Question

Find the value of x.

Answer 1

Use SoaCaoToa here. Do you know what do to with that?

Answer 2

No I Dont.

Answer 3

x =root 40

Answer 4

\[\sqrt{40}\]

Answer 5

Ok, so you'll want to use sine, cosine, or tangent here.

sin (angle)=opposite/hypotenuse
cos (angle)=adjacent/hypotenuse
tang (angle)=opposite/adjacent

Answer 6

(sorry, it should be SohCahToa)

Answer 7

I dont understand

Answer 8

\[\sin x = \frac{oppositeside}{hypotenuse}\]\[Sin30= \frac{5}{x}\]\[\frac{1}{2}= \frac{5}{x} \]\[x=5 \times 2 =10\] \(x=10 \)

Answer 9

I disagree with amit's choice to use tan. In this case, since we are solving for the hypotenuse, I would use sine instead

Answer 10

why can u plz explain ?

Answer 11

Even if you take tan you'll get the Answer
But its better to take sine as we are calculating opposite side

And you've done a mistake in calculation

Answer 12

In this case, we are solving for the hypotenuse and are given the opposite length and an angle measurement. Thus, by the definition, we should use sine here.

Answer 13

Oh yeah hypotenuse

Answer 14

oh !! yea

Answer 15

actually, diyadia, tan (30) is \[\sqrt{3}/\] so taking the tangent would still give a wrong answer.

Answer 16

no its 1/sqr 3

Answer 17

Tan 30 = 1/sqrt3

Answer 18

bt i have made a mistake i haven't taken square of 5 here so..i'm got wrong ans..

Answer 19

yea, i realized that I just it got messed up. You're right, it is 1/sqrt{3}

Answer 20

bt ans is x=sqr 100 =10 u r right...@ diyadiya

Answer 21

The equation editor and I are still learning to get along...

Answer 22

Lol :)

Answer 23

:)

Answer 24

ok so is the answer x:10 ?

Answer 25

yea any doubt ...

Answer 26

Yep, the answer is 10. Do you understand how we got there?