Answer:
D) is your correct answer
Answer:
z = 0
Step-by-step explanation:
3 (z + 7) = 21
3z + 21 = 21
3z = 0
z = 0
Answer:
x = 15
Step-by-step explanation:
There are 2 triangles. The small triangle CDE has sides that are 8 and 20.
The big triangle CAB has sides 6+8 and 20 + x. Add the 6 and 8 which is 14. Create a proportion and cross multiply, divide, then solve for x.
Using the equation P=a+b+c , you just need to plug in.
4a-2b + 7a-3 + 9a - 4
Combine like terms.
20a-2b-7
There are 12 thousands, so we put that in the thousands place
12,000
now add it to 12 in the thousandths place
0.012
12,000.012