Safety research. Under ideal conditions, if a person driving a vehicle slams on the brakes and skids to a stop, the speed of the vehicle v ( x ) (in miles per hour) is given approximately by v ( x ) = C x , where x is the length of skid marks (in feet) and C is a constant that depends on the road conditions and the weight of the vehicle. For a particular vehicle, v ( x ) = 7.08 x and 4 ≤ x ≤ 144. (A) Describe how the graph of function v can be obtained from the graph of one of the basic functions in Figure 1, page 18. (B) Sketch a graph of function v using part (A) as an aid.
Safety research. Under ideal conditions, if a person driving a vehicle slams on the brakes and skids to a stop, the speed of the vehicle v ( x ) (in miles per hour) is given approximately by v ( x ) = C x , where x is the length of skid marks (in feet) and C is a constant that depends on the road conditions and the weight of the vehicle. For a particular vehicle, v ( x ) = 7.08 x and 4 ≤ x ≤ 144. (A) Describe how the graph of function v can be obtained from the graph of one of the basic functions in Figure 1, page 18. (B) Sketch a graph of function v using part (A) as an aid.
Solution Summary: The author explains how to obtain the graph of the function v(x)=7.08sqrtx from the basic function given in Figure 1.
Safety research. Under ideal conditions, if a person driving a vehicle slams on the brakes and skids to a stop, the speed of the vehicle v(x) (in miles per hour) is given approximately by
v
(
x
)
=
C
x
, where x is the length of skid marks (in feet) and C is a constant that depends on the road conditions and the weight of the vehicle. For a particular vehicle,
v
(
x
)
=
7.08
x
and 4 ≤ x ≤ 144.
(A) Describe how the graph of function v can be obtained from the graph of one of the basic functions in Figure 1, page 18.
(B) Sketch a graph of function v using part (A) as an aid.
In ΔEFG, e = 520 inches, ∠E=26° and ∠F=107°. Find the area of ΔEFG, to the nearest 10th of an square inch.
In ΔXYZ, ∠Y=90° and ∠X=25°. ∠ZWY=73° and XW=7.2. Find the length of WY to the nearest 100th. Figure not necessarily drawn to scale.
XYWZ25°73°7.2?
In ΔABC, a = 380 inches, ∠A=72° and ∠B=9°. Find the area of ΔABC, to the nearest 10th of an square inch.
Chapter 1 Solutions
MyLab Math with Pearson eText - Stand Alone Access Card - for Calculus for Business, Economics, Life Sciences & Social Sciences, Brief Version (14th Edition)
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