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Thepotemich [5.8K]
3 years ago
10

A buoy floating in the ocean is bobbing in simple harmonic motion with period 3 seconds and amplitude 13in. Its displacement d f

rom sea level at time t=0 seconds is 0in, and initially it moves downward. (Note that upward is the positive direction.) Give the equation modeling the displacement d as a function of time t.
Mathematics
1 answer:
Ymorist [56]3 years ago
5 0

You can try to find your answer at preanswer.com

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Trisha helped clean up her neighborhood by picking up plastic she collected 3/4 pound of plastic the first day and 1/6 pound of
AysviL [449]
She collected more 1/3 pounds on the first day
7 0
3 years ago
What are the first and last terms of this geometric series
11Alexandr11 [23.1K]
ANSWER

E. 10 and 640


EXPLANATION


The given series is

\sum_{i=1}^45 \times 2^{2i-1}


To find the first term of the series we substitute i=1 to get,


a_1 = 5 \times  {2}^{2 \times 1 - 1}


a_1 = 5 \times  {2}^{ 1}  = 10



For the last term of the series, we substitute i=4 to obtain,

a_4 = 5 \times  {2}^{2 \times 4 - 1}


a_4 = 5 \times  {2}^{7}



This implies that,


a_4 = 5 \times  128 = 640


Therefore the correct answer is E
7 0
3 years ago
The sum of four times a number and two is twenty-six. Find the number.
Yakvenalex [24]

Answer:

n = 6

Step-by-step explanation:

4n + 2 = 26,

4n = 24,

n = 6

6 0
2 years ago
Read 2 more answers
Whats the point of intersection between these two lines?<br><br>x+y=10<br>x+2y=14
Yakvenalex [24]
You have to make an equation that i forgot what was called but you just take
x+y=10 and multiply it by -2 so the y’s can cancel out

so you’ll end up with:

-2x-2y= -20
(+) x+2y=14

you’ll get : x = -6


then you plug in -6 for x, solve for y and your coordinates will be

(-6 , 10)
4 0
3 years ago
Read 2 more answers
Work out root2^4+3^2<br> Work out root 10^2-2^6
iren2701 [21]

Answer:

A, B

Step-by-step explanation:

√(2^4+3^2)

√(16+9)

√25

5(Option A)

√(10^2-2^5)

√(100-64)

√36

6(Option B)

6 0
2 years ago
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