Marco solves the equation 4sin(3x) + 0.25 ≤ 2sin(3x) − 0.3 by graphing y = 2sin(3x) and y = −0.55. he then locates the intervals

Question

2 years ago

12

on which 2sin(3x) is less than or equal to −0.55. is marco's solution method valid? explain.

2 answers:

raketka [301] · Answer 1 · 2022-03-27T00:17:39+03:00

8 0

Help me with this please

ch4aika [34] · Answer 2 · 2022-03-27T01:22:30+03:00

Answer:

yes, Marco's method is correct.

The given inequality can be rewritten using the properties of inequality.

You can subtract 2sin(3x) and 0.25 from both sides of the inequality.

Subtracting preserves the direction of the inequality, so 2sin(3x) would be less than or equal to –0.55.

Step-by-step explanation: