04/26/16

Catherine rows a boat downstream for 182 miles. The return trip upstream took 12 hours longer. If the current flows at 3 mph, how fast does Catherine row in sti
Catherine rows a boat downstream for 182 miles. The return trip upstream took 12 hours longer. If the current flows at 3 mph, how fast does Catherine row in still water?
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04/26/16

Kylie went on a 138 mile trip to a soccer game. On the way back, due to road construction she had to drive 23 miles per hour slower. This made the trip take 1 h
Kylie went on a 138 mile trip to a soccer game. On the way back, due to road construction she had to drive 23 miles per hour slower. This made the trip take 1 hour longer. How fast did she drive to... more
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04/26/16

A 1.2 kg toy car moving toward the east at 6.8 m/s collides with...
A 1.2 kg toy car moving toward the east at 6.8 m/s collides with a 3.6 kg toy truck moving toward the north at 4.2 m/s. If they lock together, how many degrees east of north do they head after the... more
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04/26/16

zero equals negative nine subtracted by 3
jfsei9huergqfygdyewgduxjisoanbstdrefgeihIT78DWQTGkyuahr
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04/26/16

150gm mass is pushed down from a height of 120cm to the ground with a constant applied force
Determin the force if the work done is 75J due to applied force.   Find the total work done on the box by the applied force and the gravity   Find the Final speed of the mass when it hits the... more
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04/24/16

Write a polynomial
Write a polynomial to represent the area of the square. a=s 7x+2
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04/22/16

Which answer is it? heeeelp?
When 1 kg of a substance changes from solid to liquid at its melting point, it must absorb an amount of heat equal to which of the following?A. Latent heat of vaporizationB. Specific heat of phase... more
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04/21/16

force and motion
Consider two displacements, one of magnitude 3 m and another of magnitude 4 m. What angle between the directions of this two displacements give a resultant displacement of magnitude (a) 7 m, (b) 1... more
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04/21/16

at a bake sale a student spent $5.70 buying 3 brownies and 5 cookies. His friend spent $4.50 buying 1 brownie and 6 cookies. What is the pricfe of a brownie?
I dont really understand this kind of problems can you all help me?
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04/19/16

Why is this statement false? The arrangement of the orbitals is the same in a multielectron atom and a single-electron atom.
Why is this statement false?   The arrangement of the orbitals is the same in a multielectron atom and a single-electron atom.   The website's answer: The arrangement of the orbitals in a... more
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04/18/16

How many apples were picked?
Mark, Juan, David and Hua spent the afternoon picking apples, which they put into a large box. They were so tired from their labors that they went to sleep early that evening. During the night,... more
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04/18/16

Differentiation
Differentiate    [x4 - 3 loge(x)][7ex +6x]
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04/17/16

What is the distance between your hand and the surface water? What is the speed of sound in this case?
While stationary on a boat you are measuring the time it takes for the coin to leave your hand and hit the water. In order to measure that time you are turned to the sound of the coin hitting the... more
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04/17/16

what's the correct answer and why? please help!
The latent heat of vaporization of a substance is the amount of energy associated with doing which of the following to 1 kg of the substance? A. Melting it at its melting point B. Raising its... more
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04/16/16

Find all real and imaginary solutions to the polynomial equations by factoring or using the quadratic formula
X^3 - 12=113
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04/14/16

simplify the equation
6 over x^2-9x+20 minus 3 over 4-x = 2 over x -5
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04/14/16

Temperature varies - Calculus
The temperature of a hard boiled egg varies according to Newton's Law of Cooling: dT/dt= -k(T-A), where T is the temperature of the egg, A is the room temperature, and k is a positive constant. If... more
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04/14/16

If a force of 50 pounds is directed 30° from the horizontal, what vector represents this force?
If a force of 50 pounds is directed 30° from the horizontal, what vector represents this force?
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04/13/16

a 52 v battery powers a pair of 36 ohm resistors connected in parallel. what is the current flowing through the system?
round to the nearest 10th
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04/12/16

Log2(4)+log2(x+3)= log2(8)
Math help
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04/12/16

Polynomials
Simplify the each expression (5h^4-7h^2-9)+(2h^4+4-3h) 
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04/11/16

A fireworks shell is shot straight up with the initial velocity of 152 feet per second.
A fireworks shell is shot straight up with the initial velocity of 152 feet per second. It's height s feet and t seconds is given by the equation s(t)=152t-16t^2. If the shell is designed when it... more
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04/11/16

Write an equation for the height of the penny at the time after it was dropped.
A penny was dropped from the window of a building, 64 feet above the ground. Write an equation for the height of the penny, h, at the time t seconds after it was dropped.
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04/06/16

Find possible formula for quadratic function with vertex (-6,2) and y intercept =-4
Find formula for a quadratic function
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04/06/16

A rectangle is drawn so that the width is 2 feet shorter than the length. The area of the rectangle is 35 square feet. Find the length of the rectangle.
A rectangle is drawn so that the width is 2 feet shorter than the length. The area of the rectangle is 35 square feet. Find the length of the rectangle.
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