49 is a square given by 7x7 as is clear in your equation, 4 is a square given by 4x4 the operator given is - ( minus) you have two squares, and a difference sign a^2 - b^2 = (a-b)(a+b) 7^2 -2^2 = (7-2)(7+2) = (5)(9) = 45 it is the diffeernce of two squares
Answer:
Step-by-step explanation:
m = Masa del bloque = 18 kg
F = Fuerza en el bloque = 300 N
= Coeficiente de fricción = 0.6
El equilibrio de fuerzas del sistema viene dado por
La aceleración del bloque es .
Answer:
(a + b) and (a - b)
Answer:
-6.21 x 10^5
Step-by-step explanation:
The negative only comes when the numbers are in the decimal to right such as 0.1 when its on the left side it just mean positive power such as 6.0= a positive, negative power = 0.6 count how many numbers there are (6) then get the last number as the whole number and the rest are behind (-6.21) count all the numbers besides the last number (6) now that is your power so you get -6.21 x 10^5
Answer: x2 - 2x + 4 - 12/(x + 2)
Step-by-step explanation:
