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Flauer [41]
3 years ago
5

A car is traveling at an average speed of 80km/h.What is it's speed in meters per second (m/s)​

Mathematics
1 answer:
jekas [21]3 years ago
4 0

Answer:

22.21 m/s

Step-by-step explanation:

1 hour = 80km

1 minute = 80000 ÷ 60 = 1.333km

1 second = 1.333 ÷ 60 = 22.21

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What exponential function is the best fit for the data in the table?
gogolik [260]
Answer: fourth option

\frac{1}{4} 4^{x-1}-4

Explanation:

1) the pair x = 3 f(x) = 0, leads you to probe this:

f(3) = 0 = A [4 ^ (3 - 1) ] + C = 0

=> A [4^2] = - C

A[16] = - C

if A = 1/4

16 / 4 = 4 => C = - 4

That leads you to the function f(x) = [1/4] 4 ^( x - 1) - 4

2) Now you verify the images for that function for all the x-values of the table:

x = 2 => f(2) + [1/4] 4 ^ (2 - 1) - 4 = [1/4] 4 - 4 = 4 / 4 - 4 = 1 - 4 = - 3 => check

x = 3 => f(3) = [1/4] 4^ (3 - 1) - 4 = [1/4] 4^2 - 4 = 16 / 4 - 4 = 4 - 4 = 0 => check

x = 4 -> f(4) = [1/4] 4^ (4-1) - 4 = [1/4] 4^(3) - 4 = (4^3) / 4 - 4 = 4^2 - 4 = 16 - 4 = 12 => check.

Therefore, you have proved that the answer is the fourth option.
6 0
3 years ago
Read 2 more answers
A 4-inch long ribbon is cut into pieces. If the length of each piece is 12of an inch, how many pieces are cut?
vekshin1

Answer:

48 pieces are cut.

Step-by-step explanation:

1/12 of an inch means that one inch would be 12 pieces. Since there are 4 pieces it would be 12x4= 48 pieces.

5 0
3 years ago
Fiona is 7 years older than Gavin. Alex is 12 years younger than Gavin. If the total of their ages is 73, how old is the younges
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Answer:

Think that it’s Alex

7 0
3 years ago
Help on precal, what are the answers?
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1) cscΘ = - 2

=>

        1
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=> sinΘ = - 0.5 => Θ is in the third and fourth quadrant

=> Θ = 180° + 30° = 210°

and Θ = 360° + 30° = 330°

2) tan Θ = √3

=> Θ = 60° and Θ = 180° + 60° = 240°
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3 years ago
Hattie could run 22 miles in 5 hours how many miles could she run i 6 hours
timofeeve [1]

Answer:

26.4

Step-by-step explanation:

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3 years ago
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