2 years ago

Can someone help me with this question please? fast though. i don't have a lot of time

Mathematics

1 answer:

alex41 [277]2 years ago

5 0

Ok what's your quit-ionbro I will help

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The line L1 has equation 2x+y=8.The line L2 passes through the point A(7,4) and is perpendicular to L1.

baherus [9]

If m1 and m2 are the slopes of each line, for them to be perpendicular you gotta solve
m1 * m2 = -1

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2 years ago

A formula is expressed as D= a(2+kt). Express k in the terms of D, a and t? (Show work)

Mariulka [41]

$SIMPLIFIED \: \: ALGEBRA \\ \\ \\\\We \: are \: given \: - \\ \\ \: \\ D \: = \: a \: ( \: 2 + kt \: ) \\ \\ D \: = \: 2a \: + \: akt \: \\ \\ D \: - \: 2a \: = \: akt \: \\ \\ \frac{D \: - \: 2a}{at} \: = \: k \\ \\ \\ Therefore \: , \: in \: terms \: of \: D \: , \: \: a \:, \: \: and \: \: t \: \\ \\ k \: = \: \frac{D - 2a}{at \: } \: \: \: \: \: \: \: Ans.$