Solve to find side C please

c= 18.4

Step-by-step explanation:

Since this is a right triangle, we can use trig functions

cos theta = adj/ hyp

cos theta = a/c

cos 57 = 10/c

Multiply each side by c

c cos 57 =10

Divide each side by cos 57

c = 10/cos 57

c=18.36078459

Rounding to the nearest tenth

c= 18.4

The answer is -2.

Step-by-step explanation:

In order to solve the problem, you need to first set up an equation, with a variable, and solve using inverse operations.  Using context clues from the problem, we know that 'difference' is subtraction, 'times' is multiplication and 'equal' is the equal sign, or total.  So, using the numbers and clues, I can set up the following equation:  8x - 3 = -19.  To solve for 'x' I need to first add 3 to both sides of the equation to get 8x = -16.  Next, I need to divide both sides of the equation by 8 to get x = -2.  Therefor, your final answer is -2.  You can double-check by putting this number into the equation and solving:  8x(-2)  - 3 = 16, or -16 - 3= -19, -19 = -19.