3 years ago

An angle measures 86.4° less than the measure of its supplementary angle. What is the measure of each angle?

Mathematics

1 answer:

AVprozaik [17]3 years ago

4 0

Answer:

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4. Which of the following lines is perpendicular to y = -2X + 8?

Alenkinab [10]

For this case we have to by definition, if two lines are perpendicular then the product of its slopes is -1.

That is to say:

$m_ {1} * m_ {2} = - 1$

We have the following equation:

$y = -2x + 8$

So:

$m_ {1} = - 2$

Thus:

$m_ {2} = \frac {-1} {m_ {1}}\\m_ {2} = \frac {-1} {- 2}\\m = \frac {1}{2}$

Thus, a line perpendicular to the given line must have slope $m = \frac {1} {2}.$

Option A:

$x + 2y = 8\\2y = -x + 8\\y = - \frac {1} {2} x + 4$

It is not perpendicular!

Option B:

$x-2y = 6\\2y = x-6\\y = \frac {1} {2} x-3$

If it is perpendicular!

Option C:

$2x + y = 4\\y = -2x + 4$

It is not perpendicular!

Option D:

$2x-y = 1\\y = 2x-1$

It is not perpendicular!

The correct option is option B

ANswer:

Option B

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3 years ago

Marco and Drew stacked boxes on a shelf. Marco lifted 9 boxes of equal weight. Drew lifted 14 boxes, but Drew's boxes of equal w

elixir [45]

Answer:

Marco's boxes weigh 15 lbs.

Step-by-step explanation:

9x + 14(x - 8) = 233

9x + 14x - 112 = 233

23x = 345

x = 15

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3 years ago

Clark made four of his truck payments late and was fined four late fees.The total change to his savings from late fees was -$40.

Kisachek [45]

The answer is 10 dollars

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3 years ago

R= 17 cm<br> Please help I’ll mark Brainlest

olga2289 [7]

Answer:

1. r = 2.5 mm

2. r = 12ft

3. d = 34 cm

for 4-6 you use 2(pi) r

4. 25.1 ft

5. 40.8 cm

6. 22 mi

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2 years ago

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Emma begins to solve the equation -4.5x + 3 = 2 - 8.5x by adding 8.5x to each side of the equation. Which next step would result

aksik [14]

Answer:

Subtract 3 from both sides

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3 years ago

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