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kow [346]
2 years ago
15

The displacement of a particle on a vibrating string is given by the equation s(t)=11+1/4sin(14PIt), where s is measured in cent

imeters and in seconds. Find the velocity of the particle after t seconds.
Mathematics
1 answer:
Lelechka [254]2 years ago
6 0
<span>Find the first derivative of the given expression.

</span>s(t)=11+\frac{ 1 }{ 4}\sin(14{\pi}t) &#10;\\&#10;\\s^{'}(t)=v(t)=\frac{ 7 }{ 2 }{\pi}\cos(14{\pi}t)<span>
</span>
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5x + 3y = -2<br> 3x + 2y = -1
Effectus [21]

Answer:

(-1,1)

Step-by-step explanation:

5x+2y= -2,  x= -1/3 - 2/3y

5( -1/3 - 2/3y) +3y= -2

y= 1

x= -1/3 - 2/3 × 1

x= -1

7 0
3 years ago
Read 2 more answers
Solve for this equation. x-2/5=1/5
Studentka2010 [4]

Answer:

3/5   or

0.6

Step-by-step explanation:

You could change these fractions to decimals, but you may not be convinced that the answer you get is the same as just using fractions. I'll start by using fractions.

x - 2/5 = 1/5                        Add 2/5 to both sides

x - 2/5 + 2/5 = 1/5 + 2/5     The left side cancels to 0.

x = 1/5 + 2/5                       The denominators (bottom the fraction) are the same. Just add the tops.

x = (1 + 2)/5

x = 3/5

=======================

If you use your calculator to find 2/5 and 1/5, you can get the same answer as 3/5

2

÷

5

=

0.4

By the same method, 1/5 = 0.2

Substitute into the original equation

x - 0.4 = 0.2                       Add 0.4 to both sides

x - 0.4 +0.4 = 0.2 + 0.4    The left side reduces just to x

x = 0.2 +0.4

x = 0.6

If you let your calculator do the work, like this

3

÷

5              

=

0.6

The answers are the same.

7 0
3 years ago
Read 2 more answers
What is 4.41 as a improper fraction?
crimeas [40]

Answer:

441/100

Step-by-step explanation:

To turn a decimal into a fraction we need to multiply it by 100

4.41*100=441

Now we need to divide it by 100

441/100

441 and 100 dont share any common multiplies besides 1, so we cant simplify the fraction.

7 0
3 years ago
HELP PLEASE
Vikki [24]

Answer:

The answer is 1.35 answer (1). You can graph both equations to give you the answer.

Step-by-step explanation:

Graph the equations and see where they intersect.

5 0
2 years ago
Read 2 more answers
Which of the following is not a promotional tactic used by a seller?
Leviafan [203]

Answer:

we conclude that the 'bait and switch' technique is not a promotional tactic used by a seller.

Hence, 'a' is the correct option.

Step-by-step explanation:

From the given options, the 'bait and switch' technique is not a promotional tactic used by a seller.

'Bait and switch' is a deceptive sale practice using which the sells try to attract (bait) the customers by offering attractive prices on certain items, but when the customers tend to go to the shop to buy the items, they witness the unavailability of the goods, or find the prices go higher compared to what they had been offered.

Now, since the customers are already present at the shop, the sellers try to pressurize the customer so that they could buy something else.

Therefore, we conclude that the 'bait and switch' technique is not a promotional tactic used by a seller.

Hence, 'a' is the correct option.

6 0
2 years ago
Read 2 more answers
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