Circumference = 2×3.14×r
3.14 is pie and r is the radius.
To find the radius you divide the diameter by 2.
19 ÷ 2 = 9.5
2×3.14×9.5 = 59.66
Multiply 59.66 by 6 because ther are 6 pennies.
59.66 × 6 = 357.96 mm.

can also be written as 2i
where i = √-1

Rationalizing denominator,
Pretty sure it is
shift 1 left
i might be wrong
Answer:
1)a
2)d
3)b
4)c
Step-by-step explanation:
Answer:
You add all them then divided 4 i think