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djverab [1.8K]
3 years ago
15

ANSWER AS SOON AS POSSIBLE PLEASE:

Mathematics
1 answer:
densk [106]3 years ago
4 0

Answer:

a

Step-by-step explanation:

the protractor measure angle up to 90° and more

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An article in the Journal of Aircraft described a new equivalent plate analysis method formulation that is capable of modeling a
mezya [45]

Answer:

Given:

n = 15

c = 95% = 0.95

Let us assume:

α = 0.05

Determine the difference in value of each pair.

→See attached for the table←

→See attached for the for the workings←

Result

a) There is sufficient evidence to reject the claim that the two methods provide the same mean value for natural vibration frequency.

b) (-10.9646, -0.0068)

3 0
4 years ago
Which measurement is the most precise; 2 in., 2.5 in., 2.675 in., or 2 3/4 in. ?
Alla [95]

Answer:

2.675

Step-by-step explanation:

The more decimal points there are, the more precise it gets.

2 = 2

2.5 = 2.5

2.675 = 2.675

2 3/4 = 2.75

Since 2.675 has three decimal places, it is the most precise.

3 0
3 years ago
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A cylinder and a cone have the same diameter: 8 inches. The height of the cylinder is 9 inches. The height of the cone is 18 inc
Tamiku [17]
If i am correct i think it would be 6.89
4 0
3 years ago
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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)

6 0
3 years ago
A customer buys a bag of dog food that costs $12.79 and pays the sales tax of $0.64. How much change is due back from a $20 bill
skad [1K]
12.79 + .64 = 13.43
20 - 13.43 = $6.57
Hopes this helps :)
7 0
3 years ago
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