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o-na [289]
3 years ago
15

Who much time would it take for a train accelerating at 21.5 m/s2 to go from

Mathematics
2 answers:
Nina [5.8K]3 years ago
8 0

Answer:

Step-by-step explanation:

v=u+at

38.9=13.2+21.5 t

21.5 t=38.9-13.2

21.5 t=25.7

t=25.7/21.5≈1.195 s

BaLLatris [955]3 years ago
5 0

Answer:

To find the time taken, we use the equation:

v

=Then to find the time taken, we use the equation:

v = u + at

where:

v is the final velocity of the train

u is the initial velocity of the train

a is the train's acceleration

t is the time taken

So, we get:

t = (v-u)/a

t = (38.9 - 13.2)/21.5

t = 25.7/21.5

t = 1.19 seconds

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- 8y + 9x = -5<br> 8y + 7x = -75
IRINA_888 [86]

Answer:

x = -5 , y = -5

Step-by-step explanation:

- 8y + 9x = -5

8y + 7x = -75

__________

0 + 16x = - 80

x = -80 / 16

x = -5

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-8y + 9(-5) = -5

-8y - 45 = -5

-8y = -5 + 45

-8y = 40

y = 40/-8

y = -5

hope it helps!

8 0
3 years ago
How can I write 2,351 and standard form
Ludmilka [50]
Isn't 2,351 the standardized form already?
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3 years ago
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Add up the subtended arcs that these chords cut to get

44+86 = 130

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What is the domain of the function y=3 in x graphed below?
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What is the domain of the function y=3 in x graphed below?

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The pencil is 10 cm long and the cup is 8 cm tall. Find the diameter of the base of the cup?
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