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3 years ago

Why did the Bulletin Board notice feel nervous

Mathematics

2 answers:

jekas [21]3 years ago

5 0

Because it was under a tack. Do u get it? ( attack )

Anarel [89]3 years ago

4 0

It was under a tack.

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Describe the types and of angles formed when you divide a circle 4 equal part

Mariulka [41]

Answer:

90°, right angles

Step-by-step explanation:

Dividing a circle into parts has no one appearance, unlike other polygons, which makes this easier.

A circle is <em>360° total, so splitting it into four congruent pieces simply makes 360/4</em> = 90° angles. 90° angles are right, by the definition.

7 0

4 years ago

Find a particular solution to y" - y' + 9y = 3 sin 3x

Dima020 [189]

Answer:

cos3x

Step-by-step explanation:

y" - y' + 9y = 3 sin 3x

$D^{2}y-Dy+9y=3 sin3x$

$y=\frac{3 sin 3x}{(D^{2} -D+9}=3 sin 3x$

here $D^2$ will be replaced by $\alpha^2$ where $\alpha$ is coefficient of x

$y=\frac{3 sin 3x}{-3^{2} -D+9}$

$y=-3\frac{sin 3x}{D}$

$y=-3\int\ {sin 3x} \, dx$

$y=-3\frac{cos3x}{-3}$

y=cos3x

hence Particular solution is cos3x

6 0

3 years ago

What is the value of x?

lidiya [134]

Answer:

x= 112

Step-by-step explanation:

3 0

3 years ago

Hii please help i’ll give brainliest

Novosadov [1.4K]

I think the answer would be 1/2 but i’m not sure if that’s what it’s asking

4 0

3 years ago

Help ASAP please

Agata [3.3K]

Answer:

55,000

Step-by-step explanation:

I already explained it on another problem but I'll show the equation again.

0.74x = 40,700

x = 55,000

7 0

4 years ago