2 years ago

PLEASE HELP:) Add or subtract. -16 +26 =

Mathematics

2 answers:

valkas [14]2 years ago

5 0

Answer:

i beileve the answer is 10

slava [35]2 years ago

3 0

Answer:

Step-by-step explanation:

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Differential Equations Problem

fgiga [73]

Answer:

$y=\frac{t^2e^{2t}}{3}+ce^{2t}$

Step-by-step explanation:

We have given differential equation $\frac{dy}{dt}-2y=t^2e^{2t}$

We know that linear differential equation is given by $\frac{dy}{dt}+Py=Q$

On comparing with standard equation P = -2 and Q= $t^2e^{2t}$

Now integrating factor $IF=e^{-Pdt}$

$IF=e^{-2dt}=e^{-2t}$

Now solution of differential equation is given by

$y\times IF=\int\ IF\times Q\ dt$

$y\times e^{-2t}=\int\ e^{-2t}\times t^2e^{2t}\ dt$

$y\times e^{-2t}=\frac{t^2}{3}+c$

$y=\frac{t^2e^{2t}}{3}+ce^{2t}$

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Triangle PQR is a right triangle. if PQ= 8 , what is PR?

Norma-Jean [14]

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Answer B.

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3 years ago

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Brilliant_brown [7]

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KiRa [710]

Answer:

28.26 $cm^{2}$

Step-by-step explanation:

The radius is half of the diameter. 6/2 = 3, so the radius of this circle is 3 cm.

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Plugging 3 into the radius, we have:

$3^{2}$ × π =

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9 × 3.14 = 28.26

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2 years ago