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KATRIN_1 [288]
2 years ago
8

PLEASE HELP THERE IS A TIMER, I PROMISE A BRAINLIEST TO THE FASTEST CORRECT ANSWER!

Mathematics
2 answers:
Marta_Voda [28]2 years ago
4 0

Answer:

shortest distance: 1.25 × 10^7 km

<u>Explanation</u>:

using Pythagoras theorem:

a² + b² = c²

c² = (1.2 x    10^7)² + (3.5 x 10^6 )²

c² = 1.44 * 10^{14} + 1.225 * 10^{13}

c² = 1.5625 * 10^{14}

c = √12500000

c = 1.25 *  10^7 ______in standard form.

morpeh [17]2 years ago
3 0

Answer:

1.25 x 10⁷ km

Step-by-step explanation:

Distance QR = √(3.5 x 10⁶)² + (1.2 x 10⁷)²

= √12.25 x 10¹² + 1.44 x 10¹⁴

= √10¹² (12.25 + 144)

= 10⁶ x 12.5

= 1.25 x 10⁷ km

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Você é um comandante de uma espaçonave. Sua missão é chegar até Alfa Centauro em cinco anos. A distância do Sol até Alfa Centaur
Deffense [45]

Answer:

The spaceship will get to Alpha Centaur in time

Step-by-step explanation:

<u><em>The complete question in English is</em></u>

You're the commander of a spaceship. Your mission is to reach Alpha Centaur  in five years. The distance from the sun to Alpha Centaur is 2.5 x 10^13 miles. The distance  from Earth to Sun is approximately 9.3 x 10^7

miles. Your spaceship can travel  at the speed of light. You know that light can travel a distance of 5.88 x 10^12  miles in a year. Can you get to Alpha Centaur in time?

step 1

Find the time it takes for the spaceship to travel from Earth to the Sun

The distance from the Earth to Sun is equal to

9.3*10^7\ miles

The spaceship can travel  at the speed of light

The light can travel a distance of 5.88*10^{12}\ miles in a year

so

using a proportion

\frac{5.88*10^{12}\ miles}{1\ year}=\frac{9.3*10^7\ miles}{x}\\\\x=(9.3*10^7)/5.88*10^{12}\\\\x=1.58*10^{-5} \ years

This time is very small in years

Convert to minutes

1.58*10^{-5} \ years=1.58*10^{-5} (365)(24)(60)=8.3\ min

step 2

Find the time it takes for the spaceship to travel from the Sun to Alpha Centaur

The distance from the the Sun to Alpha Centaur is equal to

2.5*10^{13}\ miles

The spaceship can travel  at the speed of light

The light can travel a distance of 5.88*10^{12}\ miles in a year

so

using a proportion

\frac{5.88*10^{12}\ miles}{1\ year}=\frac{2.5*10^{13}\ miles}{x}\\\\x=(2.5*10^{13})/5.88*10^{12}\\\\x=4.25\ years

4.25\ years< 5\ years

therefore

The spaceship will get to Alpha Centaur in time

3 0
3 years ago
What is: 5x + x - 3 = 9
Allisa [31]

5x+x-3=9

6x-3=9

cancel out 3 3+3 9+3

6x=12 divide six by 6 and by 12 too.

x=12/6=2

x=2

8 0
3 years ago
Read 2 more answers
Y=5
Ymorist [56]
15. = slope would be 7 and y-int would be -4
16. = slope would be -2/5 and y-int would be 0
17. = doesn’t have a y variable

slope intercept form is y=mx+b with the m being the slope and the b being the y-int. in some cases where the equation is not in this form you have to change it so it is in that form by using opposite operations
5 0
3 years ago
Why doesn't the existence of a correlation always indicate a cause and effect relationship?
maxonik [38]
Because correlation and causation are 2 different links
4 0
3 years ago
Sin tita + sin ^2 tita = 0
AnnyKZ [126]

Answer:

tita = 0 , 180, 270, 360.   ( tita =  0   ≤ x ≤ 360).

Step-by-step explanation:

sin tita + sin ^2 tita = 0

sin tita( sin tita + 1) = 0

sin tita = 0, - 1.

For angles between 0 and 360 inclusive  sin = 0 gives 0, 180 and 360 degrees.  The angle whose sine is -1 is 270 degrees.

tita = 0 , 180, 270, 360.

3 0
3 years ago
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