5 mm
12 mm
-)) What is the length of the hypotenuse?

13

Step-by-step explanation:

a^2 + b^2 = c^2

5^2 + 12^2 + c^2

25 + 144 = c^2

169 = c^2  

Square root both sides

c = 13

my answer is$ 12

step-by-step explanation:

because 15 -2=12

answer is 8x+24

area of vanessa's patio = length × width

given, length = (3x² + 5x + 10)

width = (x² - 3x - 1)

area of vanessa's patio = (3x² + 5x + 10)(x² - 3x - 1)

= 3x²(x² - 3x - 1) + 5x(x² - 3x - 1) + 10(x² - 3x - 1)

= 3x⁴ - 9x³ - 3x² + 5x³ - 15x² - 5x + 10x² - 30x - 10

= 3x⁴ - 4x³ - 8x² - 35x - 10

hence, expression of vanessa's patio = (3x⁴ - 4x³ - 8x² - 35x - 10)