2 years ago

PLS SOMEONE HELP ME

Mathematics

1 answer:

Anarel [89]2 years ago

4 0

A and D are 85 degrees

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Plz help asap !!! The high school jazz band is selling homemade leather bracelets at a local craft fair to raise money for a tri

coldgirl [10]

Answer:

b. y=2x-200

c. there will be no profit because 2 times 100 = 200, meaning they only earned back the money they already spent.

d. (domain or y-values) minimum: -200 maximum: 320

(range or x-values) maximum: 260

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2 years ago

Please help! Chapter test tomorrow!!<br>PLEASE i need to show the work, the equations.

Nana76 [90]

Answer:

x=6

Step-by-step explanation:

4x-15=2x-3

+15 +15

4x=2x=12

/2 /2 +12

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4 0

3 years ago

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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

What is the size of angle x?

valentinak56 [21]

45 is the answer i hope this helps

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2 years ago

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What is the mean of 320,294,265, and 301

Gwar [14]

adding 320,294,265 and 301=1180

4 divided by 1180=answer 295

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2 years ago

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