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Mathematics

2 answers:

Kaylis [27]3 years ago

5 0

You are completely right! Good job.
I will explain why;
A. The question states that the triangles are similar, meaning that all corresponding angles are equal and that all the corresponding sides have the same ration.
It already states the angle of S, which is 102.

B. You know the values of the other angles, and you know the angle sum is 180.
so,
180-102-39=39
Therefore, this is 39.

Varvara68 [4.7K]3 years ago

3 0

Your guesses are correct.

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Which comparison is correct?

r-ruslan [8.4K]

Option B: $4.5 \times 10^{-6}>3.9 \times 10^{-9}$ is the correct answer.

Explanation:

Option A: $7.1 \times 10^{8}>1.2 \times 10^{9}$

Simplifying, we get,

$710000000>1200000000$

Since, the value of $1.2 \times 10^{9}$ is greater than $7.1 \times 10^{8}$ , the comparison $7.1 \times 10^{8}>1.2 \times 10^{9}$ is false.

Hence, Option A is not the correct answer.

Option B: $4.5 \times 10^{-6}>3.9 \times 10^{-9}$

Simplifying, we get,

$0.0000045>0.0000000039$

Since, the value of $4.5 \times 10^{-6}$ is greater than $3.9 \times 10^{-9}$ , the comparison $4.5 \times 10^{-6}>3.9 \times 10^{-9}$ is true.