Answer:
20 cm is the side of the bigger square.
Step-by-step explanation:
Let one square's side be x,
Then another squares side will be ( x + 5 )
- <em>Formula for square's area: side²</em>
Total area:
- x² + ( x + 5 )² = 625
- x² + x² + 10x + 25 = 625
- 2x² + 10 x + 25 - 625 = 0
- 2x² + 10x - 600 = 0
- 2(x² + 5x - 300) = 0
- x² + 5x - 300 = 0
- x² + 20x - 15x - 300 = 0
- x(x + 20) -15(x + 20) =0
- x = -20, 15
- x = 15
So one square's side is 15 cm
Then the bigger square has:
f(x) as a linear equation:
gradient = (12-4)/(4-2) = 4
y - 4 = 4(x - 2)
y = 4x - 4
Therefore f(x) = 4x - 4
g(x) = 10x - 4
Since it already started at 10 and it increases by one every level (x):
h(x) = x + 10
Therefore, since g(x) has the largest gradient (10x), it has the largest slope
Your answer is C because 3 x 3 is 9 and 9 + 1 is 10 and 10 + 8 is 18
700 x .3 = 210
700 + 210 = 910
-5(x - 6) = 10x Given
(-5)(x) + (-5)(-6) = 10x
-5x + 30 = 10x Distributive property
-5x + 5x + 30 = 10x + 5x
30 = 15x Addition property of equality
30 : 15 = 15x : 15
2 = x Division property of equality
