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3 years ago

Oaquin counted the number of steps on each level as he ran up the stairs of the tower.

Mathematics

1 answer:

Allushta [10]3 years ago

4 0

Answer:

Step-by-step explanation:

As soon as you see a number times 1 thats how you can find your unit rate, or constant of proportionality.

So since we know that we are going by 32's, we would do 32 23 times, in other words, 32x23

And when you use a CALCULATOR or pencil and paper you get D, which is 736 stairs

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The perfect square between 15,47

spin [16.1K]

There are 3. They're 16,25 and 36

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3 years ago

If people blink about 13 times per minute, how many times do they blink in 7 hours?

SCORPION-xisa [38]

Answer:

Step-by-step explanation:

1 hour=60 min

7 hours=60×7=420 min

number of blink=420×13=5460

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3 years ago

Which net matches the figure

Tamiku [17]

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3 years ago

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Hi guys, can anyone help me with this triple integral? Many thanks:)

Crank

Another triple integral. We're integrating over the interior of the sphere

$x^2+y^2+z^2=2^2$

Let's do the outer integral over z. z stays within the sphere so it goes from -2 to 2.

For the middle integral we have

$y^2=4-x^2-z^2$

x is the inner integral so at this point we conservatively say its zero. That means y goes from $-\sqrt{4-z^2}$ and $+\sqrt{4-z^2}$

Similarly the inner integral x goes between $\pm-\sqrt{4-y^2-z^2}$

So we rewrite the integral

$\displaystyle \int_{-2}^{2} \int_{-\sqrt{4-z^2}}^{\sqrt{4-z^2}} \int_{-\sqrt{4-y^2-z^2}}^{\sqrt{4-y^2-z^2}} (x^2+xy+y^2)dx \; dy \; dz$

Let's work on the inner one,

$\displaystyle\int_{-\sqrt{4-y^2-z^2}}^{\sqrt{4-y^2-z^2}} (x^2+xy+y^2)dz$

There's no z in the integrand, so we treat it as a constant.

$=(x^2+xy+y^2)z \bigg|_{z=-\sqrt{4-y^2-z^2}}^{z=\sqrt{4-y^2-z^2}}$

So the middle integral is

$\displaystyle\int_{-\sqrt{4-z^2}}^{\sqrt{4-z^2}}2(x^2+xy+y^2)\sqrt{4-y^2-z^2} \ dy$

I gotta go so I'll stop here, sorry.

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2 years ago

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BRAINLYIST !

AVprozaik [17]

Answer:

Step-by-step explanation:

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3 years ago