Answer:
3
Step-by-step explanation:
5 is greater than 2 and two is negative so the answer is positive
Answer:
2/3
Step-by-step explanation:
17/21-1/7
17/21-3/21
14/21=2/3
<u>answer:</u> 
<u>work:</u>
| distribute the negative into the parentheses, which means multiply into the parentheses.
| combine like terms
| final answer
correct me if anything is wrong, otherwise hope this helps! ❤ from peachimin
Problem 1) The triangles are similar because of the AA (angle angle) Similarity Theorem. The first A is the pair of congruent 39 degree angles. The second pair is unmarked, but look at where the triangles meet. They form a pair of vertical angles which are congruent. So we have two pairs of congruent angles allowing us to use the AA Similarity Theorem.
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Problem 2) We can use the SAS (Side Angle Side) Similarity Theorem to prove that these two triangles are similar. The angles are congruent. They are both 29 degrees. So that checks off the "A" portion of SAS. Then notice how the bottom sides are 32 and 64 for the small and large triangle respectively. They form the ratio 32/64 = 1/2, ie the smaller triangle's side is 1/2 as long as the longer counter part. Similarly, 8/16 = 1/2 as well. The ratio is constant at 1/2. This allows us to use the other "S" portions of SAS.
Answer:
D.
Step-by-step explanation:
It is the number of square units contained in the interior.
Area is 2 dimensional.
