Answer:
A. is correct so, -5
Step-by-step explanation:
Have a good day.
Answer:
77
Step-by-step explanation:
84/12=7
so
7*11= 77
Can you take the quantity [ x + y ] and square it ?
Can you take the quantity [ x + 2y ] and square it ?
Then you should have no trouble with the square of (.9x + .8y) .
The square of any binomial (expression with 2 terms) is
(square of the first term)
+ (square of the second term)
+ 2 times (product of the terms) .