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GrogVix [38]
2 years ago
13

Solve the following also show you're workings

Mathematics
1 answer:
kow [346]2 years ago
7 0

I did my part! .... Best Wishes

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It is estimated that light takes 110,000 years to travel the full distance across our galaxy
stepladder [879]
\bf \stackrel{light~speed}{3.0\times 10^8}ms^{-1}\implies \stackrel{light~speed}{3.0\times 10^8}~\frac{m}{s}\implies 300,000,000~\frac{m}{s}\\\\
-------------------------------\\\\
\textit{how many seconds in a minute?}\qquad 60
\\\\\\
\textit{how many seconds in }\stackrel{1~hr}{60~minutes?}\qquad 60\cdot 60
\\\\\\
\textit{how many seconds in }\stackrel{1~day}{24~hrs}?\qquad 60\cdot 60\cdot 24
\\\\\\
\textit{how many seconds in }\stackrel{1~year}{365~days}?\qquad 60\cdot 60\cdot 24\cdot 365

now, it takes 1 second for light to travel 300,000,000 meters.

if we know it takes light 1 second to go 300 million meters, then in 365 days or a year, or 60*60*24*365 seconds, it will then travels

300,000,000 * 60 * 60 * 24 * 365 meters in 1 year,

how about in 110,000 years, how many meters has it travelled?

300,000,000 * 60 * 60 * 24 * 365 * 110,000   that many meters.

we know she travels the Milky Way in 110,000 years  or 60 * 60 * 24 * 365 * 110,000  seconds

and we know that 110,000 years is 3468960000000 seconds, so

if it travels 300000000 meters in only 1 second, in 3468960000000 seconds, it will travel then (300000000) * (3468960000000) meters

or  1040688000000000000000 meters.
4 0
3 years ago
Reggie, Alvin, and Jose are member of a relay running team. Reggie finished his leg of the race 2.45 seconds faster than Alvin a
lorasvet [3.4K]
From the given, we expressed the time that each of the team members ran in mathematical expression.
 
                Reggie = 57.12 seconds
                 Alvin = 57.12 + 2.45 seconds = 59.57 seconds
                 Jose = 57.12 - 3.81 seconds = 53.31 seconds
We then sum up all the time we calculate to determine the total time for the team. The answer is therefore 170 seconds. 
8 0
2 years ago
The domain of a relation is?
lara [203]

Answer:

sadly my grades suck hj

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
2(4 plus 2x) > 5x plus 5
blondinia [14]

Answer:

x ≤3

Step-by-step explanation:

2(4+ 2x)≥ 5x+ 5

distribute

8+4x ≥ 5x+ 5

Subtract 4x from each side

8+4x-4x≥ 5x-4x+ 5

8  ≥ x+ 5

Subtract 5 from each side

8-5 ≥ x+ 5-5

3 ≥ x

x ≤3

3 0
2 years ago
Read 2 more answers
Please someone help me with this question
const2013 [10]
Basically something like this

7 0
2 years ago
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