Find the length of the longest side of the triangle if the perimeter is 23.

a. 3 units
b. 4 units
c. 12 units
d. 18 units

12

Step-by-step explanation:

Add up the given side lengths : 4x + 3x - 5 + 2x + 1 = 9x - 4 and this is equal to 23

9x - 4 = 23 ➡ 9x = 27 ➡ x = 3

The side lengths will be 12, 7, and 4

The longest one would be 12 if we replace x with the value we found.

here you hope this .

step-by-step explanation:

hypotenuse = √(15² + 8²)

=  √(225 +64)

=  √(289) = 17

sin(x) = cos(y) = 8/17

they are identical so long as you are doing the sine of one angle and the cosine of the only other angle that isn't the right angle.