Answer: 13
Step-by-step explanation: In this problem we're asked to rewrite as addition and then evaluate.
It's important to understand that minus a negative means the same thing as plus a positive so we can change 5 - (-8) to 5 + (+8).
Now we can simply add to get a sum of 13.
Therefore, 5 - (-8) or 5 + (+8) = 13
Answer:
Jaden received: $45
Step-by-step explanation:
$63 : 7 = 9 => $9 * 5 = $45
Consider the attached ellipse. Let the sun be at the right focus. Then perihelion is at right vertex on the x-axis and aphelion is at the left vertex on the x-axis.
The distances:
- from perihelion to the sun in terms of ellipse is a-c;
- from aphelion to the sun in terms of ellipse is a+c.
Then
![\left\{\begin{array}{l}a-c=741,000,000\\a+c=817,000,000\end{array}\right.](https://tex.z-dn.net/?f=%5Cleft%5C%7B%5Cbegin%7Barray%7D%7Bl%7Da-c%3D741%2C000%2C000%5C%5Ca%2Bc%3D817%2C000%2C000%5Cend%7Barray%7D%5Cright.)
Add these two equations:
and subtract first equation from the second:
Note that
thus
![b=\sqrt{779,000,000^2-38,000,000^2}=\sqrt{605,397,000,000,000,000}.](https://tex.z-dn.net/?f=b%3D%5Csqrt%7B779%2C000%2C000%5E2-38%2C000%2C000%5E2%7D%3D%5Csqrt%7B605%2C397%2C000%2C000%2C000%2C000%7D.)
The equation for the planet's orbit is
![\dfrac{x^2}{a^2}+\dfrac{y^2}{b^2}=1\Rightarrow \dfrac{x^2}{606,841,000,000,000,000}+\dfrac{y^2}{605,397,000,000,000,000}=1.](https://tex.z-dn.net/?f=%5Cdfrac%7Bx%5E2%7D%7Ba%5E2%7D%2B%5Cdfrac%7By%5E2%7D%7Bb%5E2%7D%3D1%5CRightarrow%20%5Cdfrac%7Bx%5E2%7D%7B606%2C841%2C000%2C000%2C000%2C000%7D%2B%5Cdfrac%7By%5E2%7D%7B605%2C397%2C000%2C000%2C000%2C000%7D%3D1.)
Answer: 4x+8=12
Step-by-step explanation: there is the 1st one im going to try and o the second one oh im a 7th grader