The answer is C 106 degrees I believe.
<span> x^2 - 8x - 28y - 124 = 0 </span>
Rearranging,
<span>x^2 - 8x = 28y + 124 </span>
Using completing the square method on the left hand side:
<span>x^2 - 8x + 16 = 28y + 140 </span>
<span>Factoring the left hand and right hand side:</span>
<span>(x - 4)^2 = 28(y + 5). </span>
<span>Now just factor out 4 and you have </span>
<span>(x - 4)² = 4[7(y + 5)] </span>
<span>So,Vertex is at (4, -5)
Focus is at F(4, -5 + 7) = F(4. 2)
And the directrix is y = -5 - 7
= -12. </span>
Choice A is the correct answer.
y=x is the diagonal that goes between the two pentagons and is also the line of reflection.
To compare two fraction you need to rewrite the fractions so they have a common denominator.
1/2 should have been rewritten as 4/8
The answer is:
D. The fraction 1/2 should have been rewritten as 4/8.
Answer:
4
Step-by-step explanation:
set it up as a fraction, 3/25, x/38. cross multiply, 3*38 then divide by 25 which is 4.56