cos(11pi/12) using Sum and difference identities
could someone explain finding cos(11pi/12) using Sum and difference Identities.
it must use one of...
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11/24/15
equation in point-slope form of a line that passes through (7,-6) with a slope of 1/2
equation in point-slope form of a line that passes through (7,-6) with a slope of 1/2?
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11/23/15
if a circle has an area of 7850 yards squared what if the diameter use 3.14 pi
please help this is very urgent due tomorrow Help
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11/23/15
Chloe's mother was 27 when she was born. The sum of their ages now is 51. How old is Chloe now?
This is for my 8th grade Algebra 1 class.
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11/23/15
find a equation perpendicular to y=7 and passing through (2,9)
i cant find the answer please help me.find a equation perpendicular to y=7 and passing through (2,9)
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11/23/15
he floor by
The floor of a rectangular cage has a length 4 feet greater than its width, w. James will increase bothdimensions of the floor by 2 feet. Which equation represents the new area, N, of the floor of...
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11/23/15
A 16 lb dog is to get 16 mg/kg of a medication. How many mg does he recieve?
A 16 lb dog is to get 16 mg/kg of a medication. How many mg does he receive?
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11/23/15
Two pumps of varying power help to fill a tank, after four hours, one breaks down.
An 8 horsepower pump can fill a tank in 8 hours. A smaller, 3 horsepower pump fills the same tank in 12 hours. The pumps are used together to begin filling the tank. After four hours, the 8...
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11/22/15
A large 16 oz box of rice is on sale for $1.89. An economy size 36 oz box costs $4.39 which is better buy?
Show work so set up both and see which is the better offer. The economy or the larger box
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11/22/15
Standard deviation
Standing eye heights mean= 1634mm
Standard deviation=66mm
What standing eye height separates lower 95% from upper 5%
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11/22/15
Help with this problem. How do you setup equation
The distance traveled by an object moving in straight line is given by s=t2-2t (that is t squared not t2), where s is in feet and t is in the time in seconds the object has been in motion. How...
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11/22/15
Distance problem involving bees flying at each other at varying speeds.
Two bees leave two locations 150 meters apart and fly, without stopping, back and forth between these two locations at average speeds of 3 meters per second and 5 meters per second, respectively....
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11/22/15
taking the assessment test for the first time, you score 56. After doing math jam, you score 78. What percent did math jam help you attain
This is a question from algebra and its a word problem that has to do with finding the percentage of a problem.
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11/22/15
How to find the closed form definition of a series?
How does one determine if the following series is arithmetic or geometric. If it is arithmetic, what is the common difference? If it is geometric, what is the common ratio? Using this information,...
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11/22/15
Finding the z-score for the middle 72% of the data
That separate the middle 72% of the data.
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11/22/15
Only 10% of the carbon-14 in a wooden bowl remains. How old is the bowl (rounded to the nearest hundred years)?
Only 10% of the carbon-14 in a wooden bowl remains. How old is the bowl (rounded to the nearest hundred years)?
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11/22/15
A rectangular field has an area of 1800 square meters and a perimeter of 180 meters. Find the dimensions of the field.
This question is from quadratic equation.
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11/22/15
In 3 years, 30% of a radioactive element decays. Find its half-life.
In 3 years, 30% of a radioactive element decays. Find its half-life.
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11/21/15
constant rate
a pool is being filled. the water level rises 4 inches in 6 hours. what is the constant rate?
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11/21/15
A box without a top is to be constructed out of a 9 by 12 inch piece of cardboard by cutting congruent squares from all four corners
(The sides are then folded up)
If the square in the corner is X inches, what is the expression for the length, width, and height of the box?
Write a function V(x) for the volume of the box?
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11/21/15
A recipe requires 4 bottles of ketchup to make 2 gallon of sauce. How many bottles of ketchup are needed to make 10 gallons of sauce
A recipe requires 4 bottles of ketchup to make 2 gallon of sauce. How many bottles of ketchup are needed to make 10 gallons of sauce
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11/21/15
i have a circle in a square the area of the circle is 81 cm2 find the diaginal of the square
circle is inscribed in the square touches each side of the square
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11/21/15
I don't understand: Compare taking a root and raising a power. Support your observations with your own examples.
This is Algebra II (for dummies - college level - only Pass or Fail, no credits given.)
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