<h3>#29</h3>
<u>Find the value of x:</u>
- 7x - 2 = 55 + 4x (as corresponding angles)
- 7x - 4x = 55 + 3
- 3x = 57
- x = 19
<u>Find the value of y:</u>
- y = 7x - 2 (as alternate exterior angles)
- y = 7*19 - 2
- y = 131
<h3>#30</h3>
<u>Find the value of x:</u>
- 14x - 34 = 9x + 1 (as alternate interior angles)
- 14x - 9x = 1 + 34
- 5x = 35
- x = 7
<u>Find the value of y:</u>
- y + (9x + 1) = 90 (as complementary angles)
- y = 90 - 9*7 - 1
- y = 26
Answer:
2 CH4(g) + 4 O2(g) --> 2 CO2 (g)+ 4 H2O(g)
Step-by-step explanation:
The number are subscripts.
Now count the number of each kind of atom on the left and right side of the equation. Note, you have 4 H on the left and as written you have only 2 on the right. So add a coefficient-- a number in front of the formula.
CH4 +O2 ----- CO2 + 2 H2O
With the added coefficient in front of water, the number of hydrogens balance but the number of oxygens do not. There are only 2 oxygens on the left and a total of 4 oxygens on the right. A coefficient of 2 in front of oxygen on the left balances the equation.
3x-12 ≥7x+4
Subtract 3x from both sides
-12 ≥4x+4
Subtract 4 from both sides
-16 ≥4x
Divide each side by 4
-4 ≥x
From point 4, you use a closed circle and the arrow is facing towards 0
Answer:
70
Step-by-step explanation:
because it stand itself
