03/29/18

Contributions accounted for two fifths of the money received. If $950 was received in all, how much money was contributed?
i dont understand how to slove it ):
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03/28/18

if 4 hot dogs cost 3 dollars, how much does hot dog cost?
Try to find the answer to this question!  
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03/28/18

The area of a square is (x2 + 24x + 144) in2. What is the measure of the side lenghts?
I struggle at geometry
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03/28/18

how do i find the area of a rectangle with sides of (2x+3) and 3 ?
 I have to do this for homework
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03/28/18

Which is an equation in point slope form for the given point and slope? Point (8-4) Slope (-5/6)
I need help on this problem can’t find the answer anywhere 
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03/28/18

A explosion of an object at rest. Momentum problem
A 100 kg mass is blown apart into a 60 kg piece and a 40 kg piece (you can assume the initial velocity to be zero). After the blast, the two masses are moving apart with a relative velocity (vbf –... more
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03/28/18

What is the length (in cm) of a pendulum that has a period of 0.861 s?
What is the length (in cm) of a pendulum that has a period of 0.861 s?
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03/28/18

How Do I Answer this Trig Question
Write -4sin(7t) + 9cos(7t) in the form of Asin(Bt+ϕ) using sum or difference formulas I got sqrt(97)sin(7(t)-1.15257) but there homework software is telling me that: The angle phi should be in the... more
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03/28/18

q equals 197 plus the product of c and 137
Write the sentence as an Equation
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03/28/18

How long does it take a child on a swing to complete one....
How long does it take a child on a swing to complete one swing if her center of gravity is 4.81m below the pivot? 
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03/28/18

Find the frequency of a tuning fork that takes...
Find the frequency of a tuning fork that take 1.70 x 10-3 s to complete one oscillation. 
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03/28/18

How many electrons fit in one dust particle
The mass of a dust particle is approximately 7.5x10^-10 kg and the mass of an electron is 9.1x10^-31 kg. Approximately how many electrons have the same mass as one dust particle?
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03/28/18

what is the 5th planet from the sun
I need to know the 5th planet from the sun for my class. 
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03/28/18

PreCalculus Questions
Given u = -10i + 6j and v = -8i + -j, find the angle between u and v.
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03/28/18

A three branch parallel circuit carries a total current of 1.2mA if I 1 =0.2MA AND I 2=0.7 ma, then what is the value of i 3
Is it 2.4 ma    7.2 ma  0.3 ma 8.7mA
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03/28/18

Math Question
To prepare for the weightlessness of space, astronauts train using steep dives on an aircraft. In one dive, the aircraft can descend at 154 m/s for 19s. How far does the aircraft descend?
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03/28/18

what is three times a number decreased by 11?
hi guys this question is based on maths wordproblem
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03/28/18

Which term is used to describe the growing influence of British music and British culture in the United States during the 1960s?
a. Beatlemania b. counterculture c. bohemianism d. British invasion
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03/27/18

Does a battery convert chemical energy to electrical energy
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03/27/18

PLEASE READ DESCRIPTION!!!
An object is projected into the air and reaches the maximum height of 800 feet. At this point it begins to drop straight down. Using the formula H=16t^2 + 800, where h is the height and t is the... more
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03/27/18

Physics Math
An athlete with a mass of 64.0 kg is in a cross country race, and at one instant he has a speed of 4.50 m/s.   A.) What is his kinetic energy at this instant?   B.) If he wishes to double his... more
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03/27/18

Physics Math
How fast (in m/s) must a 2.7-g ping-pong ball move in order to have the same kinetic energy as a 145 g baseball moving at 35.0 m/s?
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03/27/18

physics help need help
a.Find the electric field at a point midway between two charges of +43.9 ✕ 10-9 C and +68.2 ✕ 10-9 C separated by a distance of 41.4 cm. N/C in a direction towards the +43.9 ✕ 10-9 C charge
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03/27/18

A car is traveling north at 15m/s. Ten minutes later it is traveling at 70m/s. What is the car's initial velocity? What is it’s acceleration
It is about velocity and acceleration   
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03/27/18

X=-3 and y=-x+2 so what is y
I would like to know the value of y and x is -3 but y is -x+.
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