05/28/20

Quick Question on Energy
A wagon is pulled by a force of 38.0 N on the handle at an angle of 42° with the horizontal. If the wagon is pulled in a circle of radius 25.0 m, determine how much work is done?
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05/27/20

Is it possible for two numbers to have a difference of 8, and a sum of 1?
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05/27/20

Complete the equation of the line through 
Complete the equation of the line through (1,4) (2,2) .Use exact numbers.
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05/26/20

A farmer bought a number of pigs for $210. However, 5 of them died before he could sell the rest at a profit of $4 per pig. His total profit was $65. How many pigs did he originally buy?
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05/26/20

Math problem!!!!

Elmer has a collection of 300 fossils. Of these, 21%, percent are fossilized snail shells. How many fossilized snail shells does Elmer have?Needs to be solved fast!!!
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05/26/20

A bag contains 3 red marbles, 6 blue marbles and 4 green marbles. If three marbles are drawn out of the bag, what is the probability, to the nearest 1000th, that all three marbles drawn will be blue?
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05/25/20

what is the rate of the boat in Still water and the rate of the current?
A motorboat takes five hours to travel 150 km going upstream. The return trip takes three hours going down stream. What is the rate of the boat in still water and what is the rate of the current?
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05/16/20

f a boat goes downstream 72 miles in 3 hours and upstream 60 miles in 6 hours, the rate of the river and the rate of the boat in still water respectively are ________?
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05/13/20

Feet per secounds
Mary runs at a constant speed of 18feet per second, while her little brother Billy runs at a constant speed of 14 feet per second. How far would Mary have to run to catch up with Billy if she gave... more
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05/12/20

Use linear approximation

use linear approximation of the function f(x)=3√x at x=8 to estimate the value of 3√8.06
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05/12/20

Volume of Rotations
Calculate the volume of a solid generate by the area bounded by y=2x, y=6-x and y=0 rotated about the line x=8.Here is what I have. I am not sure if this is correctas y goes from 0 to 4π ∫ R2-r2... more
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05/08/20

Write the cubic polynomial function f(x) in expanded form with zeros −4, −2, and 3, given that f(0)=−48

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05/08/20

I need help with this geometry for my daughter

I need to find the slope of the line through each pair of points1. ( 16, 5 ) , ( 16, 15 ) 2. ( 4,11 ), ( -12 , -1 )( 16,-11), ( -14 , -18 ) ... more
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05/07/20

Find two linearly independent power series solutions for the DE
Find two linearly independent power series solutions for the DE, giving three nonzero terms for eachy''+y'+xy=0
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04/30/20

Use the matrix exponential to solve the system X'=AX where...
Use the matrix exponential to solve the system X'=AX where... 4 -3A= ( ) 3 4
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04/25/20

What is the ratio of times taken to fill the two drums
Suppose a hose pipe supplies water at a fixed rate. There are two oil drums each in the shape of a circular cylinder. The larger drum is twice the height and the base has twice the diameter... more
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04/24/20

What is the ratio of the number of permutations of 14 items taken six at a time to the number of combinations of 14 items taken six at a time?
What is the ratio of the number of permutations of 14 items taken six at a time to the number of combinations of 14 items taken six at a time?
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04/24/20

Math help asap!!!!
If using the method of completing the square to solve the quadratic equation x^2+13x+15=0, which number would have to be added to "complete the square"?
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04/13/20

calculus for small changes
When a cubical block of metal is heated, each edge increases by 0.1% per degree increase in temperature. Use differentials to estimate the percentage increase in the surface area and volume of the... more
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04/12/20

Joe has $350 in the bank right now and saves $25 per month. Leah has $150 in the bank right now, but she is able to save $35 per month. How long will it take them to have the same amount of money?
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03/23/20

A triangular plot of land is measured out to be exactly 1 acre, or 4,840 square yards. Two sides of the property each measure 150 yards. What is the length of the third side of the property?
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02/28/20

Ratio Word Problem
A rope is cut in two in the ratio 3.5: 1.75. The difference between the lengths of the ropes is 94.5 inches. What was the original length of the rope?
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02/25/20

how do you get the answer for (2+3i)/(4+2i)
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02/18/20

Help with Volume
Find the approximate volume in cubic units of the solid created when the region under the curve y = sin(x) on the interval [0, π] is rotated around the x-axisOptions: 4.93 1.57 6.28 2.00
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02/15/20

lower order differential equation
how to solve the differention equation 4d4-8d3-7d2+11d+6please tell me that how i will obtain the complete solution ofthis differention equation
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