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Tutors Answer Your Questions about Length-and-distance (FREE)
Question 928287: I need help finding the distance for this problem.
Find the distance between parallel lines whose equations are y = -x + 2 and y = -x + 8.
The answer choices are:
A) 3 √ 2
B) 2 √ 17
C) 10
D) 2 √ 29
(the √ is a square root bracket)
Thanks for your help in advance!
Click here to see answer by stanbon(75887) |
Question 930695: A lifeguard sitting on a beach at point A sees a swimmer in distress at point B.
The lifeguard can run at a rate of 3 meters per second and can swim at a rate
of 1.5 meters per second. To minimize the amount of time it takes to reach the
swimmer, how far along the beach should the lifeguard run before entering the
water?
Click here to see answer by amariya(8) |
Question 933827: An eastbound train leaves Vancouver for Toronto, a distance of about 4370 km, travelling at about 90km/h. At the same time a west bound train leaves Toronto to Vancouver travelling at about 70 km/h. How far from Toronto are the trains when they pass each other? For how long have they been travelling when this happens?
How much pure water bust be mixed with 9 pints of 50% developer to produce a mixture that is 28% developer?
Click here to see answer by lwsshak3(11628) |
Question 935069: One observer at point A estimates the angle of elevation to the basket of a hot air balloon to be 55°, while another observer 100 yards away at point B estimates the angle of elevation to be 36°. How high off the ground is the basket of the hot air balloon? Round to the nearest whole number.
Click here to see answer by TimothyLamb(4379)  |
Question 935399: The model distance = 3.30+0.235*(speed) can be used to predict the stopping distance (in feet) for a car traveling at a specific speed (in mph). According to this model, about how much distance will a car going 65 mph need to stop?
A) 27.0 feet
B)4.3 feet
C) 729.0 feet
D)18.6 feet
E)345.0 feet
Click here to see answer by TimothyLamb(4379)  |
Question 937463: One observer estimates the angle of elevation to the basket of a hot air balloon to be 55°, while another observer 100 yards away estimates the angle of elevation to be 36°. How high off the ground is the basket of the hot air balloon? Round to the nearest whole number.
Click here to see answer by mananth(16946)  |
Question 937597: A plane takes off from a runway and climbs at at angle of elevation of 15 degrees.
a. After the plane has traveled one mile (5280 feet) how far has the plane traveled horizontally? Round answer to nearest foot.
b.After the plane has traveled one mile (5280 feet) how far has the plane traveled vertically? Round your answer to the nearest foot.
Click here to see answer by TimothyLamb(4379)  |
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