10/02/17

Explain the equation
3x+y=4 2x-4y=7
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10/02/17

related rates
(a) if A is the area of the circle with radius r and the circle expands as time passes, find dA/dt in terms of dr/dt. its our first day of doing related rates so I'm kinda lost but i got.... more
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10/02/17

a feriss wheel turnig at a constent spped of 5/ms is not accelrating true or false
science true are false  
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10/02/17

Julie is given two points, (x,y) and (w,z). Which process can she use to find the distance between the points
 (x,y)  
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10/02/17

when a gannet flies at a constant height above the sea, there is a downward force of 30N on the gannet. what is the size of the upward force on the gannet?
tick the correct letter   A) less than 30N B) exactly 30N C) more tha 30N D) need more info
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10/02/17

sound waves travel the slowest through which of the following ?
hbds chjds ahdbksabdkasbdus adsaidb.. asjdbikajs
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10/01/17

Physics kinematics problem help?
1. A physics student, exhausted after hours of study, plays a game to relieve her stress. She tries to slide an ice cube across the surface of her desk such that, when the cube slides off of the... more
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10/01/17

Help on Physics kinematic problems please?
1. Car 1 moves eastward with a constant speed of 20 m/s. Car 2, at rest on the side of the road, accelerates at 2 m/s squared to the east at precisely the instant Car 1 is beside it. How long does... more
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10/01/17

How do you find a perimeter of a square?
If one side is 5x-8 and the other one 3x
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10/01/17

newtons law of gravitation says that the magnitude F of the force exerted by a body of mass m on a body of mass M is: F=(GmM)/r^2 where G is the gravita
newtons law of gravitation says that the magnitude F of the force exerted by a body of mass m on a body of mass M is:         F=(GmM)/r^2 where G is the gravitational constant and r is the... more
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10/01/17

how do you change a statement into an absolute value equation?
 I was wondering how you change a statement like, "any number that is 6 units away from 0" into an absolute value equation or inequality
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10/01/17

Calculate the velocity of the satellite
A satellite orbits in circular motion at an altitude of 5000 kilometers above the surface of the Earth. Calculate the orbital (tangential) velocity of the satellite.mEarth = 5.972 x 1024 kg rEarth... more
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10/01/17

Calculate the radius
A black hole is an extremely dense material that can be created when an object with a large mass is condensed into a sphere with a Schwarzschild radius determined by the equation below. Calculate... more
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10/01/17

The acceleration due to gravity
One method of creating artificial gravity in space is to make a circular space station that spins and creates a centripetal force that points towards the center of the space station to simulate the... more
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10/01/17

Acceleration due to gravity
Calculate the acceleration due to gravity on the surface of the objects described below: a. The Moon: mmoon = 7.348 x 1022 kg , rmoon = 1.736 x 106 mb. The Sun: msun = 1.989 x 1030 kg , rsun =... more
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10/01/17

word problem
A student designs a container as part of an egg drop. She believes the egg can withstand a fall as long as the speed doesn't exceed 80ft/s. She uses equation v=square root of ((V0)2+2ad) to model... more
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10/01/17

Find the fifth roots of the complex number:
Find the fifth roots of the complex number:cos(5pi/4)+isin(5pi/4)
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10/01/17

Determine whether the vectors a and b are​ parallel, orthogonal, or neither:
Determine whether the vectors a and b are parallel, orthogonal, or neither: a=〈3,5〉 and b=〈-10,-6〉
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10/01/17

how does Herodotus depict the Persian Emperor Xerxes
explain in detail
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10/01/17

(x − 5)(x − 4) = 0 Solve the equation
I'm stuck, can someone help please?
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10/01/17

If x is a positive integer then the solution set of 4x+2<14 is
a 1 b 1,2 c 1,2,3 d 1,2,3,4
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10/01/17

The polynomial of degree 3, P(x), has a root of multiplicity 2 at x = 2 and a root of multiplicity 1 at x = - 5 . The y-intercept is y = - 10
create a polynomial equation solving for p(x)
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10/01/17

Word problem
Baby Face Nelson, a famous bank robber stole an armored truck with a huge shipment of $1 bills. The bills were in large bags and not grouped together in regular quantities. Baby Face thought it... more
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10/01/17

why entropy can not be negative ?
 why the entropy of a universe can not be negative?  
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09/30/17

Can anyone help me with this math problem?!
the number of workers per Social Security beneficiary has been declining approximately linearly since 1970. in 1970 there were 3.7 workers per beneficiary. in 2050 it is projected there will be 2.0... more
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