Answer:
4
Step-by-step explanation:
Answer:
2(x+3)(x−5)
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
In Arithmetic sequence , 2nd term = first term + d
3rd term = 2nd term + d
In this given explicit formula, we can find that d =2
an ----> n th term; an-1 -----> n-1 th term
an = an-1 th term + 2
Answer:
10
Step-by-step explanation:
9514 1404 393
Answer:
x = 4
Step-by-step explanation:
Corresponding segments of similar triangles are proportional. Here, the similar triangles are ...
ΔABC ~ ΔADE
so the relationship between the sides is ...
BC/BA = DE/DA . . . . . . we put the unknown value in the numerator
x/4 = 12/(4+8)
x = 4(1) = 4
The length of side x is 4.
