04/08/19

Physics RPM question
A jet engine’s turbine blades are turning at a rate of 32,500 RPM. After 20 seconds the blades are turning at 53,450 RPM. What is the angular acceleration?
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04/08/19

Find the solution to the system of equations: 2x + 3y = - 1 and 4x + y = 24.
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04/08/19

Solve: 2x + y = 8 & x - y = 1
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04/08/19

Physics velocity question
An incline plane has an angle of 56 degrees and a coefficient of kinetic friction of 0.25 with a 10-Kg mass sliding down the incline. The initial velocity down the plane is 5 m/s and the mass... more
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04/08/19

Are the lines parallel, perpendicular or neither?
The slope of L1 is: 3The slope of L2 is: -3
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04/05/19

Magnitude of the frictional force acting on the box
A box of mass 60kg starts from rest at height h and slides down a rough slope of length 10m, which makes an angle of 25° with the horizontal. It undergoes a constant acceleration of magnitude... more
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04/05/19

A goose flies up from the lake with an average velocity of 8 m/s at an angle of 15 degrees. Find the components of the velocity.
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04/05/19

A rectangle is 1.5 times as long as it is wide. The perimeter of the rectangle is 75 inches. Find the width of the rectangle.
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04/05/19

Marta is 5 feet 4 inches tall, and casts a 12-foot shadow. A nearby tree casts a 25-foot shadow. How tall is the tree, rounded to the nearest foot?
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04/05/19

The difference between two numbers is 3. Twice bigger number added to three times smaller gives 21.
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04/04/19

A certain television is advertised as a 10-inch TV (the diagonal length). If the width of the TV is 6 inches, how many inches tall is the TV?
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04/02/19

a puppys wieght increases from 12 pounds to 15 pounds. By what percentage did the puppys weight increase
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04/01/19

A bank loaned out $30,000 part of it at the rate of 6% annual interest, and the rest at 9% annual interest. The total interest earned for both loans was $2,280.00. How much was loaned at each rate?
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04/01/19

on a particular map 1 inch represents a distance one half of a mile what distance in miles is represented by one third of an inch
on a particular map 1 inch represents a distance one half of a mile what distance in miles is represented by one third of an inch
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04/01/19

A car can travel 250 miles in the same time that it takes a bus to travel 100 miles. If the rate of the bus is 30 miles per hour slower than the car, find the average rate for each

A car can travel 250 miles in the same time that it takes a bus to travel 100 miles. If the rate of the bus is 30 miles per hour slower than the car, find the average rate for each
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04/01/19

math question for high school
ten employees randomly drew 10 cards that were numbered from 1 to 10 to detect which training session they will attend. those who drew even numbers had their training session before lunch. those... more
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03/31/19

log10(x+2) + log10(x) - 1 = log10(3/2)
How do you solve this equation for x?I tried the followinglog10(x+2) + log10(x) - 1 = log10(3/2)log10(x+2) + log10(x) - log10(10) = log10(3/2)log10((x+2)*x / 10) = log10(3/2)(x+2)*x / 10 =... more
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03/31/19

Solving of Algebraic Equation: (1019-x)^(0.5) - (2019+x)^(1/3) = 16
The first part of the Left Hand Side is a square root and the second part of it is a cube root. Its all about finding 'x' from this equation.... ... more
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03/27/19

What are some numerical methods to solve second order linear elliptic PDEs?
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03/19/19

The air in a room with volume 180 m3

The air in a room with volume 180 m3 contains 0.45% carbon dioxide initially. Fresher air with only 0.05% carbon dioxide flows into the room at a rate of 2 m3/min and the mixed air flows out at the... more
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03/18/19

What will the equation 2x^2 + 3y^2 -8x -18y + 35 = K represent if K=0?
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03/17/19

Calculus Volume Question
A triangular region in the first quadrant has vertices at the points (2, 1), (2, 7), and (4, 3). Find the volume of the solid of revolution generated by revolving this region around the line x = 2... more
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03/16/19

what is the velocity of an 8 kg lead shot put if it ahs 484 j of enrgy
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03/15/19

A desk is on sale for 33% off. The sale price is $402. What is the regular price
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03/14/19

3 equation problem

Jovita divides 17,000 into three investments a savings account paying 6% annual interest, a bond paying 9% and a money fund paying 11%. The annual interest from the three accounts is 1540 and she... more
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