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Vesna [10]
3 years ago
10

Which faces have an area of 28 in.2? Select all that

Mathematics
1 answer:
-BARSIC- [3]3 years ago
7 0

Answer: 2, 6.

Step-by-step explanation:

On edge! If right please mark brainliest!

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If a spring is oscillating (moving) according to the velocity equation v(t) = 2sin(t) (in ft/s), then what is its displacement o
Feliz [49]

ANSWER

4 ft

EXPLANATION

The velocity equation of the oscillating spring is given by the function.

v(t)=2  \sin(t)   \:  \:  {ms}^{ - 1}

To find the displacement function, we need to to Integrate the velocity function.

s(t) = \int \: 2 \sin(t) dt

s(t) =  -  2 \cos(t)  + k

At time t=0, there was no displacement.

This implies that,

s(0) = 0

0=  -  2 \cos(0)  + k

0=  -  2 + k

k = 2

The displacement function then becomes,

s(t) =  -  2 \cos(t)  + 2

To find the displacement over the first π seconds, we put

t = \pi

into the equation for the displacement to get,

s(\pi) =  -  2 \cos(\pi)  + 2

s(\pi) =  -  2 ( - 1)  + 2

s(\pi) =  2  + 2 =4 ft

7 0
3 years ago
In a group of 120 farmers, 65 grow maize and 75 grow cassava. Of these 35 grow both maize and cassava.
Simora [160]
30 farmers grow it I think.
5 0
3 years ago
Whoever does gets brainest NO JOKE
Kruka [31]

Answer:

x=2475/31 Exact form

x=70.838 Decimal form

x=7026/31 Mixed Number form

i didnt know which one you wanted

3 0
3 years ago
Plsss help me:(! Write a real world problem for each inequality 5x – 50 100
lisabon 2012 [21]

Answer:

<em>Ed had 5 books and each book had 100 pages and it takes him 50 mins to read each book how many books can he read in a day? </em>

<em>sorry if it's not good I try.</em>

Step-by-step explanation:

4 0
2 years ago
What is the value of the expression below when w = 8?<br> w^2 - 4w - 2
alexdok [17]

Answer:

25

Step-by-step explanation:

4 0
3 years ago
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