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Ket [755]
4 years ago
13

Plz helpppppppp its mathhh

Mathematics
2 answers:
LekaFEV [45]4 years ago
6 0

first one is 24, you add all of them up and you get 24.

just olya [345]4 years ago
4 0

Answer:

a) 24

b) average kinetic E = 4

Step-by-step explanation:

Step 1:

we have 2 molecules = 5 kinetic E

2 moleules = 4 kinetic E

2 molecules = 3 kintec E

adding all of these up gives us the value of 24

Step 2:

average = the kintetic E of 3 values / how many different values there are which is 3

(3+4+5) / 3 = 4

Thus, the average kinetic E is 4

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N76 [4]

3x+7=13

move +7 to the other side

sign changes from +7 to -7

3x+7-7= 13-7

3x= 6

divide by 3 for both sides

3x/3= 6/3

x=2

Answer : x= 2

8 0
3 years ago
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Use the equality below to answer the question <br> 0.08g+0.2&lt;5
mina [271]

Answer:

g< 0.0153

Step-by-step explanation:

0.08g +0.2 < 5

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4 0
2 years ago
97 points
rosijanka [135]

Remember:

The product of the sum of two perfect cubes:

a³ + b³ = (a + b)(a² - ab + b²)

The product of the difference of two perfect cubes:

a³ - b³ = (a - b)(a² + ab + b²)

----------------------------------------------------------------------------------------------------------------

Remember to follow PEMDAS.

(5c)(5c) = 25c²

(5c)(-2/3) = -10c/3

(2/3)(5c) = 10c/3

(2/3)(-2/3) = -4/9

25c²- 10c/3 + 10c/3 - 4/9

Combine like terms

25c² (-10c/3 + 10c/3) - 4/9

25c² - 4/9

25c² - 4/9 is your answer

hope this helps

4 0
4 years ago
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What’s the question?
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23. solve for x: -5=45
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That's the answer for no 23

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