To do with COS, TAN and SIN

Step-by-step explanation:

The answers are BC = 6.3/ cos71 = 19.351 and BC = 6.3 / sin 19 = 19.351

Step-by-step explanation:

cosB =

or, cos 71 =

or,BC =

= 6.3/ cos71 = 19.351

Here, ∠C = 180 - (90 + 71 ) = 19

sin19 =

or, sin 19 = AB/ BC

or, BC = AB /sin 19

= 6.3 / sin 19 = 19.351

We cannot find BC in terms of tan as tan means perpendicular/ hypotenuse. BC is the hypotenuse and that is got eliminated.

Here is the explanation.

3 qrs + 3/2 xy hope this : /

step-by-step explanation:

answer: 8

step-by-step explanation: if you add the possibilities 5 different flavor and 3 different sizes 5+3=8