If sin (x) =2/5 and tan(x) > 0, what is sin(2x)?

sin2x =

Step-by-step explanation:

Given sinx = =

Then the third side, the adjacent is found using Pythagoras' identity, that is

adj² + opp² = hyp²

adj² + 2² = 5²

adj² + 4 = 25 ( subtract 4 from both sides )

adj² = 21 ( take the square root of both sides )

adj = , then

cosx = =

Using the double angle identity

sin2x = 2sinxcosx

         = 2 × ×

         =

the answer is 200

step-by-step explanation:

the way the question is worded, it seems to imply the $264 interest is simple interest, not compound interest.

the simple interest for 2 years is $264; the simple interest for 1 year is $132.

$132 interest on a $600 investment means an interest rate of (132/600)*100 = 22%.

the value of $200 at 22% interest compounded annually for three years is

200%281.22%29%5e3

the amount of interest is that value, minus the original $200.

ian gone lie this got me confused

step-by-step explanation: