13 x 12 = 156 in<span>2 Hope I could help :)</span>
Answer:
89 decimeters I THINK...
Step-by-step explanation:
1 m → 10 dm
8.9 m → L(dm)
Solve the above proportion to obtain the length L in decimeters:
L(dm) = 8.9 m × 10 dm
L(dm) = 89 dm
The final result is:
8.9 m → 89 dm
<span>Point D cannot be the orthocenter because the orthocenter of an obtuse triangle is located outside the triangle.
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Simplifying
2x + 9 + -10 = -5
Reorder the terms:
9 + -10 + 2x = -5
Combine like terms: 9 + -10 = -1
-1 + 2x = -5
Solving
-1 + 2x = -5
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '1' to each side of the equation.
-1 + 1 + 2x = -5 + 1
Combine like terms: -1 + 1 = 0
0 + 2x = -5 + 1
2x = -5 + 1
Combine like terms: -5 + 1 = -4
2x = -4
Divide each side by '2'.
x = -2
Simplifying
x = -2
I hope it helps you