A: 55
b: 50
c: 100
the sum of all the angles of a triangle must equal 180
Answer:
x = 30 I'm sure hope this helps
Answer:

Step-by-step explanation:
we know that
To find out how many weeks it will take to repair this stretch of road, divide the total length of the road by the workers' rate
so

Convert mixed number to an improper fraction


substitute

Convert to mixed number

Answer:
PD = 12
Step-by-step explanation:
Using the tangent ratio in right Δ PDW and the exact value
tan30° =
, then
tan30° =
=
=
=
( cross- multiply )
PD = 12
Answer:
A and C
Step-by-step explanation:
5) logx+log(x+9)=2
log(x(x+9))=2, log(x^2+9x)=2
6) log(x^2+9x)=2
(x^2+9x)=36 or 6^2