Hello from MrBillDoesMath!
Answer:
Choice A, 1/4
Discussion:
Consider the perfect square
(x + a)^2 = x^2 + (2a)x + a^2
The constant term (a^2) equals 1/2 the coefficient of x (i.e. 2a), squared.
Let's apply this idea to x^2 + x
x^2 + x = => as 2 * 1/2 = 1
x^2 + ( 2 * 1/2)x =
( x^2 + (2* 1/2)x + ( 1/2) ^2 ) - (1/2) ^2 =
as constant term to add is 1/2 coefficient of x (that is, 1/2) and
(1/2)^2 - (1/2)^2 = 0
(x + 1/2) ^ 2 - (1/2)^2
In other words add the constant (1/2)^2 = 1/4, which is Choice A.
Thank you,
MrB
Answer:
She paid $77 in total for all 3 haircuts
Step-by-step explanation:
Add 15+23+32=70 then divide 70 by 100 that equals .7 then multiply that by 10 it equals 7 and add the original amount of 70 to 7 and it equals 77.
Answer:
z= 27/4
Step-by-step explanation:
I think the internet affect kids today because we spend to much time on our phones and not pay attention most of the time
