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katrin2010 [14]
3 years ago
5

Sandy is observing the velocity of a runner at different times. After one hour, the velocity of the runner is 4 km/h. After two

hours, the velocity of the runner is 2 km/h.
Part A: Write an equation in two variables in the standard form that can be used to describe the velocity of the runner at different times. Show your work and define the variables used. (5 points)

Part B: How can you graph the equations obtained in Part A for the first 4 hours? (5 points)
Mathematics
1 answer:
kherson [118]3 years ago
5 0
V=u+at
4=u+1a
2=u+2a
subtract
2=-a
a=-2
4=u-2
u=6
v=6-2t
or y=6-2x
or y=-2x+6
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x = 57°

Step-by-step explanation:

The angle not 76° or x° is 180-133 which is 47°. A triangles angles always sum up to 180° so:

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123°+x°=180°

x°=57°

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saul85 [17]

Answer:

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Emily works at a concession booth for summer sports. Hotdogs are $1.50 and sodas are $0.50. At the end of the night she made a t
pav-90 [236]

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Step-by-step explanation

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