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Troyanec [42]
3 years ago
14

Ok this is the last one . lol

Mathematics
2 answers:
andrew-mc [135]3 years ago
8 0

Answer:

x=31

Step-by-step explanation:

Together they make a supplementary angle which equals 180 degrees so u need to add them up

My work is in the pic

Molodets [167]3 years ago
6 0

Answer:

31

Step-by-step explanation:

Because these two angles are supplementary, their angle measures must add up to 180 degrees. Therefore:

3x+2+2x+23=180

5x+25=180

5x=155

x=31

Hope this helps!

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3x^2-9x+0<br> Factor the trinomial
sineoko [7]

Answer:

3x (x-3)

Step-by-step explanation

3x^2 - 9x + 0

The equation.

3x^2 - 3^2 × x

What I did here is that I factored out 9x to 3^2 times x.

3x (3x^2 all over 3x - 3^2 × x/ all over 3x)

So that way I can divide the number in the parentheses by 3x to take 3x out of the parentheses to factor out.

3x (x^2-1 - (3^2-1) )

You simplify to get the final answer.

3x (x-3)

Final Answer.

I hope this helps!!!!

8 0
3 years ago
A race car driver lost 8 seconds off the leader for each of the 3 pit stops the driver made. At each of the next 2 pit stops the
LiRa [457]
The answer would be A.
if he lost 8 seconds off of 3 pit stops that means he lost 24 seconds. if he can’t 10 seconds for the 2 he made, he gained 20. so therefore, he is only 4 seconds behind the leader. I hope this helps :)
8 0
4 years ago
Read 2 more answers
Pls help me i dont want to fail this class
Sauron [17]

Answer:

(i think )

y = 59

Step-by-step explanation:

8 0
3 years ago
a solution of trioxonitrate (v) acid contained 0.67g in 100cm³. 31cm³ of this solution neutralized 25cm³ of a sodium trioxocarbo
FinnZ [79.3K]

Answer:

0.67 / 100 : 31^3 : 31^3 / 25cm^3

x 10

0.67 / 100 = 67 / 10000000  grams/cm  :  29791 / 15625 / 29791    

149253.731  : 0.52

divide by 1000

= 149.253731

= 149.3 kg

Ratio kg = 149.3 : 0.5

Step-by-step explanation:

Mole Ratio

The mole ratio compares the number of moles in a balanced equation.

This is the comparison between the coefficients in front of the chemical formulas.

If a formula lacks a coefficient, it is the same as saying there is 1 mole of that species.

Mole ratios are used to predict how much product a reaction forms or to determine how much reactant is needed to make a set amount of product.

Mole Ratio Units

Mole ratio units are either mole:mole or else it is a dimensionless number because the units cancel out. For example, it's fine to say a ratio of 3 moles of O2 to 1 mole of H2 is 3:1 or 3 mol O2: 1 mol H2.

5 0
3 years ago
4 2/8 As A Improper Fraction​
DanielleElmas [232]
The answer would be: 17/4
5 0
4 years ago
Read 2 more answers
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