01/16/17

help please! physics question
A turntable is spun at 75 RPMs. Calculate the time for each rotation (i.e. calculate the period). Give your answer ...in terms of seconds. Do not include units in your answer. They will be assumed... more
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01/15/17

how much do i pay quarterly if i used 1428 units at $8.49 and standing charge of $36.40
Electricity bill
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01/15/17

Trigo word problem
A meteorologist of a weather bureau sights a cloud base. To measure its height, he positions the projector at a distance of 368m from the detector. The angle of elevation of the cloud base from the... more
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01/14/17

Is this table linear or nonlinear?
This is the actual table,    x           y-3         10-1          21           23           10   Now my teacher has told me this is a linear function because there are no repeating numbers in... more
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01/14/17

word problem help
A trained me to trip of 600 miles between two cities. If it had averaged 10 mph more it would've required two hours less to make the trip. Find the rate of speed of the train
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01/14/17

calculate combination of sine waves
calculate sine waves
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01/13/17

If an astronaut weighed 175 pounds on Earth, he would have weighed only 29 pounds on the moon. If his mass was 80 kg on Earth, what would his mass have been on
Full Question: If an astronaut weighed 175 pounds on Earth, he would have weighed only 29 pounds on the moon. If his mass was 80 kg on Earth, what would his mass have been on the moon?   Topic:... more
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01/13/17

Inverse of x^3-4/x
Inverse of x^3-4/x
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01/12/17

Sally has $21.40 in dimes and quarters, for a total of 100 coins. How many of each kind of coin does sally have?
I have a quiz tomorrow and I need to do well
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01/11/17

In the equation y = 12x, y represents students and x represents teachers. If there are 6 teachers, how many students are going on the field trip?
PLEASE HELLLPPPP
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01/11/17

algebra help pls
You pay $24.50 for 10 gallons of gas and 1 quart of oil at a gas station. Your friend pays $22 for 8 gallons of the same gasoline and 2 quarts of the same oil. The first question asks to model the... more
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01/11/17

If a car drove 150 miles in 2.5 hours. What is the unit rate?
I have trouble learning unit rate in class, and I really don't know this.
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01/11/17

How much paint do i have left?
I bought 2 1/2 gallons  of paint but i only used 2/4 gallons of paint.    
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01/11/17

writing functions
The height (feet) above the ground of a golf ball depends on the time, t (in seconds)it has been in the air. Ed hits a shot off the tee that has a height modeled ny the function f(t)=-16t^2 + 80t.... more
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01/09/17

Chris IS paid a 4% rate of commission on all sales over $600.00. how much commission does she get on $5,200.00 worth of sales?
I need help solving this math problem. 
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01/08/17

If the refractive index of water is 4/3 and th fish is 12cm below the surface of water, find the radius of the circle.
A fish looking up through the water sees that the outside world is contained in a circular horizon. If the refractive index of water is 4/3 and th fish is 12cm below the surface of water, find the... more
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01/07/17

. Assume ideal conditions for the apparatus illustrated below. What is the acceleration of the system if (a) m1 = 0.25 kg, m2 = 0.50 kg, and m3 = 0.25 kg, and (
i want that someone explain me this  
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01/07/17

What is the answer to 4!3!
whats the answer to 3!4!. evaluate it 
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01/06/17

Find the length of the hypotenuse
In a 60° - 30° right triangle, the length of the side opposite the 30° angle is 96.5 meters. Find the length of the hypotenuse 
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01/06/17

Find the length of the angle
In a 58° - 32° right triangle, the side adjacent to the 32° angle is 41.74 inches. If tan58° = 1.6003, find the length of the side opposite the 32° angle. Estimate your answer to 3 decimal places.
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01/06/17

Transformers
summarize Faraday’s experiment. What did he observe?a) When the switch is first closed?b) When the switch remains closed?c) When the switch is opened?d) When the switch remains open?   I'm trying... more
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01/05/17

A 60 kg astronaut stands on a bathroom scale in a 2 km diameter rotating space station that spins every 62.8 sec. What does the scale read?
A astronaut stands on a bathroom scale in a 2 km diameterrotating space station that spins every 62.8 sec
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01/04/17

magnetic forces
A thin, 10-cm long solenoid has a total of 400 turns of wire and carries a current of 2.0 A.a) Calculate the field inside the solenoid, near the center using 𝐵= 𝜇𝑜𝑁l/𝐿.b) Calculate the field inside... more
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01/04/17

How could you use the position vs. time graph to figure out who walked faster
Becca and sam each walked a 100-meter course around the school track. Each of their wplots are plotted on a single position vs. time graph. If you didnt have a chance to watch them in person, how... more
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01/04/17

magnetic forces
An electron travels with a speed of 2.60 x 106 m/s in a magnetic field of 0.30 T. What is the magnitude of the force exerted on the electron?
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