Which measurements could create more than one triangle? A. A right triangle with acute angles measuring 45° and 45°
B. A triangle with sides measuring 15 inches, 20 inches, and 25
inches
C. A triangle with sides measuring 20 cm, 9 cm, and 10 cm
D. A triangle with sides measuring 10 cm and 20 cm and an included
angle measuring 65°
SUBMIT

x^2 + 81

we can factor this using difference of square binomials.

rewrite the equation:

x^2 - (-81)

factor:

(a^2 - b^2) = (√a^2 + √b^2)(√a^2 - √b^2)

(x^2 - (-81) = (x + √-81)(x - √-81)

we can remove the - from under the radical by multiplying it by i.

(x^2 - (-81) = (x + i√81)(x - i√81)

(x^2 - (-81) = (x + 9i)(x - 9i)

we can check our answer by using foil:

x^2 - 9ix + 9ix - 81i^2

x^2 - 81^2

i^2 = -1

x^2 + 81

w represents the number of water bottles.

answer is d.

l.a. = 791.7 ft2;  

s.a. = 1,244.1 ft2

hope you got it : d