Answer:
Option A is correct that is 
Step-by-step explanation:
We have been given a formula 
We will put values of n in
when n=2 we get
when n=3
Therefore, Option A is correct that is
Step-by-step explanation:
"product" means multiplication. the same as "times".
so,
135 = r×9
Answer:
She is right, it won´t always work.
Step-by-step explanation:
Hi, in the examples this tactic works because the first numbers, when multiplied, don´t equal 10 (7x6=42 and 8x7=56). If you multiply both numbers and give you 10, you will have to add another zero to the final number and the trick would crash.
Example:
200 x 500 = 100,000
(2 Zeros) (2 zeros) (5 zeros)
Best of luck.
2 * (2*3.14*R) =
2 * (2*3.14*70) = 879,2
so the answer is about 879,2 meters
Answer:
I think it is 14
Step-by-step explanation:
f(-7)
-7(a)=7a
-7a=7a
+7
a= 14
