Math Homework

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Xony wants to undertake a journey of 720 km by car. She
Xony wants to undertake a journey of 720 km by car. She wants to know how much money she will need for petrol. She knows that petrol consumption depends on the speed he drives. At a speed of 120 km/h … read more
Tom Piscaer
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A): A motorcar of mass 1700 Kg accelerates from 150 km/hr to
A): A motorcar of mass 1700 Kg accelerates from 150 km/hr to 240 km/hr in 2.5 seconds. * Find the average acceleration and the force needed to create this acceleration… read more
Tutoring InAnInstant
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2. NASA's Langley Research Centre has been experimenting with
2. NASA's Langley Research Centre has been experimenting with the use of air bags to soften the landings of crew exploration vehicles (CEV) on land. What stopping time will be required in order to saf… read more
Ryan
Bachelor's Degree
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A submarine left hawaii two hours before an aircraft carrier.
A submarine left hawaii two hours before an aircraft carrier. The vessels traveled in opposite directions. The aircraft carrier traveled at 25 mph for nine hours. After this time, the vessels were 280… read more
Chirag
Master's Degree
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1.A black racer snake travels 36.8 km in 16hours. What is the
1.A black racer snake travels 36.8 km in 16hours. What is the speed in km/h (round to the nearest tenth)? 2.There are approximately 2Ibs of muscle for every 7 pounds of body weight of a certain animal… read more
ck_mba
Computer Engineer
Master's Degree
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What is the circumference of a circle with radius 4.3m An
What is the circumference of a circle with radius 4.3m? An object travels in a circle of radius 4.3m at constant speed. It takes 1.4 seconds to go around once. How fast is the object moving? What is t… read more
Martin
Master's Degree
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The local health board operates a fleet of cars. Based on past
The local health board operates a fleet of cars. Based on past information, for the cars used, the distance traveled by a car in a day averages 170 km with a standard deviation of 40 km. Assuming a no… read more
Stevewh
Teacher
Bachelor's Degree
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Q1 -Sixty savings account holders of a building society are
Q1 -Sixty savings account holders of a building society are randomly selected. They are sorted by order of account balance, with the 20 smallest categorized as Low and the largest 20 being categorized… read more
dhouse1940
Retired
Master's Degree
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X and Y travel toward each other from 350 km apart. X is traveling
X and Y travel toward each other from 350 km apart. X is traveling at 90 km/h and Y is traveling at 110 km/h. When will they meet, assuming they left at the same time?… read more
Scott
Master's Degree
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4) Solve the following equation for x. x – 4/x + 5 = x –
4) Solve the following equation for x. x – 4/x + 5 = x – 2/x + 1 5) Solve the following equation for the variable. 7/x – 1 + 6/x +1 = 2x/x^2 – 1 the solution is x __. 8) Jack usually mows the yard in … read more
Chirag
Master's Degree
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Steve I have more math problems for you can you help. 4) Solve
Steve I have more math problems for you can you help. 4) Solve the following equation for x. x +3/x + 6 = x -1/ x + 5. 5) Solve the following equation for the variable x. 1/ x – 4 + 7/ x + 4 = 7x/ x^2… read more
Stevewh
Teacher
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(a) 28 bars of chocolate cost 6.72. What would be the cost
(a) 28 bars of chocolate cost £6.72. What would be the cost of 35 similar bars? (b) If 20 boxes weigh 36Kg, what is the weight of 45 similar boxes? (c) If a car travels 100 miles on fuel costing £9.60… read more
Dr. Dan
Doctoral Degree
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I need help with the following math questions. These three
I need help with the following math questions. These three have me stumped 1) Use the exponential rule to simplify the expression. Assume the variables represent nonzero real numbers. Evaluate the num… read more
Chirag
Master's Degree
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1. A projectile is launched from the side of a cliff. After
1. A projectile is launched from the side of a cliff. After 2.02 seconds, the magnitude of the final velocity vector is 33.7 m/s angled at 34 degrees below the horizontal. What is the vertical displac… read more
R.R. Jha
Bachelor's Degree
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A car travels at a constant speed of 90.0 km/h around a circular
A car travels at a constant speed of 90.0 km/h around a circular track with a diameter of 1.00 km. What is the magnitude of the car's centripetal acceleration, and what supplies this?… read more
Expert
A car travels at a constant speed of 90.0 km/h around a circular
A car travels at a constant speed of 90.0 km/h around a circular track with a diameter of 1.00 km. What is the magnitude of the car's centripetal acceleration, and what supplies this?… read more
Expert
1. solve 3/2+1/3 1/x 2. solve 5/7z+7/z 1 3. solve 2/x+1 4/x
1. solve 3/2+1/3=1/x 2. solve 5/7z+7/z=1 3. solve 2/x+1=4/x 4. solve for x x+3/x+2=x+2/x+6 5. solve for x 1/x-4 + 4/x+4 = 6x/x^2-16 7. (3a-2) = a+25/a+1 11. a black racer snake travels 4.6km in 2 hour… read more
abozer
Bachelor's Degree
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1. An asteroid revolves around the sun with a mean ...
1. An asteroid revolves around the sun with a mean (average) orbital radius twice that of Earth's. Predict the period of the asteroid in Earth years. ____ yr &n bsp; 2. Tom has a mass of 75.0 kg and S… read more
Scott
Master's Degree
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