X=15
EXPLANATION:
5x+4+5x+11+x=180
11x+15=180
-15 -15
11x=165
— ——
11 11
x=15
Answer:
y = 2.5x + 0
Step-by-step explanation:
Use the slope formula and slope-intercept form y = mx + b to find the equation.
You will get r= 21/12 but you have to simplify to get R=7/4 or R=1.75
Formula: A = pq/2
p = d1
q = d2
Substitute with the given values and solve.
A = 12*14/2
A = 168/2
A = 84
Therefore, the ansewr is 84in²
Best of Luck!