3 years ago

??????????????????????????????

Mathematics

2 answers:

algol133 years ago

8 0

I got B.... I’m not sure tho but I hope it helps

andriy [413]3 years ago

5 0

Answer:

Its B

Step-by-step explanation:

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What is six hundred twenty-nine thousandths written in standard form

-Dominant- [34]

Answer:

0.629

I hope this helps!

4 0

3 years ago

3. What is the sum or difference? 3x8 - 7x8

sammy [17]

Answer:

-32

Step-by-step explanation:

3*8=24

-7*8=-56

-56+24=-32

8 0

3 years ago

Can y’all please help me answer these questions

mario62 [17]

Step-by-step explanation:

⇒ $V = \pi r^{2}h$

⇒ $V = \pi(10)^{2}(40)$

⇒ $V = 4000\pi$

⇒ $V = 12566.4cm^{3}$

⇒ $V = \frac{1}{3}\pi r^{2}h$

⇒ $V = \frac{1}{3}\pi (8)^{2}(h)$

As we know the radius and slant height, we can use Pythagoras' Theorem to find the perpendicular height.

⇒ $a^{2} + b^{2} = c^{2}$

⇒ $(8)^{2} + h^{2} = 20^{2}$

⇒ $h = \sqrt{20^{2} - 8^{2}}$

⇒ $h = 4\sqrt{21}$

Now substitute this into the volume formula.

⇒ $V = \frac{1}{3}\pi (8)^{2}(4\sqrt{21})$

⇒ $V = \frac{256\sqrt{21} }{3}\pi$

⇒ $V = 1228.5mm^{3}$

⇒ $V = l^{3}$

⇒ $V = (3.1)^{3}$

⇒ $V = 29.8inches^{3}$

⇒ $V = \frac{1}{3}lwh$

⇒ $V = \frac{1}{3}(12)(4)(6)$

⇒ $V = 96inches^{3}$

6 0

3 years ago

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Vlad [161]

Answer:

Step-by-step explanation:

Idk

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3 years ago

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Round to 2 SF<br> 646.42<br> plz

Lelechka [254]

Answer:

650

Step-by-step explanation:

2sf= the first two figures

so you count to the first two sf numbers so in this case

it would be 64 then you look at the next one. But if it is 4 or below you round or if it is 5 and above you rounded up

in this case the third digit is a 6 so you would round up to 5

answer =650

8 0

3 years ago