Answer:
Step-by-step explanation:
Remember:
![(\sqrt[n]{a})^n=a\\\\(a+b)=a^2+2ab+b^2](https://tex.z-dn.net/?f=%28%5Csqrt%5Bn%5D%7Ba%7D%29%5En%3Da%5C%5C%5C%5C%28a%2Bb%29%3Da%5E2%2B2ab%2Bb%5E2)
Given the equation 
, you need to solve for the variable "x" to find its value.
You need to square both sides of the equation:
Simplifying, you get:
Factor the quadratic equation. Find two numbers whose sum be 7 and whose product be -8. These are: -1 and 8:
Then:
Let's check if the first solution is correct:
(It checks)
Let's check if the second solution is correct:
(It does not checks)
Therefore, the solution is:
It’s 49 is equal to 7 times 7
Efficiency = (output)/(input).
This could also be written as
efficiency= output/(output+losses)
or
eff=(input-losses)/input
Answer:
arithmetic
Step-by-step explanation:
hope it helped
Hello!
Explanation:
↓↓↓↓↓↓↓↓↓↓
First, rewrite 10 as 2*5
Then, factor out common term 2.
<em><u>Answer⇒⇒⇒⇒2(k+5)</u></em>
Hope this helps!
Thank you for posting your question at here on Brainly.
-Charlie
