This ratio can be written as 8x+5x =390
Add the variables
13x = 390
Divide by 13 to get the value of x
390/13 = 30
Answer:
Quadrilateral is another word for a shape with four sides.
Step-by-step explanation:
Answer:
What’s the question
Step-by-step explanation:
Hey There!
First you would need to factor out the two.
-4x^3/2 = -2x^3
2x^2/2= x^2
12x/2= 6x
6/2= 3
Now we have.
-2x^3+x^2+6x+3 / x+1
We would then factor with polynomial division, and then we should have.
-2(2x^2 - 3x - 3)(x+1) / x+1
We would then cancel out the x+1
Therefore, the answer would be 
Hope this helped!
The correct answer is:
[C]: "
a = ±
" .
<span>
___________________________________________________________Explanation: _________________________________________________________We are given:
_________________________________________________________ </span>
→ "
25 = a² + b² " ; Solve for "
a" ;
_________________________________________________________ → To solve for "
a" ; we want to isolate "
a" on one side of the equation.
_________________________________________________________We can rewrite: "
25 = a² + b² " ;
as: " a² + b² = 25 " .
_________________________________________________________
Then, we can subtract "
b² " from each side of the equation; as follows:
_________________________________________________________
→ " a² + b² − b² = 25 − b² " ;
to get:
_________________________________________________________ → " a² = 25 − b² " ;
_________________________________________________________ → Now, take the square root of EACH SIDE of the equation ;
to isolate "
a" on one side of the equation; & to solve for the value(s) of "
a" ;
_________________________________________________________ → √(a²) =

;
to get:
_____________________________________________________ → a = |
| ;
→ a = ±
;
→ which is:
Answer choice: [C]: "
a = ±
" .
______________________________________________________