What is the 1st term when −5z2 + 7z4 + 11z − 8z3 is arranged in descending order

Mathematics

2 answers:

krek1111 [17]3 years ago

6 0

Answer:

7z^4

Step-by-step explanation:

Look at the exponent power. The largest exponent goes first, the second largest goes second (etc.). The number/variable with no exponent will always go last.

patriot [66]3 years ago

3 0

Descending order...largest to smallest
the largest one is the one with the biggest exponent
so the first term is : 7z^4

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Ellipse with vertices (0,+6) and passing through the point (2,2) what is the equation

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3 years ago

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nalin [4]

Answer:

5x -7y = 21

Step-by-step explanation:

A sketch can convince you that BC is a transversal perpendicular to parallel lines AB and CD. The question asks for an equation for CD, so we just need to write the equation of a line through D that is parallel to AB.

One way to do this is to equate the slopes of the parallel lines:

∆y/∆x for AB = ∆y/∆x for CD

(y2 -y1)/(x2 -x1) = (y -2)/(x -7) . . . . . . where (x1, y1) = A; (x2, y2) = B; (7, 2) = D

(4 -(-1))/(1 -(-6)) = (y -2)/(x -7)

5(x -7) = 7(y -2) . . . . . . . . . . . . . cross multiply

5x -7y = 21 . . . . . . . . . . . . . . . . add 35 -7y, simplify

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Note that the graph shows the line CD is named "b", and its equation is shown at upper left. Multiplying that equation by -1 gives the one shown here.