Answer:
A. 5x+6
Step-by-step explanation:
-(9x-18)+8x
-3x+6+8x (multiply across the -1/3)
5x+6 (combine 8x and -3x)
Simplify square root at end. pythagoreoms theorm
2 answers:
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The directrix of the parabola is
The parabola equation is given as:
A parabola is represented as:
By comparing both equations, we have:
4p = 1/4 ==> p = 1/16
-k= 3 ==> k = -3
The directrix is represented as:
y = k - p
So, we have:
Take the LCM
Evaluate
Hence, the directrix of the parabola is
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Answer:
Step-by-step explanation:
The given sequence is 3,15,75,375,...
The first term of this geometric sequence is
The common ratio is
The explicit formula is given by:
We plug the first term and common ratio into the formula to get: