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3 years ago

08. Uma sala deb°série tem

Mathematics

1 answer:

Anit [1.1K]3 years ago

8 0

Answer:

jhshehey ekjrjrur ieyehrof8 iehgejti

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Ater a blizzard the amount of snow on the ground melted by 3 inches one day and then another 8 inches the next day. Write an exp

Hoochie [10]

Answer:

11 inches

Step-by-step explanation:

Let the level of ground level be g

On first day, amount of snow melted by 3 inches

So, level of ground melted= (g- 3) inches

Next day, amount of snow melted by 8 inches

So, level of ground level melted = (g- 3-8 )inches

Hence, total change in the ground level = ( g- 11) inches

Hence, amount of snow on ground level melted by 11 inches

Hence, the correct answer is 11 inches

6 0

3 years ago

A spring with a spring constant k of 100 pounds per foot is loaded with 1-pound weight and brought to equilibrium. It is then st

shutvik [7]

Answer:

Equation of movement y(t)

$y(t)=sin(10t-\pi/2)$

Amplitude: 1 inch

Period: 0.628 seconds

Step-by-step explanation:

If there is no friction, the amplitude will be the length it was streched from the equilibrium. In this case, this value is 1 inch

$A=1\,inch$

The period depends on the mass and the spring constant.

The formula for the period is:

$T=\frac{1}{f} =\frac{2/pi}{\omega} =2\pi\sqrt{\frac{m}{k}}=2\pi\sqrt{\frac{1}{100}}=2\pi*0.1=0.628\, s$

The model y(t) for the movement of the mass-spring system is

$y(t)=A\cdot sin(\omega t +\phi)\\\\A=1\\\\\omega=\sqrt{k/m} =\sqrt{100/1}=10\\\\y(0)=Asin(\phi)=-A\\\\ \phi=arcsin(-1)=-1.571=-\pi/2\\\\\\y(t)=sin(10t-\pi/2)$

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3 years ago

You have a total of $2.75 in change made up of 30 pennies, 6

Dmitrij [34]

Answer: You have 1.65 will be you answer

Step-by-step explanation:

3 0

3 years ago

PLZ ANSWER 6 AND 7. SHOW YOUR WORK TOO!!

anygoal [31]

6) subtract 16 on both sides

then it should be x/4>18

then you would times 18 by 4 and get

c as the answer

7) the answer is d.

because 52-12 is 40 and 52/4 is 13

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3 years ago

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Flip a coin 20 times. Tell me your experimental probability of flipping heads. ___

pav-90 [236]

Answer:

1/2 is the probability

Step-by-step explanation:

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3 years ago

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