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4 years ago

Nitrogen makes up about 78% of air. If you have 2 L of air, how many liters of nitrogen are in the air?

Mathematics

1 answer:

NemiM [27]4 years ago

5 0

Answer:39%

Step-by-step explanation:

78/100÷2

78/100×1/2

=39

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Which angles are vertical angles?

shutvik [7]

Answer:

<DCA and <BCF

Step-by-step explanation:

The vertically opposite angles are the angles <DCA and <BCF. These angles are always equal.

When two lines cross, two angles that are vertical two one another are equal.
They are know as vertically opposite angles.
When two straight lines cross each other, four angles are produced.
The two vertically opposite have the same values.

6 0

3 years ago

Due tomorrow Please help!!

anastassius [24]

Answer:

$\frac{1}{8}$ = $\frac{b}{4^{2} }$

b = $\frac{1}{8}$ × $4^{2}$

b = $\frac{4^{2} }{8}$

then b = $\frac{c^{2} }{a}$ that is ORANGE

-2 - v = -7

v = -7 +2

then v = k + m that is BROWN

$\frac{14}{q}$ = $\frac{-7}{-4}$

q = $\frac{14 * -4 }{-7}$

then q = $\frac{ps}{r}$ that is YELLOW

4m + 2(n) = 5 (n)

4m = 5 (n) - 2n

4m = 3n

m = $\frac{3n}{4}$

then m = $\frac{3n}{4}$ that is RED

-8 = $\frac{x}{-5}$ - 6

$\frac{x}{-5}$ = -8 + 6

x = -5 (-8 + 6)

then x = y( w + z ) that is LIGHT GREEN

7 0

3 years ago

Mark tossed six balls

Ivanshal [37]

Six balls fell back down

8 0

3 years ago

Read 2 more answers

Question 2

Free_Kalibri [48]

I’m terms of 12 in is the correct answer.

7 0

2 years ago

Mr. Toler has a piece of wood that is 8 1/4 feet in length he wants to cut it into pieces that are three over 4 foot in length.

monitta

Answer:

11 pieces.Step-by-step explanation:We must divide 8 1/4 by 3/48 1/4 = 33/4Dividing:33/4 / 3/4= 33/4 * 4/3= 33/3= 11.

Step-by-step explanation:

11 pieces.Step-by-step explanation:We must divide 8 1/4 by 3/48 1/4 = 33/4Dividing:33/4 / 3/4= 33/4 * 4/3= 33/3= 11.

5 0

2 years ago