A severe storm has moved into your area and the weather sirens have begun to go off. The frequency of the sirens ranges between 200 HZ and 2,000 Hz. What is the range of wavelength emitted sounds? (the velocity of sound in air is 340 m/s)
017 to
0.59 to 5.9 m
0.59 to 1.7 m
0.17 to 5.9 m

10cm

step-by-step explanation:

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(0,-3) see attached graph

step-by-step explanation:

a. to solve the system, graph the two equations.

x = y+3 becomes y=x-3 has m=1/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move up 1 unit and 1 unit to the right. plot a point and connect.

y=-4x+3 has m =-4/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move down four units and to the right 1 unit. plot a point and connect.

the solution is the point (x,y) where the two lines intersect. by the graph below it is (0,-3).

b. to solve by substitution, substitute y = -4x-3 into x= y+3

x= (-4x-3) +3

x=-4x

5x=0

x=0

now substitute x = 0 back in to find y.

y= -4(0)-3

y=0-3

y=-3

solution is (0,-3)

c. use elimination by adding the equations together.

x-y=3

4x+y=-3

5x=0

x=0

then substitute into one equation to find y.

y=-4(0)-3

y=-3

6 cars because if you have 8 and subtract 2 youll have 6 left over