however, I did it the long way. Explain how to find the answer.Tom has a collection of 30 CDs
1. 1 answer
2. asked by Jane
3. 481 views
What is the answer to: The plane was purchased new in 2006; therefore, x = 0 represents the year 2006. X - axis (horizontal)=
1. 1 answer
2. asked by Stephen
3. 481 views
Do i really have to be in AP or IB classes in order to get into Yale School of Arts or no don't worry you don't have to take AP
1. 1 answer
2. asked by Laruen
3. 476 views
It took mike 2 2/5 hours to drive home. His sister drove same distance in 3/8 of mikes time how long did the drive take mikes
1. 1 answer
2. asked by James
3. 473 views
The function H(x) = 2.75x + 71.48 can be used to predict the height in cm of a woman whose humerus is "x" cm long. Predict the
1. 1 answer
2. asked by Angie
3. 463 views
How did the panama canal affect world relations
1. 1 answer
2. asked by M.
3. 449 views
Tell us about an experience, in school or out, that caused you to rethink or change your perspective. What impact has this had
1. 1 answer
2. asked by DDDD
3. 439 views
Jeremy can type 144 words in 144 min. How many words can he type in 10 min at the same rate. Show work
1. 1 answer
2. asked by kevin
3. 437 views
discuss the nutrition and health promotion contribution to family health and development
1. 1 answer
2. asked by sofia
3. 432 views
I think that Item 15..."I’ve heard that it’s better to not eat cheeseburgers every day, but it’s extra protein and protein
1. 1 answer
2. asked by oldie
3. 432 views
You are asked to build a circular running track of length 1/4 km. To the nearest meter, what would bethe radius of the track?
1. 1 answer
2. asked by Rivers
3. 427 views
It took mike 2 2/5 hours to drive home. His sister drove same distance in 3/8 of mikes time how long did the drive take mikes
1. 3 answers
2. asked by James
3. 422 views
Jakie wants to plant 2 1/2 rows in her garden .she needs 3 1/4 ounces of seed for each row . How many total ounces of seeds
1. 1 answer
2. asked by Leslie
3. 416 views
Charles's support came from the north and west of england, while par;iament's came form the south and east. what influence did
1. 2 answers
2. asked by amy
3. 401 views
Put these numbers from least to greatest.-21, 60, -62, 9
1. 2 answers
2. asked by James
3. 400 views
Jakie wants to plant 2 1/2 rows in her garden .she needs 3 1/4 ounces of seed for each row . How many total ounces of seeds
1. 1 answer
2. asked by Leslie
3. 398 views
A particle is displaced from the point ( 4 m, 12 m ) to the point ( 9 m, 1 m ) in 30 seconds.Calculate the direction (with
1. 1 answer
2. asked by tom
3. 389 views
A wall hanging is x inches wide and has a height of 4x inches. If the perimeter is 40inches, what is the height in inches?Please
1. 1 answer
2. asked by Jessica
3. 377 views
for the equation 4 cos alpha - square root 12 = 0
1. 1 answer
2. asked by Anonymous
3. 373 views
How did Obama got accepted to Harvard?
1. 5 answers
2. asked by Laruen
3. 371 views
out of the pairs of orbitals which has a higher amount of energy4f or 6s
1. 1 answer
2. asked by chemistry
3. 370 views
in what ways were chiefs important to the welfare of the group they led
1. 2 answers
2. asked by Aiman
3. 370 views
Does anyone have this exam? I have finished all exams but this one n just can't seem to get my mind in it.
1. 1 answer
2. asked by Windy
3. 370 views
A hanging plant has a mass of 3.60 hung by 3 ropes with a tension of 29.4 N on each strand, what angle does each rope make with
1. 1 answer
2. asked by Kasie
3. 368 views
1. Solve (x+19)(x-11)(x+18)>02. Solve the equation 2x^2-x=-7
1. 1 answer
2. asked by Pinky P
3. 362 views
Jakie wants to plant 2 1/2 rows in her garden .she needs 3 1/4 ounces of seed for each row . How many total ounces of seeds
1. 1 answer
2. asked by Leslie
3. 350 views
1. Solve (x+19)(x-11)(x+18)>02. Solve the equation 2x^2-x=-7
1. 1 answer
2. asked by Pinky P
3. 343 views
1. Solve (x+19)(x-11)(x+18)>02. Solve the equation 2x^2-x=-7
1. 1 answer
2. asked by Pinky P
3. 338 views
Evaluate this function for x=-3f(x)= 4x^3-5x^2/2x-4
1. 1 answer
2. asked by Lauren
3. 337 views
What is 20% of $1300?
1. 1 answer
2. asked by Rhonda
3. 334 views
How would you make 26 ft 7 ft & 360 ft into a proportion
1. 1 answer
2. asked by Anonymous
3. 319 views
What is the range of y= -(x-2)^2+2 ?
1. 5 answers
2. asked by Erin
3. 306 views
some properties of quardant
1. 1 answer
2. asked by nalini
3. 250 views

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