A construction crew is lengthening a road. The road started with a length of 56 miles, and the crew is adding 4 miles to the road each day. Let I represent the total length of the road (in miles), and let represent the number of days the crew has worked. Write an equation relating to D. Then use
this equation to find the total length of the road after the crew has worked 39 days.

4d+56=L

4(39)+56=L

L=212

Step-by-step explanation:

4 miles per day added on to the already existing 56 miles equals the total length.

When subbing in 39 for the number of days (or variable "d" in the equation), and following the order of operations, you get 212 miles of road total at the end of the 39 days.

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.

step-by-step explanation:

the answer is 128