4 HELP
Type the correct answer in the box.
Simplify this expression:
411 - 3x) + 7x- 8
Σ
a
sin cos tan sin cos'tan ö - Lan
In
csc seccot log log
a 다
1
I
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the answer is b.

step-by-step explanation:

identity property is where 0+whatever number=whatever number. basically 0+ a number.

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!

answer: c.  

step-by-step explanation:

mixtures containing substances that get attracted to magnet can be separated using a magnet. we can separate iron from a mixture of sand and iron, as only iron attracts to the magnet.