Someone please help! trig identities. show work too bc i don’t understand

120/169

Step-by-step explanation:

one could use a calculator to find the inverse sine of 5/13 = 22.61986494804042617294901087668...° then double it and take the sine to get 0.71005917159763313609467455621302...

OR

cosθ = √(1 - sin²θ) = √(1 - 25/169) = √(144/169) = 12/13

then use the double angle identity

sin(2θ) = 2sinθcosθ = 2(5/13)(12/13) = 120/169

which is approximated by our calculator result.

1) c 2143.6 cm

2) c 113.0 m

3) a 33.5 ft

4)   d 2 cm

5) c 20 mm

6) 180 in

7) d 120 ft

i think it's ф or x=6,-6

step-by-step explanation:

-x^2=-36

x^2=-36

ф

or

if you mean by : -(x^2)=-36

it'll be: x^2=36

x=6,x=-6

hope it'll ! have a good day!

you for asking!