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3 years ago

What is the distance from (6, -8) to the origin?

1 answer:

7 0

You have to use Pythagoras' theorem for this!

The triangle formed is 6 units across, and 8 units down, which means we can form an equation like this:

a^2 + b^2 = c^2
6^2 + 8^2 = c^2
36 + 64 = c^2
100 = c^2
c = 10.

The answer is 10 :)

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Element X decays radioactively with a half life of 13 minutes. If there are 530 grams of Element X, how long, to the nearest ten

Leona [35]

Answer:

$t \approx 50.4\,min$

Step-by-step explanation:

The time constant of the element X is:

$\tau = \frac{13\,min}{\ln 2}$

$\tau = 18.755\,min$

The decay function has the following form:

$\frac{m}{m_{o}} = e^{-\frac{t}{\tau} }$

$t = -\tau \cdot \ln \frac{m}{m_{o}}$

$t = -(13\,min)\cdot \ln \left(\frac{11\,g}{530\,g} \right)$

$t \approx 50.4\,min$

6 0

3 years ago

Graph -3x + 9y = -27

serious [3.7K]

Answer:

So the x-intercept is (9,0) and the y-intercept is (0,-3).

So I'm going to graph both points and connect them with a straight-edge.

Step-by-step explanation:

I would graph this using it's x- and y-intercepts.

To find the x-intercept, set y=0.

-3x+9(0)=-27

-3x+0=-27

-3x=-27

Divide both sides by -3:

x=9

To find the y-intercept, set x=0:

-3(0)+9y=-27

0 +9y=-27

9y=-27

Divide both sides by 9:

y=-3

So the x-intercept is (9,0) and the y-intercept is (0,-3).

So I'm going to graph both points and connect them with a straight-edge.

3 0

3 years ago

Bilhetes comprados 4 6 8 10 12 14 19 30

Elden [556K]

Answer:

this is in a different language

Step-by-step explanation:

is it Spanish. I don't k ow this language. I understand English

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3 years ago

Explain your answer !! Have a great day Will give brainlst

lesantik [10]

The increased heat, disruption to the water cycle and loss of shade would take a deadly toll on billions of people and livestock. Poverty and death would also descend on many of the 1.6 billion people who currently rely directly on forests for their livelihoods, including for harvesting food and medicine.

When Amazon rainforest disappears, so does Amazon rain. That's because air passing over forests picks up moisture given off by trees and plants, fueling rains. ... When those trees disappear, so does some of that rain.

The loss of trees and other vegetation can cause climate change, desertification, soil erosion, fewer crops, flooding, increased greenhouse gases in the atmosphere, and a host of problems for indigenous people.

In conclusion...Without trees, we all die. Besides providing oxygen for us to breathe, trees make life on earth sustainable. ... Trees affect everything from the air we breathe to the rain that falls from the sky. Without a robust population of trees, we die and so does our planet.

-From TheRealMarinette

Pls Do Not Copy N Paste.

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3 years ago

Crystal wants the latest limited edition of Vogue magazine, but she needs to buy food for her family. Crystal prioritizes her ne

nordsb [41]

She will most likely buy food for her family
Food comes before pleasure of ones self

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3 years ago

Read 2 more answers