-- Look at the two numbers.
-- Say to yourself: "Self ! 3.9 is close to 4, and 5.3 is close to 5.
So the product is going to be close to (4 x 5) = 20."
-- Then do the real multiplication.
-- On your paper or your calculator, you see the digits 2 0 6 7 .
-- From your estimate (20), you know that it can't possibly be
2.067 or 206.7 or 2,067. It must be 20.67 .
Answer:
-4/3
Step-by-step explanation:
2/3-2=2/3-6/3=-4/3
Answer:
2 (49x - 15)/3
Step-by-step explanation:
Step-by-step explanation:
4x - 2 = -14
4x = -12
x = -3.
Answer:
pythagurom theorum
Step-by-step explanation:
![a^2 *b^2=c^2](https://tex.z-dn.net/?f=a%5E2%20%2Ab%5E2%3Dc%5E2)