Use your fingers.
Hold down the first finger on your left hand, nine fingers remain up. The answer is 9
For two hold down the second finger on your left hand. On the left is one finger standing, and on the right are 8 fingers standing. The answer is 18
This pattern works for everything up to ten. Then you remember 9 x 11 is 99. And 9 x 12 is 108
Answer:
Step-by-step explanation:
Given expression:
To solve for to nearest tenth.
Solution:
We have:
In order to solve for we will tan inverse tan on both sides in order to isolate .
[ Since ]
We will round to nearest tenth. So,
(Answer)