Can someone check this, (i do report as needed and i do mark brainliest)? you!

Step-by-step explanation:

cotx/cscx=cosx

Start on the left side.

cos(x)  csc(x)

Apply the reciprocal identity to  csc  (x)  .

cos(x)  1/sin(x)

Simplify  

cos(x)   1/sin(x)cos(x)/sin(x)

Rewrite  cos(x)/sin(x)  as  cot(x)  .

cot(x)

Because the two sides have been shown to be equivalent, the equation is an identity.

cos(x)   csc(x)=cot(x)  is an identity

cot(x)−tan(x)/sin(x)cos(x)=csc^2(x)−sec^2(x)  is an identity

You are correct :)

77

step-by-step explanation:

-3.5 degrees per hour

step-by-step explanation:

find the unit rate:

-12   1/4 degrees           12.25 degrees

= - = -3.5 degrees per hour

      3   1/2 hours               3.5 hours