Given sin28.4=.4756, cos28.4=.8796, and tan28.4=.5407 find the cos of 61.6

0.4756

Step-by-step explanation:

The sine of any acute angle is equal to the cosine of its complement. The cosine of any acute angle is equal to the sine of its complement.

Meaning that sin 28.4 = cos 61.6

since 28.4+61.6=90 degree

step-by-step explanation:

so first find out how much each is worth.

quarter= 25 cents

dime= 10 cents

pennies= 1 cent

then multiply each by how much each is worth.

200                     150                   300

x                         x                     x   1

  25                       10              

                                  300

1000                     1500

+                          

4000                                      

5000                                  

then count 2 from the back and add a period.

$50.00

$15.00

$3.00

and then add them

  $50.00

+

  $15.00

+

    $3.00

$68.00

so sunghee has $68.00

read more on -

answer: -8.2562234e+13