Bring the 7 over to the other side, so you have 4x²-12x-7. Then: (2x-7)(2x+1)
X= 7/2 and -1/2
C^2 - 10c = 0
c^2 - 10c + 25 = 25
(c - 5)^2 = 25
c - 5 = sqrt 25
c = 5 (+-) sqrt 25
c = 5 (+-) 5
c = 5 + 5 = 10
c = 5 - 5 = 0
solutions are 0,10
Answer:
"D"
if you multiply by Conjugate
the denominator would end up A^2 - b^2
the answer has 25 - 10x
that is D
Step-by-step explanation:
Answer and Step-by-step explanation:
<u>The area formula for a trapezoid is as follows:</u>
A = 
Where:
A = Area
a = top side length
b = bottom side length
h = height
<u>Plug in the values given to you into the equation and solve.</u>
A = 
A = 
A = 
<u>A = 47.5 </u>
<u> is the answer.</u>
<u></u>
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