Let's break down the math expressions step by step to determine if the statements are correct:

1. Evaluate \((-3) \times 10\):
\[
(-3) \times 10 = -30
\]

2. Evaluate \((-5)(-3) \times 10\):
- First, calculate \((-5)(-3)\):
\[
(-5) \times (-3) = 15
\]
- Then, multiply the result by 10:
\[
15 \times 10 = 150
\]

Now let's check the statement \((-3) \times 10 = 6.(-5)\):

On the right side, solve \(6 \times (-5)\):
\[
6 \times (-5) = -30
\]

So, the original statement \((-3) \times 10 = 6.(-5)\) evaluates to \(-30 = -30\), which is true.

However, the second expression's problem seems to be due to a formatting or transcription error, as it repeats left-hand-side expressions without clear separation. Nonetheless, based on the calculations provided and the lack of separation between them, the second part might not match any intended statement.