3 years ago

What is the solution for the system of equations {2x-3y-2z=-7, x-3y-3z=4, x-2y-z=-3

Mathematics

1 answer:

Sergeeva-Olga [200]3 years ago

7 0

A suitable matrix calculation tells you (x, y, z) = (-8, -1, -3).

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Round 5.9496 to the nearest thousandth

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5.95

Step-by-step explanation:

that is because 96 is rounded too 100

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3 years ago

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The Miller family visited Mama's Kitchen and ordered 4 hamburgers and 3 medium fries and paid $18.86. James ordered a medium dri

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3 years ago

When a person is breathing normally the amount of air in their lawns varies sinusoidally. When full Karen’s lungs hold 2.8 L of

makkiz [27]

Answer:

$A(t) = 2.2\sin \frac{(t - 2)\pi }{6} + 0.6$

Step-by-step explanation:

Let the function of quantity in the lung of air be A(t)

So $A(t) \alpha \sin (\frac{t - \alpha }{k} )$

so, A(t) = Amax sin t + b

A(t) = 2.8t⇒ max

A(t) = 0.6t ⇒ min

max value of A(t) occur when sin(t) = 1

and min value of A(t) = 0

So b = 0.6

and A(max) = 2.2

$A(t) = 2.2\sin \frac{(t)}{k} + 0.6$

at t = 2 sec volume of a is 0.6

So function reduce to

$A(t) = 2.2\sin \frac{(t - 2)}{k} + 0.6$

and t = 5 max value of volume is represent

so,

$\sin \frac{t - \alpha }{k} = 1$

$\frac{t - 2}{k} = \frac{\pi }{2}$ when t = 5

$\frac{6}{\pi } = k$

so the equation becomes

$A(t) = 2.2\sin \frac{(t - 2)\pi }{6} + 0.6$

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3 years ago