Answer:
44 cm
Step-by-step explanation:
The circumference (C) of a circle is calculated using the formula
C = 2πr ← where r is the radius
here r = 7, hence
C = 2 ×π × 7 = 14π ≈ 44 cm ( to nearest whole number )
Answer:

Step-by-step explanation:
Find common difference from subtracting any term in the sequence with the previous term.

Apply nth term formula.





Answer:
-50y+(-80)
Step-by-step explanation:
The formula is E= kQ/ d^2
k is 9x10^9
i changed 15 cm to 0.15 m
=> 9x10^9 x 12 OVER (0.15)^2
the answer is 4.8x10^12 N/C
but this is the electric field.
to find electric field STRENGTH, it’s E= F/q and you did not give a value for the force
Answer:
42/7 = 6.00
6.00 x 7 = 42
6.00 is fraction for 42.
Step-by-step explanation: