3 years ago

Segments MN and OP are _____ sides.

Mathematics

2 answers:

Nutka1998 [239]3 years ago

7 0

Answer:

Segments MN and OP are parallel sides

Georgia [21]3 years ago

6 0

Answer:

Sides MN and OP are parallel sides

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Answer:

8:16

Step-by-step explanation:

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2 years ago

Which statement is true?

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The answer is D.

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3 years ago

The mean length of 7 childrens' index finger is 9.4cm. The mean length of 5 adults' index finger is 10.2cm. What is the mean len

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Answer:

9.73 cm to 2 DP

Step-by-step explanation:

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If a simple harmonic motion is described by x = 3 cos(πt), starting from t = 0 s, what is the first occurrence of a value of t f

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Answer:

The first occurence of t for which x = 0 is t = 0.5.

Step-by-step explanation:

The harmonic motion is described by the following equation.

$x(t) = 3\cos{\pi t}$

What is the first occurrence of a value of t for which x = 0?

This is t when $x(t) = 0$ . So

$x(t) = 3\cos{\pi t}$

$3\cos{\pi t} = 0$

$\cos{\pi t} = \frac{0}{3}$

$\cos{\pi t} = 0$

The inverse of the cosine is the arcosine. So we apply the arcosine function to both sides of the equality.

$\arccos{\cos{\pi t}} = \arccos{0}$

$\pi t = \frac{\pi}{2}$

$t = \frac{\pi}{2 \pi}$

$t = \frac{1}{2}$

$t = 0.5$

The first occurence of t for which x = 0 is t = 0.5.

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3 years ago

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3 years ago