Solve a triangle when a= 27.3b = 55.9°, and a = 8.6.
there is a 40% chance that the randomly selected child will have a speaking part.
distribute parenthesis and collect like terms, noting that the second parenthesis is distributed by - 1
(4x² - 8xy +2y²) - (9x² - 4xy - 7y²)
= 4x² - 8xy + 2y² - 9x² + 4xy + 7y² ← collect like terms
= (4x² - 9x²) + (- 8xy + 4xy) + (2y² + 7y²)
= - 5x² - 4xy + 9y² → b
#4 x =
# 5 x = 46.648
+ 36 = 64
= 64 - 36
x = 2
solution for #5 is similar
solve the left side triangle then use that value to solve the triangle on the right.