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Salsk061 [2.6K]

3 years ago

12

Model 3 + (-4) on the number line

1 answer:

klemol [59]3 years ago

4 0

So all your doing is going 3 jumps to the positive side and 4 jumps to the negative side.

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A newly discovered planet orbits a distant star with the same mass as the Sun at an average distance of 128 million kilometers.

Jet001 [13]

The answer for this problem would be:

Orbital period if distance = 128,000,00 km and mass = Sun?

<span>This is approximately be .85 astronomical units if converted km to au.
</span>
We will be using Kepler's third law which is:

<span>T^2 = r^3 </span>

<span>T^2 = .85^3 </span>

<span>T^2 = .61
</span>
get the square root of .61
so the answer will be:

<span>T = .78 Years which is in months is 9.36 months.</span>

3 0

3 years ago

Solve each equation by completing the square. n^2 - 6n + 6 = -2

Law Incorporation [45]

<h3><u>Explanation</u></h3>

Separate the constant out of expression.

$( {n}^{2} - 6n) + 6 = - 2$

Find the constant that makes the expression able to be squared. You have to subtract the separated constant by new constant as well.

$( {n}^{2} - 6n + 9) + 6 - 9 = - 2 \\ {(n - 3)}^{2} - 3 = - 2 \\ {(n - 3)}^{2} = 1$

Square Root both sides to get rid the squared expression. Make sure to write plus or minus.

$\sqrt{ {(n - 3)}^{2} } = + \sqrt{1} \\ \sqrt{ {(n - 3)}^{2} } = - \sqrt{1} \\ n - 3 = 1 \\ n - 3 = - 1$

$n - 3 = 1 \: \: \: or \: \: \: n - 3 = - 1 \\ n = 1 + 3 \: \: \: or \: \: \: n = - 1 + 3 \\ n = 4 \: \: \: or \: \: \: n = 2$

<h3><u>Answer</u></h3>

$\large \boxed {n = 4,2}$

3 0

3 years ago

I need help please make sure this is correct

german

Answer:a

Step-by-step explanation:

3 0

4 years ago

Read 2 more answers

If one apple costs $2, how many apples is $12?

LiRa [457]

Answer:

6 apples because

Step-by-step explanation:

12÷2=6

4 0

3 years ago

Read 2 more answers

- 22 - 7v = - 3(8V + 4)<br> Round to the nearest hundreth

Dmitriy789 [7]

Answer:

v = 0.58

Step-by-step explanation:

-22 - 7v = -3(8v + 4)

Expand -3(8v + 4)

3 * 8v - 3 * 4

Simplify -3 * 8v -3 * 4

= -24v - 12

-22 - 7v = -24v - 12

Add 22 to both sides

-7v = -24v +10

Add 24v to both sides

17v = 10

$\frac{17v}{17} =\frac{10}{17}$

$v =\frac{10}{17}$

$v=0.58$

5 0

3 years ago