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Rainbow [258]
3 years ago
15

How do you know if two line segments are perpendicular?

Mathematics
2 answers:
alexgriva [62]3 years ago
7 0

Their slopes are negative reciprocals

Brut [27]3 years ago
5 0
Perpendicular lines, when intersecting, will always create a right angle at the intersection point. A right angle is an angle that is exactly 90 degrees.
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I need help with this question:
sergij07 [2.7K]
D, because 50 is LESS THAN or the SAME the amount he can earn, but 100 is GREATER THAN or the SAME amount he can earn so e must be in the middle of the two
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3 years ago
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Un bloque de 65 kg en un plano horizontal, es empujado por una fuerza de 380 N a un ángulo de 15° respecto a la horizontal. Si e
katen-ka-za [31]

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Step-by-step explanation:

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3 years ago
What is the product -4 1/2 and 2 1/2 as a mixed number and in simplified form
luda_lava [24]

First, let's make it an improper fraction:

-9/2 * 5/2 = -45/4 = -11 1/4

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6 0
3 years ago
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Calculate size of angle x. I worked out CA=14cm
nikdorinn [45]

Answer:

∠x = 13.43°

Step-by-step explanation:

area ΔABC = 1/2 ( BD x AC) = 1/2 (22 x AC) = 42

22 x AC = 84        AC = 84/22 = 42/11 = 3.82

CD = BD - BC = 22 - 6 = 16

AD² = AC² + CD² = (3.82)² + 16² = 270.59

AD = 16.45

sin ∠x = AC / AD = 3.82 / 16.45 = 0.2322

∠x = 13.43°

5 0
3 years ago
The perimeter of a square is 66.8 cm. What is the side lengh of the square​
mylen [45]

Side length = 16.7 cm

Solution:

Perimeter of a square given = 66.8 cm

In a square four sides are equal.

The perimeter of a square = 4 × side

⇒ 4 × side = 66.8 cm

Divide both sides of the equation by 4 to equal the expression.

⇒ side = 66.8 ÷ 4

⇒ side = \frac{66.8}{4}

⇒ side = 16.7 cm

Hence, the side length of the square is 16.7 cm.

5 0
3 years ago
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