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3 years ago

The intercepts 9x^2+4y^2=36

Mathematics

2 answers:

Nesterboy [21]3 years ago

8 0

Answer:

Step-by-step explanation:

Pie3 years ago

5 0

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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

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

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

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

7 0

3 years ago

4. Solve for x: -2x + 3 = x - 15<br> (A) 6<br> (B) -3<br> (C) 3<br> (D) 6

Ganezh [65]

The answer is D, 6 because when you add 2x to both sides to negate the 2x on the left, you are left with 3 = 3x - 15. you then want to add 15 to both sides to negate the 15 on the right. you are left with 18 = 3x. divide by 3 and you are left with x = 6

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4 years ago

chad has two pieces of wood.one piece is7\12 foot long the second piece is 5\12 foot longer then the first piece. how long is th

AnnyKZ [126]

These fractions both have the same denominators so we can add them without having the equate them first.

The only thing you have to do is add the numerators (7 and 5), and keep the denominators the same.

7 5 12
-- + --- = ------
12 12 12

When you simplify 12/12 it becomes 1.

The second piece of wood is 1 foot long

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3 years ago

I need the answer fast pls

wel

82 and 86 is the answer

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3 years ago

A selfie ring light is originally priced at $55 is marked down 25%. What is the sale price?

maks197457 [2]

Answer:

41.25

Step-by-step explanation:25% of 55 is 13.75

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3 years ago