Answer:
(2a-1)^2
Step-by-step explanation:
Rewrite 4a^2 as (2a)^2
.
(2a)^2−4a+1
Rewrite 1
as 12
.
(2a)^2−4a+1^2
Check the middle term by multiplying 2ab
and compare this result with the middle term in the original expression.
2ab=2⋅(2a)⋅−1
Simplify.
2ab=−4a
Factor using the perfect square trinomial rule a^2−2ab+b^2=(a−b)^2
, where a=2a and b=−1
.
(2a−1)2
please brainly
Answer:
74km
Step-by-step explanation:
7 + 7 = 14
15 + 12 = 27
5 + 8 = 13
9 + 11 = 20
14 + 27 = 41
41 + 13 = 54
54 + 20 = 74
<span><span>If we have a point, (x1;y1)<span> and a slope, </span>m, here's the formula we </span><span>use to find the equation of a line: y - y1 =m( x - x1); where x1 = -2 ; y1 = 4 ; m = 5.
Then, y-4 = 5(x+2);
Finally, y-4 = 5x + 10 / +4
y = 5x + 14 ;
</span></span>
So there are 4 slots and 4 options for the first slot, 3 for the second slot, and so on. There is a total of 24 options. Since you want a specific order, it's 1/24. (the option you want/total options)