Write a Polar Equation In $r$ And $\theta$ Of an Ellipse with the Focus at the Origin, with Ellipse

question 152

Multiple Choice

Write a polar equation in $r$ and $\theta$ of an ellipse with the focus at the origin, with the eccentricity $\frac { 6 } { 7 }$ and directrix $x = - 13$ .

• A)
• \(r = \frac { 78 } { 7 - 6 \cos \theta }\)
• B)
• \(r = \frac { 13 } { 7 + 6 \cos \theta }\)
• C)
• \(r = \frac { 78 } { 1 - 6 \cos \theta }\)
• D)
• \(r = \frac { 78 } { 7 + 6 \cos \theta }\)
• E)
• \(r = \frac { 6 } { 3 - 6 \sin \theta }\)

Estimate the prevalence of lifestyle factors that affect pregnancy outcomes.

Comprehend the preventable causes of birth defects and congenital disabilities.

Recognize neurotoxicants and their effects on fetal development.

Understand the importance of workplace safety for pregnant women.

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