Factor completely.81k3m - 375m4
A. 3m(27k - 5m)(k2 + 15km + 25m2)
B. 3m(3k + 5m2)(9k2 - 15km + 25km2)
C. (9km - 15m2)(9k2 + 25m2)
D. 3m(3k - 5m)(9k2 + 15km + 25m2)
Answer: D
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Use a formula to express 
as a function of t if 
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Tell whether the relation is reflexive, symmetric, or transitive on the set of all people. Also tell whether the relation is an equivalence relation."Is a cousin of"
A. Transitive; not an equivalence relation B. None; not an equivalence relation C. Symmetric and transitive; not an equivalence relation D. Symmetric; not an equivalence relation
Add or subtract as indicated. Write the answer in simplest form.
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B. - 
C. - 
D. 
A plane in three dimensional space can be written as ax + by + cz = d. We can find the possible intersections of planes in this form by writing them as systems of linear equations and using reduction to solve them. If d = 0 in each equation, then we have a homogeneous system with either a unique solution or infinitely many solutions.Determine whether the intersection of the planes: 
has a unique solution or infinitely many solutions; then solve the system.
What will be an ideal response?