The microsphere nanoscope is a powerful tool that allows humans to see structures 9 × 10–9 meter in diameter.
2 answers:
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Answer:
D and F
Step-by-step explanation:
can be rewritten as
.
From there you can use the quadratic formula (ignore the A, I can‘t seem to remove it), where a=1, b=4, and c=-8.
Then you get
Then you get
So
Which means or
which are choices D and F.
Line 1 and line 4 are parallel
Step-by-step explanation:
Two lines are said to be parallel if they have same slope.
In order to compare the lines given, we have to write them all in the same form, and then compare their slopes.
Line 1:
Applying distributive property,
Line 2:
Line 3:
Applying distributive property,
Line 4:
re-arranging,
Now we have rewritten all the lines in the form , where m is the slope. By comparing the values of m, we see:
Therefore, the lines which are parallel are line 1 and line 4.
Learn more about parallel and perpendicular lines:
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