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kenny6666 [7]
3 years ago
10

How many atoms are in 68 grams of CO2

Mathematics
1 answer:
Marina86 [1]3 years ago
7 0

Answer:

204 i think

Step-by-step explanation:

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Find the center and the radius of the circle with the equation .
Simora [160]

We have been given an equation of circle x^2+2x+y^2-2y-14=0. We are asked to find the center and radius of the circle.

First of all, we will write equation of circle is standard form (x-h)^2+(y-k)^2=r^2, where center of circle is at point (h,k) and radius is r.

Let us complete the square for both x and y.

x^2+2x+y^2-2y-14+14=0+14

x^2+2x+y^2-2y=14

Adding half the square of coefficient of x and y term, we will get:

(\frac{2}{2})^2=1^2=1

(\frac{-2}{2})^2=(-1)^2=1

x^2+2x+1+y^2-2y+1=14+1+1

(x+1)^2+(y-1)^2=16

(x-(-1))^2+(y-1)^2=4^2

Therefore, the center of the circle is (-1,1) and radius is 4 units.

4 0
3 years ago
8. Harper, Elie, and Raina are having a skateboard race. Harper began at the starting line and rode at a
Kay [80]

Answer:

Step-by-step explanation:

4 0
2 years ago
A=340
ASHA 777 [7]

Answer:

  16666.25

Step-by-step explanation:

For rounded values, the minimum value they could have been rounded from is the given value less half its least-significant digit.

That means the minimums are ...

  a: 340 ⇒ 340 -5 = 335

  b: 49.8 ⇒ 49.8 -0.05 = 49.75

Then the minimum product would be ...

  (335) × (49.75) = 16666.25

8 0
2 years ago
Light travels about 186,000 mi/s, the function d(t)=186,000 gives the distance in miles that light travels in T seconds , how fa
I am Lyosha [343]
Light travels 5,580,000 mi/s in thirty seconds
4 0
3 years ago
The price of an item yesterday was 130. Today, the price fell to 91 . Find the percentage decrease.
Shalnov [3]

Answer:

30%

Step-by-step explanation:

130-91=39

39 / 130 =0.3

0.3x100=30

and you got the answer!

7 0
2 years ago
Read 2 more answers
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