Find the value of x. Round the length to the nearest tenth.

Question

Find the value of x.  Round the length to the nearest tenth.

anonymous · Answer

attachment

anonymous · Answer

145

anonymous · Answer

Yeah @Directrix

anonymous · Answer

Yeah!

directrix · Answer

Which trig function is opposite leg over hypotenuse? @HeyImKae

anonymous · Answer

It's sin, right?!

directrix · Answer

sin(35 degrees) = x/15

directrix · Answer

x = 8.6205 approx ? Yes or no?

anonymous · Answer

Yes! That's what I got

anonymous · Answer

So my answer is going to be x = 9 because you can round it up?

directrix · Answer

Great. @zakrocks007 dropped a bad answer on us. Beware answers with no supporting work.

anonymous · Answer

Yeah, I don't usually use people's answers who don't help me solve it lol, I'd rather have someone walk me through the steps and learn something like you're doing instead of just using 145 and getting a bad grade!

directrix · Answer

The 6 in 8.6205 is greater than 5 so round to the next integer of 9 if the instructions say go to the next integer.

anonymous · Answer

Well it says to round the length to the nearest tenth

directrix · Answer

Oh, no, then 9 is not correct.

directrix · Answer

8.6205 would, to the nearest tenth, be 8.6 because the 2 in the hundredths place is smaller than 5.

Is 8.7 an option? If so, we may need to recalculate with more digits of sine of 35 degrees.

directrix · Answer

If those other problems we did were round to the nearest tenth problems, we may have to go back and check them.

anonymous · Answer

I think 8.7 is an option, and the other two weren't round to the nearest tenth! :)

directrix · Answer

Okay.

anonymous · Answer

So I would say 8.7?!

directrix · Answer

8.6205, to the nearest tenth, is 8.6. Choose 8.6. 

But, if 8.6 AND 8.7 are given as answer options, we will need to crank out the problem again with more digits of sine of 35 degrees

anonymous · Answer

Well there aren't options, it's one of the questions where you put in your own answer, if that makes sense! It's not multiple choice

directrix · Answer

Hold on. I'll run more digits of sin 35.

directrix · Answer

0.57357643635 = x/15

x = 15*0.57357643635

x = 8.60364654525

directrix · Answer

x = 8.6    0364654525

8.6

directrix · Answer

Those questions where you give your own answer are called "free response" questions. The response is open-ended.

anonymous · Answer

Ok! :D thank you!! Can you help with one more?! It's my last one :)