Answer:
C. 8
Step-by-step explanation:
d = 8
4 +
Substitute d for 8
4 + 8/2
Simplify
4+4
Simplify
8
P+A=420
P=6A
6A+A=420
7A=420
A=60
P=6(60)
P=360
CHECK:
P+A=420
360+60=420
420=420
12m²n² -8mn +1
[6mn-1]•[ 2mn-1]
[ 6mn•2mn + 6mn•-1 + -1•2mn +-1•-1]
= [ 12 m²n² -6mn -2mn +1]
= [ 12m²n2-8mn+1]
.........
3/2 ..............................
Answer:
x = 12.8
Step-by-step explanation:
i use this calculator to find triangle measurements as long as you know like three values it works
https://www.calculator.net/triangle-calculator.html?vc=90&vx=&vy=10&va=38&vz=&vb=&angleunits=d&x=79&y=19
ik sending a link is hecka sus but you can just look up triangle calculator and it'll pop up