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3 years ago

10

Conversión a fracción de 0.355

1 answer:

Likurg_2 [28]3 years ago

3 0

335/1000 if you read it out loud .335 is three hundred fifty-five thousandths

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lesya692 [45]

The answer would be B

8 0

3 years ago

Eric has 4 pieces of clay he cut out each piece of clay into thirds how many 1/3 size pieces of clay does Eric have

Ivahew [28]

Answer:

ERIC HAD 12 PIECES OF CLAY LEFT

Step-by-step explanation:

1/3 + 4 = 12

4 0

3 years ago

PLEASE HELP I DO NOT UNDERSTAND AT ALL ITS PRECALC PLEASE SERIOUS ANSWERS

Elina [12.6K]

You want to end up with $A\sin(\omega t+\phi)$ . Expand this using the angle sum identity for sine:

$A\sin(\omega t+\phi)=A\sin(\omega t)\cos\phi+A\cos(\omega t)\sin\phi$

We want this to line up with $2\sin(4\pi t)+5\cos(4\pi t)$ . Right away, we know $\omega=4\pi$ .

We also need to have

$\begin{cases}A\cos\phi=2\\A\sin\phi=5\end{cases}$

Recall that $\sin^2x+\cos^2x=1$ for all $x$ ; this means

$(A\cos\phi)^2+(A\sin\phi)^2=2^2+5^2\implies A^2=29\implies A=\sqrt{29}$

Then

$\begin{cases}\cos\phi=\frac2{\sqrt{29}}\\\sin\phi=\frac5{\sqrt{29}}\end{cases}\implies\tan\phi=\dfrac{\sin\phi}{\cos\phi}=\dfrac52\implies\phi=\tan^{-1}\left(\dfrac52\right)$

So we end up with

$2\sin(4\pi t)+5\cos(4\pi t)=\sqrt{29}\sin\left(4\pi t+\tan^{-1}\left(\dfrac52\right)\right)$

8 0

2 years ago

Read 2 more answers

Ophelia read ⅕ of her 60 pages book in ½ hour. How many pages can she read in one hour?

marishachu [46]

Answer:

She can read 24 pages in one hour.

Step-by-step explanation:

$\frac{1}{5}*2$ = $\frac{2}{5}*60pages = 24pages$

<em>hope this helps, good luck :)</em>

8 0

2 years ago

Read 2 more answers

Please help <br> What is x= ?

Nataly [62]

Answer:

$x=33^{\circ}$

Step-by-step explanation:

First off, your drawing is kinda inaccurate, because the $124^{\circ}$ looks like a right angle, but as you drew it yourself it doesn't matter too much.

We know that the sum of the angles of a triangle will always equal $180^{\circ}$ , so we have that $23+124+x=180$ .

Combining like terms on the left side gives $147+x=180$ .

Subtracting $147$ from both sides gives $x=33$ .

So, $\boxed{x=33^{\circ}}$ and we're done!

5 0

2 years ago

Read 2 more answers