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Elza [17]
2 years ago
8

Thank you so much!!!

Mathematics
1 answer:
vova2212 [387]2 years ago
4 0

Answer:

\fbox{\begin{minipage}{16em}Option D: y = (4/7)x + 8 is correct\end{minipage}}

Step-by-step explanation:

(1) A typical form of equation of a line is:

y = Mx + b

with, M is slope and b is y-intercept.

(2) Another straight line has equation in form of:

y = Nx + c

with N is slope and c is y-intercept

(3) If these two lines are perpendicular, according to the property of two perpendicular lines on the two-dimensional plane, we have:

M x N = -1

(4) Transform the given equation of original line into typical form:

      7x + 4y = -24\\

<=> 4y = -7x - 24

<=>  y = (\frac{-7}{4})x  - \frac{24}{4}

<=> y = (\frac{-7}{4})x - 6

=> M = \frac{-7}{4}

=> N = \frac{-1}{M}  = \frac{-1}{\frac{-7}{4} } = \frac{-4}{-7} = \frac{4}{7}

=> Option D: y = (\frac{4}{7})x + 8 is correct (Slope = \frac{4}{7})

Hope this helps!

:)

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__

<h3>series of partial sums</h3>

The partial sums, taken 3 terms at a time, are

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...

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<h3>consecutive integers</h3>

The sum of integers 1..n is given by the equation ...

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<em>Alternate solution</em>

The given series is the sum of integers 1-99, with 6 times the sum of integers 1-33 subtracted. That is, ...

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Computed that way, we find the sum to be ...

  (99)(100)/2 -6(33)(34)/2 = 4950 -3366 = 1584

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2 years ago
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