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Karo-lina-s [1.5K]

3 years ago

13

Which of the following is a number set that contains the number –5? A. integers B. whole numbers C. natural numbers D. irrationa

l numbers

1 answer:

meriva3 years ago

6 0

It would be A or B, as an integer can be anything and it’s a while number.

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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

Please help need the answer now!!

Korvikt [17]

Answer:

D

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

If you were to use the “Completing the Square” method to solve the equation below for k, what number would you add to both sides

Makovka662 [10]

Answer:

The number you would add to both sides of the equation to use the "Completing the Square" method would be 16.

Step-by-step explanation:

To find the number to add to both sides of an equation to complete the square, divide the first-degree term's coefficient by 2 and square your remainder. In this case, the coefficient of the first-degree term is -8. After dividing by 2 and squaring it, you'll get 16, so that is the number you must add to both sides of the equation in order to complete the square.

5 0

2 years ago

Read 2 more answers

See the question attached. Please help

Lelu [443]

Answer:

1) 36

2) 190

3) 72 units

Step-by-step explanation:

1) 2x4 = 8 units area for rectangle

(4-2) x4 /2 = 4 units

6 x 4 = 24 units

8 + 4 + 24 = 36

2) 3 x 10 / 2 = 15 units

5 x 10 /2 = 25 units

15 x 10 = 150 units

150 + 25 + 15 = 190 units

3) 6 x 3 / 2 = 9 units

6 x 9 = 54 units

6 x 3 / 2 = 9 units

9 + 9 + 54 = 18 + 54 = 72 units

3 0

2 years ago

Read 2 more answers

Alisa says it is easier to compare the numbers in set A 45,760-1,025,680 than set B492,111-409,867

Marysya12 [62]

What is the question?

3 0

3 years ago