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marshall27 [118]
3 years ago
12

Could two lines with negative slope be perpendicular? Explain.

Mathematics
1 answer:
zhannawk [14.2K]3 years ago
3 0
No.  For two lines to be perpendicular their slope must be the negative reciprocals of one another, mathematically:

m1*m2=-1

So if the slope of one line is negative, the line perpendicular to this must be positive by definition.
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- a(-4-5a) - 3a(2 + a) =
Lorico [155]

Answer:

Let's simplify step-by-step.

(−a)(−4 − 5a) − 3a(2 + a)

Distribute:

= (−a)(−4) + (−a)(−5a) + −3a^2 + −6a

= 4a + 5a^2 + −3a^2 + −6a

Combine Like Terms:

= 4a+5a^2 + −3a^2+ −6a

= (5a2+ −3a^2) + (4a + −6a)

= 2a2 + −2a

Final Answer:

= 2a^2−2a!

4 0
3 years ago
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a rectangular table top has a length of 4 3/4 ft and an area of 11 7/8 square feet what is the width of the table top
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4¾=19/4 and 11⅞=95/8.
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3 years ago
How many times does 8 go into 65
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4 years ago
A rectangle’s area and perimeter have the same numerical value. The length of the rectangle is 12 units. What is the width of th
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Answer:

2.4

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