3 years ago

Which pair of equations represents parallel lines?

Mathematics

2 answers:

suter [353]3 years ago

7 0

Answer:

A) parallel

B) not

C) not

D) parallel

jasenka [17]3 years ago

3 0

Answer:

It should be just D) y=2x+7

y=2x-7

Step-by-step explanation:

Parallel lines have the same slope :D

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NNADVOKAT [17]

Answer:

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Step-by-step explanation:

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3 years ago

Triangle J K L is shown. Angle J L K is 105 degrees. The length of J K is 4.7 and the length of J L is 2.7.

cluponka [151]

Answer:

The approximate measure of angle K is 34°

Step-by-step explanation:

In ΔJKL

∠L = 105°

JK = 4.7

JL = 2.7

Sine Rule:

$\frac{SinA}{a} = \frac{SinB}{b}= \frac{SinC}{c}$

So, $\frac{SinL}{JK} = \frac{SinK}{JL}\\\frac{SinL}{4.7} = \frac{SinK}{2.7}\\\frac{Sin 105}{4.7} = \frac{SinK}{2.7}\\\frac{Sin 105 \times 2.7}{4.7} = SinK\\\frac{(0.9659 \times 2.7)}{4.7} = Sin K\\\frac{2.60793}{4.7} = Sin K\\0.5549 = Sin K\\Sin^{-1}(0.5549)= K\\K = 33.70$