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3 years ago

5

Pedro simplified 4/7 * 8/5 ; his work is shown below. Identify where he made his error. Original division problem: 4/7 * 8/5 Ste

p 1: 4/7 * 8/5 Step 2: 4*5/7*8 Step 3: 20/56 Step 4: 5/14

2 answers:

WITCHER [35]3 years ago

7 0

Answer:

The second answer :)

scoray [572]3 years ago

4 0

I am not sure but I would say either step 2 or 4 but I am not 100% sure I hope you do well. Good Luck:)

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Initially a wheel rotating about a fixed axis at a constant angular deceleration of 0.5 rad/s 2 has an angular velocity of 0 rad

Zigmanuir [339]

Answer:

$\theta = 5.83\ rad$

Step-by-step explanation:

given,

angular deceleration, α = -0.5 rad/s²

final angular velocity,ω_f = 0 rad/s

angular position, θ = 6.1 rad

angular position at 3.9 s = ?

now, Calculating the initial angular speed

$\omega_f^2 = \omega_i^2 + 2 \alpha \theta$

$0 = \omega_i^2 - 2\times 0.5\times 6.1$

$\omega_i = \sqrt{6.1}$

$\omega_i = 2.47\ rad/s$

now, angular position calculation at t=3.9 s

$\theta = \omega_i t + \dfrac{1}{2}\alpha t^2$

$\theta =2.47\times 3.9 - \dfrac{1}{2}\times 0.5\times 3.9^2$

$\theta = 5.83\ rad$

Hence, the angular position of the wheel after 3.9 s is equal to 5.83 rad.

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3 years ago

You decide to go to the movies for your birthday. You need to buy 8 student tickets and 2 adult tickets. If student tickets are

Leto [7]

Answer:

$112.80

Step-by-step explanation:

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Next, add the two costs together:

27.36 + 85.44 = 112.80

$112.80 is your total cost.

~

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Answer:

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Step-by-step explanation:

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2 years ago