Answer:

Step-by-step explanation:
The vertex form of an equation of a parabola y = ax² + bx + c:

(h, k) - vertex

We have the equation:

Substitute:

Finally:

Answer:
x=1
Step-by-step explanation:
Answer:
its b
Step-by-step explanation:
If the denominator does not equal 0, the equivalent expression of
is 

<h3>How to determine the equivalent expression?</h3>
The expression is given as:

Divide 14 by 7

Apply the law of indices

Evaluate the differences in the exponents

Hence, the equivalent expression of
is 
Read more about equivalent expressions at:
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Answer:70
Step-by-step explanation:
10^2 =100
-2(10+15) = -2(15)=-30
100-30= 70