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2 years ago

To the nearest millimeter, a cell phone is 114 mm long and 69 mm wide. What is the ratio of the width to the length

Mathematics

1 answer:

sukhopar [10]2 years ago

8 0

Answer:

69mm:114 mm

Step-by-step explanation:

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3 years ago

Read 2 more answers

Find the general solution of {y}''-3y=8e^{3t}+4sin(t) .

babunello [35]

Answer:

$y(x)=C_1e^{\sqrt3t}+C_2e^{-\sqrt3t}-\frac{4}{3}e^{3t}-sint$

Step-by-step explanation:

We are given that linear differential equation

$y''-3y=8e^{3t}+4 sint$

Auxillary equation

$D^2-3=0$

$D=\pm \sqrt3$

C.F= $C_1e^{\sqrt3t}+C_2e^{-\sqrt3}$

P.I= $\frac{8e^{3t}+4sin t}{D^2-3}$

P.I= $\frac{8e^{3t}}{9-3}+4\frac{sint }{-1-3}$

P.I= $e^{ax}{\phi (D+a)}$ and $P.I=\frac{sinax}{(\phi D)}$ where D square is replace by - a square

P.I= $-\frac{4}{3}e^{3t}- sint$

Hence, the general solution

G.S=C.F+P.I

$y(x)=C_1e^{\sqrt3t}+C_2e^{-\sqrt3t}-\frac{4}{3}e^{3t}-sint$

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3 years ago

To the nearest​ millimeter, a cell phone is 114 mm long and 69 mm wide. What is the ratio of the width to the​ length

To the nearest millimeter, a cell phone is 114 mm long and 69 mm wide. What is the ratio of the width to the length