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3 years ago

Number the following expressions (1,2,3) in the order that they should be

Mathematics

1 answer:

likoan [24]3 years ago

4 0

Answer:

1. Parentheses

2. Multiplication & Division

3. Addition & Subtraction

Step-by-step explanation:

Based on the term "PEMDAS", this is a short easy trick in order to solve an equation with multiple steps.

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Please help!!!!!!1 <br><br> 5x+y=23

d1i1m1o1n [39]

Answer:

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Step-by-step explanation:

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2 years ago

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NEED HELP ASAP!!!!

Andreas93 [3]

Answer:

I got 1.75 too

Step-by-step explanation:

20/3.5 is 5.7

10/5.7 is 1.75

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3 years ago

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The Laplace Transform of a function f(t), which is defined for all t > 0, is denoted by L{f(t)} and is defined by the imprope

lesya692 [45]

(1) D

$L_s\left\{t\right\} = \displaystyle\int_0^\infty te^{-st}\,\mathrm dt$

Integrate by parts, taking

$u = t \implies \mathrm du=\mathrm dt$

$\mathrm dv = e^{-st}\,\mathrm dt \implies v=-\dfrac1se^{-st}$

Then

$L_s\left\{t\right\} = \displaystyle \left[-\frac1ste^{-st}\right]\bigg|_{t=0}^{t\to\infty}+\frac1s\int_0^\infty e^{-st}\,\mathrm dt$

$L_s\left\{t\right\} = \displaystyle \frac1s\int_0^\infty e^{-st}\,\mathrm dt$

$L_s\left\{t\right\} = \displaystyle -\frac1{s^2}e^{-st}\bigg|_{t=0}^{t\to\infty}$

$L_s\left\{t\right\} = \displaystyle \boxed{\frac1{s^2}}$

(2) A

$L_s\left\{1\right\} = \displaystyle\int_0^\infty e^{-st}\,\mathrm dt$

$L_s\left\{1\right\} = \displaystyle\left[-\frac1se^{-st}\right]\bigg|_{t=0}^{t\to\infty}$

$L_s\left\{1\right\} = \displaystyle\boxed{\frac1s}$

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2 years ago

Find the scale factor

kakasveta [241]

Answer:

Step-by-step explanation:

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-Dominant- [34]

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3 years ago