3 years ago

2. Simplify each expression.

Mathematics

1 answer:

deff fn [24]3 years ago

8 0

Answer:

$6n + 3 + 2n = 8n + 3$

$99-9-9 = 81$

$2p + 3p+ 6-p-3 = 4p + 3$

$2.25(14.3m + 6 + 2.7m) = 38.25m + 15.5$

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Given: ∠A is a straight angle. ∠B is a straight angle.

choli [55]

Given: ∠A is a straight angle. ∠B is a straight angle.

We need to Prove: ∠A≅∠B.

We know straight angles are of measure 180°.

So, ∠A and <B both would be of 180°.

It is given that ∠A and ∠B are straight angles. This means that both angles are of 180° because of the the definition of straight angles. Using the definition of equality, m∠A=m∠B . Finally, ∠A≅∠B by definition of congruent. 