Answer:
a = 9
Step-by-step explanation:
expand (y - 3)(y² + 3y + 9)
= y³ + 3y² + 9y - 3y² - 9y - 27
compare the coefficients of like terms with
y³ + 3y² + ay - 3y² - ay - 27
ay = 9y and - ay = - 9y ⇒ a = 9
X+52=149 x=97 hope this helped!
Answer:
The answer would be 1/40 I believe. Hope this helps :)
Step-by-step explanation:
The answer is C because that's is a 90 degree angle. So you just subtract 70 from 90.
