Answer:

Step-by-step explanation:
Given:

Required
Rewrite in vertex form
The vertex form of an equation is in form of: 
Solving: 
Subtract 2 from both sides


Factorize expression on the right hand side by dividing through by the coefficient of x²


Get a perfect square of coefficient of x; then add to both sides
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<em>Rough work</em>
The coefficient of x is 
It's square is 
Adding inside the bracket of
to give: 
To balance the equation, the same expression must be added to the other side of the equation;
Equivalent expression is: 
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The expression becomes



Factorize the expression on the right hand side





Make y the subject of formula

<em>Solved</em>
Multiply the number of attempts with the probability,
160 x 0.8 = 128 attempts made.
Hope this helps.
Answer:
So the greatest common factor is 3 for sure
Step-by-step explanation:
54x^4y^5z^2
i could be wrong but i am sure that's it
Answer:
96.76 square inches
Step-by-step explanation:
5.2x5.2=27.04
6.7x5.2/2=17.42
17.42x4=69.68
69.68+27.04=96.76
Hope this helps <3 Comment if you want more thanks and be sure to give brainliest (4 left) <3