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PtichkaEL [24]
3 years ago
13

The density of hydrogen is approximately 9 × 10-5 , while the density of helium is approximately 2 × 10-4 .

Mathematics
1 answer:
NeX [460]3 years ago
5 0

Answer:

Two times the density of hydrogen   =   18 x 10^-5

Step-by-step explanation: Two times the density of hydrogen   =   18 x 10^-5    is ALMOST 20 x 10^-5    or 2 x 10^-4

SO the first statement is correct.

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sukhopar [10]
If m ACD = 30 => m DCB = 60.
In triangle ACD:
sin 30^{o}=sin  \frac{AD}{AC} =\ \textgreater \   \frac{1}{2}  =  \frac{8}{AC} =\ \textgreater \  AC=16&#10;
CD= 8 \sqrt{3}
BC= 16\sqrt{3}
AC^{2}+CB^{2}=AB^{2} => AB=\sqrt{1024}=32.
=> P=16+32+16 \sqrt{3}=48 +16 \sqrt{3}.

8 0
3 years ago
X-(-4) = 10<br> X=<br> Answer here
Alinara [238K]

Answer: x = 6

Step-by-step explanation:

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8 0
4 years ago
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12 &lt; k + 11<br><br><br> The solution of the inequality is <br><br> (pls answer fast)
Free_Kalibri [48]

Answer:

Solve for K by simplifying both sides of the inequality, then isolating the variable.

Inequality Form:

k > 1

<u>Interval Notation</u>:

(1, ∞)

Step-by-step explanation:

4 0
3 years ago
Can someone help me !?
yKpoI14uk [10]
X=3
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4 0
3 years ago
Evaluate help please!
UNO [17]
<h2><u>ABSOLUTE VALUE</u></h2>

The absolute value of a number is the distance from 0 to that number. The distance is positive, hence, the absolute value is always a positive number.

<h3>Exercise</h3>

Replace the value of x:

| x - 8 |

| -4 - 8 |

| -12 | = \large{\boxed{12}}

The absolute value of a number is the numerical value of the number, without regard to its sign.

<h3><u>Answer.</u> 12</h3>
3 0
2 years ago
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