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valkas [14]
3 years ago
10

5 ( 3 squared x) + 9 ( 3 squared x)

Mathematics
1 answer:
yulyashka [42]3 years ago
5 0

Answer:

42x^2

Step-by-step explanation:

5(3x^{2} )+9(3x^2)\\\\=(5+9)(3x^2)\\\\=14(3x^2)\\\\=42x^2

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A building makes a 90° angle with the ground. A ladder leans against the building, making a 110° exterior angle with the ground.
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<u>Answer:</u>

A building makes a 90^{\circ} angle with the ground .The two interior angles are 70^{\circ} and 20^{\circ}

<u>Solution: </u>

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