The first answer is 3, the second one is 1, & the third one is (-8,4)
The answer is A, square root of 27=5.196
A^2 - ab + b^2
This is the factoring formula
(2,5) (3,10) (1,0) (0, -5)
Hi there!
Let's start by replacing "a number" by the letter "x" so that we can do an equation and isolate "x" to find your answer :
(x -
) +
= -7
subtract
on each side of the equation
x -
= -8.25
add
on each side of the equation
x = -7.5
-7.5 - 3/4 = -8.25
-8.25 + 5/4 = <u>-7</u>
So your answer is : Three-fourths was subtracted from -7.5, and then 5/4 was added to the result. The sum was -7.
There you go! I really hope this helped, if there's anything just let me know! :)