04/07/17

Solve the inequality
(k+1)/ 2^k <= 1/8   please help 
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04/02/17

a car travels 780mi at a certain speed. if the speed had been 5 mph faster, the trip would have been made in 1hr less time. find the speed.
solve with quadratic formula 
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03/23/17

Gil rolls a number cube 78 times. How many times can he be expected to roll a number greater than 1?
It is 7th grade math. 
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03/22/17

How do you solve this physics problem
During a rodeo, a clown runs 8.0 m north, turns 55° north of east, and runs 3.5 m. Then, after waiting for the bull to come near, the clown turns due east and runs 5.0 m to exit the arena. What is... more
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03/20/17

Algebra II
Grandparents of a new-born child want to invest money in a college fund so that their grandchild will have $50,000 at the age of 18. The interest rate at ultimate bank is 4.25%.a). If the interest... more
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03/20/17

can you help me
three forces in a plane act on a object. The forces are 7 N, 11 N, 15 N. The angle between the 7 N and 11 N is 105 degrees, between the 11 N and 15 N forces is 147 degrees, and between the 15 N and... more
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03/20/17

How do you solve this integration problem
Evaluate the integral of dt/t√t from 1 to 4
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03/18/17

The cost of producing x units of a product is given by C(x)=600+90x−90ln(x),x≥1. Find the minimum average cost.
The cost of producing x units of a product is given byC(x)=600+90x−90ln(x),x≥1.Find the minimum average cost.
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03/15/17

Use differentials to approximate
Use differentials to find the approximate amount of copper used in the four sides and bottom of a rectangular copper tank that is 6 feet long, 4 feet wide and 3 feet deep inside if the sheet of... more
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03/12/17

Algebra two
What expression would be equivalent to 40x^7y^2/-8x^6y^4?
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03/07/17

The height of the cover of a speaker cabinet exceeds twice its width by 10 cm. If the area of the cover is 2100 cm , find its dimensions.
Must use quadratic formula 
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03/05/17

the specific heat of water is c=4186 j/kg.k. If the mass of the water was 0.2kg, how much energy did this cup lose over 300 seconds?
Q=mcΔT
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03/04/17

Use the following data: 11, 14, 15, 19, 10. What's the standard deviation?
 Round your answer to the tenths place.
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02/07/17

Integration in calculus
Find or evaluate the integral by completing the square. (Round your answer to three decimal places.) Boundary is from 2 to 3.    ∫ (2x-3)/ (√(4x-x2) dx
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02/07/17

Calculus. How to solve integrals?
Find the indefinite integral   ∫ t/(t4+49) dt
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02/05/17

Calculus simplyfing expressions
Simplify the expression   tan (sin-1 x)
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02/05/17

Derivatives calculus
Find the derivative of the function   y=3 tan-1 (x-(√1+x2))   1+x2  is  the square root   
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02/05/17

Derivatives calculus
Find the derivative of the function f(x) = cos-1(sin 2x)     Thanks  
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02/05/17

Find a limit expression for the area under f above (1,3)
f(x)= (2x)/(x^2+1) [1,3] 
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01/23/17

the demand function for a firm is given as P=60-0.5p and the supply function is p= 10+Q
1. find the equilibrium price and quantity. 2.calculate the consumer surplus and producer surplus at equlibrium
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01/18/17

Find Partial Derivative
Find the partial derivative of V = straight pi r2 h with respect to h. Give your answer in terms of a numerical value, using r = 12.2 and h = 68.6. Do not use scientific notation or include units.
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11/28/16

Nature Of Science And Physics 3
What is the height in meters of a 7 foot 2.0 inch tall person? m
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11/28/16

Nature Of Science And Physics 2
A car is traveling at a speed of 86 feet per second.(a) What is its speed in km/h? km/h(b) Is it exceeding the 50 mile per hour speed limit?
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11/21/16

Kyle wants to jump from a cliff that is 21.0 m tall.Rocks stick out 9.50 m from the base of the cliff.What must his horizontal speed be to clear the rocks?
Kyle wants to jump into the water from a cliff that is 21.0 m tall. There are rocks that stick out 9.50 m from the base of the cliff. What must his horizontal speed be in order to clear the rocks?
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11/18/16

optic science
Q monochromatic light is refracted from air into a medium of refractive index n. The ratio of the wavelengths of the incident and refracted waves is. A. 1:1                       B. 1:n C. n:1  ... more
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