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notsponge [240]
2 years ago
8

What can antarctic ice core samples tell us about atmospheric co2 levels? select all that apply.

Mathematics
1 answer:
NeTakaya2 years ago
4 0
CO2 ice core data confirms CO2 measurements taken directly from the atmosphere. Ice cores can help scientists estimate atmospheric CO2 levels from centuries ago.
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20(20-x)=300 what is x
neonofarm [45]

Answer:

x = 5

Step-by-step explanation:

20(20-x)=300

1. Divide both sides by 20.

20(20-x)/20 = 300/20

2. Simplify.

20-x=15

3. Subtract 20 from both sides.

20-x-29=15-20

4. Simplify.

-x=-5

5. Divide both sides by -1.

-x/-1 = -5/-1

6. Simplify.

x=5

5 0
3 years ago
You are challenged to a lucky draw game. If you draw a face card (K, Q, J) from a standard deck of cards, you earn 10 points. If
sveticcg [70]
There are 3 face cards for each of the 4 suits, leading to a total possible gain of 120, there are 40 other cards leading to a total possible loss of 80.
120 - 80 = 40.
40 / 52 (total number of cards) = about .77

Final Answer:
The expected value of a draw is positive 0.77 points.
Hope I helped :)
7 0
3 years ago
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Penelope drove 27 kilometers. Which expression finds the distance she drove in centimeters? Use the metric table to help answer
vovikov84 [41]

Answer:

Step-by-step explanation:

1km=1000 m

1 m=100 cm

1 km=1000×100=100000 cm

27 km=100000×27=2,7 00,000 cms

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3 years ago
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Please find attached photograph for your answer.

7 0
2 years ago
PLSSS HELP!! I'LL GIVE BRAINLIEST IF RIGHT Which is the equation of a parabola with a directrix at y = 2 and a focus at (5, 0).
goldfiish [28.3K]

Answer:

First, we need to set up a (y−k)^2=4p(x−h). After plugging in all of your values, you would get (x-5)^2=-4(y-1). Now, we need to solve in terms of y by dividing each side by the factors that don't contain the variable

Step-by-step explanation:

3 0
3 years ago
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