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2 years ago

Does -3 and -2 make a right triangle

Mathematics

2 answers:

pickupchik [31]2 years ago

6 0

Answer: no

Explain: you can’t make a right triangle with negative numbers. Plz mark brainlest

Doss [256]2 years ago

5 0

Answer:

There is no such thing as negative distances. In order to do Pythagoras theorem you need to know which one is the hypotenuse

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If 2.5 mol of dust particles were laid end to end along the equator, how many times would they encircle the planet? The circumfe

Natalka [10]

Answer:

They encircle the planet $3.76\times 10^{11}$ times.

Step-by-step explanation:

Consider the provided information.

We have 2.5 mole of dust particles and the Avogadro's number is $6.022\times 10^{23}$

Thus, the number of dust particles is:

$2.5\times 6.022\times 10^{23}=15.055\times 10^{23}$

Diameter of a dust particles is 10μm and the circumference of earth is 40,076 km.

Convert the measurement in meters.

Diameter: $10\mu m\times \frac{10^{-6}m}{\mu m} =10^{-5}m$

If we line up the particles the distance they could cover is:

$15.055\times 10^{23}\times 10^{-5}=15.055\times 10^{18}=1.5055\times 10^{19}$

Circumference in meters:

$40,076km\times \frac{1000m}{1km}=40,076,000 m$

Therefore,

$\frac{1.5055\times 10^{19}}{40,076,000} = 3.76\times 10^{11}$

Hence, they encircle the planet $3.76\times 10^{11}$ times.

8 0

3 years ago

Evaluate the expression: a(b – c) if a = -8, b = 12, and c = 4

Llana [10]

Answer:

-64

Step-by-step explanation:

a(b - c)

a = -8

b = 12

c = 4

So, you'd plug in those numbers:

-8(12 - 4)

You'd start within the parenthesis's, so:

(12 - 4), which equals (8)

-8(8)

= -64

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2 years ago

Read 2 more answers

3X-1=4 THEN 2X= ...?

strojnjashka [21]

3x=4+13x=5x=5/32x=2* 5/32x=10/3

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2 years ago

Help?<br>what do I do? Thanks x

Elena L [17]

The correct answer would be 3

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3 years ago

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coldgirl [10]

Answer:

6t=9? let me know if that's correct x

Step-by-step explanation:

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2 years ago

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