Answer:
Mean age = 1271.27
Step-by-step explanation:
No of children = 77
The age at which children first began to combine words = 16.51 months
Mean age = No of children × age at which children first began to combine words
= 77 × 16.51
= 1271.27
Mean age = 1271.27
Answer:
1.
, base is 8 and exponent is 5
2.
, the base is -1 and the exponent is 7
3. -2 *
, the base is a and the exponent is 3
Should be the 2nd and 3rd one
A=9+16=25
B=36+64=100
C=25+144=169
D=64+1600=1681XxXxXx
D is the answer becuase the pathagreiam theirum is