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4 years ago

????????????????????

Mathematics

1 answer:

xenn [34]4 years ago

5 0

Answer:

ASA

Step-by-step explanation:

In the 2 triangles

∠J = ∠L

side OJ = side IL

∠O = ∠I

The triangles are congruent by the angle/side/angle (ASA ) postulate

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What are the answers to the ones in the picture I don’t get it please help

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3 years ago

Read 2 more answers

A buoy oscillates in simple harmonic motion y= A cos cos as waves move past it. The buoy moves a total of 3.5 feet (vertically)

NNADVOKAT [17]

Answer:

a) $y = 1.75 ft cos (\frac{\pi}{5}t)$

b) $v(t) = -1.0995 sin (\frac{\pi}{5}t)$

Step-by-step explanation:

Part a

Since the buoy oscillates in simple harmonic motion the equation to model this is given by:

$y = A cos (wt +\theta)$

For this case from the info given we know that:

$2A = 3.5 , A = \frac{3.5}{2}= 1.75 ft$

"It returns to its high point every 10 seconds." That means period =10 $T =10s$ , and the angular frequency can be founded like this:

$w = \frac{2\pi}{10}= \frac{\pi}{5}$

Assuming that the value for the phase is $\theta =0$ our model equation is given by:

$y = 1.75 ft cos (\frac{\pi}{5}t)$

Part b

From definition we can obtain the velocity with the derivate of the position function and if w calculate the derivate we got this:

$\frac{dy}{dt}= v(t) = -1.75 ft (\frac{\pi}{5}) sin (\frac{\pi}{5}t)$

$v(t) = -1.0995 sin (\frac{\pi}{5}t)$

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3 years ago

Please I need help quickly I'm on a time limit

Ainat [17]

The third choice does not represent a proportional relationship because the y-intercept ≠ 0.
Hope that helped you.

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3 years ago

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Answer:

d = all real numbers

Step-by-step explanation:

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-9d - 8 = -9d - 8

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