3 years ago

Are these two lines parallel , explain or show your reasoning ?

Mathematics

2 answers:

Inessa05 [86]3 years ago

6 0

Yes they are parallel lines because they do not meet. they are straight lines

Troyanec [42]3 years ago

6 0

yes, they arent intersecting and they have the same slope

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if the equation 2x^2+ bx+ 5=0 has no real solutions, which of the following must be true A. b^2 < 10 B. b^2> 10 C. b^240

melisa1 [442]

Answer:

C. b²< 40

Step-by-step explanation:

2x²+ bx + 5=0 has no real solutions

=> D< 0

b² < 4ac

b²< 4(2)(5)

b²< 40

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3 years ago

Write an equation that is perpendicular to y= 1/2x+5 and passes through (4,8)

goblinko [34]

Answer:

y = -2x + 16.

Step-by-step explanation:

The slope of the perpendicular line = -1 / slope of the given line

= -1 / 1/2 = -2.

Using the point slope form of the equation of a straight line:

y - y1 = m (x - x1)

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3 years ago

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3 years ago

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kolezko [41]

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2 years ago

(I’ll mark brainliest ) The cross country running team is hosting their first home race and needs to plan and set up the course.

Aneli [31]

Answer:

Smallest: 15,840 ft

Largest: 16,896 ft

Step-by-step explanation:

1 mi = 5,280 ft

Setup proportion to solve for the smallest:

$\frac{1mi}{5,280ft} =\frac{3mi}{xft}$

Do butterfly method and you should get this:

$xft=3(5280)\\x=15,840ft$

Setup proportion to solve for the largest:

$\frac{1mi}{5,280ft} =\frac{3.2mi}{xft}$

Butterfly method:

$xft=3.2(5280)\\x=16,896ft$

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2 years ago