Answer:

Step-by-step explanation:
Assume a pentagon has equal length where a be the side of the pentagon and r be the apothem of the pentagon.
Given:
Sides of pentagon 
apothem of pentagon 
The area of the pentagon formula is given below.

Where b = length of the base or side
And h = height of apothem
Now, we substitute side and apothem length in above formula.


Therefore, the area of the pentagon is 
The larger the number is in front of the negative the smaller the number is. Fir example -90 is smaller than -5.
Answer:
43.0°
Step-by-step explanation:
cos∅=adj/hyp
cos∅=60/82
∅=cos-1 60/82
∅=cos-1 0.731707317073
∅=42.97028393174°
Round: 43.0°
The slope-intercept form of the equation of a straight line is y=mx+b, where m is the slope and b is the y-coordinate of the y-intercept.
If the given slope is -1/2, then this equation becomes y = (-1/2)x + b.
You do not say that b=1.
But if we let b=1, then the equation becomes y = (-1/2)x + 1.
Answer:

Step-by-step explanation:
Bring the five to the other side of the equation.

Add the double negatives.

Divide. (flip the sign on account of dividing by a negative number.)
