The answer would be A. because 30 is how many she did but then h is the variable we are trying to figure out like the h can be any letter it just is there to show that the "person" does not know what the number is. Hope this helped!
Answer:
(2x-3)(2x+1)
Step-by-step explanation:
4x^2 - 4x - 3
we need two numbers that give 12 when multiplied and 4 when subtracted
the numbers are 6 and 2 because 6*2=12 and 6-4=4.
4x^2 - (6-2)x -3
4x^2 -6x +2x -3
take common
2x(2x -3)+1(2x-3)
take (2x-3) as common
(2x-3)(2x*1 + 1*1)
(2x-3)(2x+1)
Answer:
n = -1
Step-by-step explanation:
Use the equation y=mx + b
m (slope) = -2
x (x coordinate) = -4
y (y coordinate) = 7
You are solving for b.
Plug in for the given values:
7 = -2(-4) + b
7 = 8 + b
-1 = b (Minus both sides by 8)
y= -2x -1
Therefore, n = -1
105: 3×5<span>×7
52: 2</span>×2×13 simplified: 2^2<span>×13</span>
