You only need an estimate? Great. Think of the necessary material as 6 yards, so ten costumes would take 60 yards. Then think of the fabric on hand as 240 yards, so taking 60 yards away from that would leave [an estimated] 180 yards of fabric.

For an equation, use:

F" = F' - 5.8 C

Where F' is the initial fabric stock, F" is the remaining fabric, and C is the count of costumes.

In exact numbers, the formula works out to:

F" = 238.2 - (5.8 * 10)

F" = 180.2

The estimate was very close.

Good luck.

4 0

3 years ago

Can anybody explain how I answer this question I really don't get trig equations

nasty-shy [4]

SinØ(TanØ+2)=3cosØ -----[pulling like terms out]

for the following steps The easiest 4 me is that I just plug in values between 0° and 180° for Ø and see which will help me to get equal numbers on both sides.

So, for instance if you use Ø=90°, you'll get the following, Sin90(Tan90+2)=3cos90

========> 1(1+2)=3(1) ==> 3=3

so 90° is one of the solutions ur looking for.

hope this was helpful

6 0

3 years ago