Answer:
12.5 in^2
Step-by-step explanation:
25=2(3.14)r
25=6.28r
Divide by 6.28 on both sides:
3.98089172=r
Now use 
:
12.5 in^2
Answer:
Option A
Step-by-step explanation:
According to the graph it never crosses the x axis meaning that it has 0 roots beecasue roots is another word for x-values.
<em>Answer:</em>
<em>2 whole 1/4</em>
<em>Step-by-step explanation:</em>
<em>When forming a perfect square trinomial you need to "complete the square".
</em>
<em>All of the steps to completing the square when solving an equation:
</em>
<em>1. The leading coefficient must be 1. </em>
<em>2. Divide b by 2.
</em>
<em>3. Square (b/2)
</em>
<em>4. Add (b/2)^2 to both sides to keep the polynomial balanced.
</em>
<em>5. You can now write the perfect square trinomial and solve.
</em>
<em><u>
</u></em>
x^2 - 3x
-3/2
(-3/2)^2 = 9/4 = 2 1/4
Hello!
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The answer is -x^2-2x-3.
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Have a great day!
