Answer: 22
Step-by-step explanation:
4 - (-18) = 4 + (+ 18) = 22
Answer:
p =
, q = 9
Step-by-step explanation:
4x² + 12x ( factor out 4 from each term )
= 4(x² + 3x)
Using the method of completing the square
add/subtract ( half the coefficient of the x- term)² to x² + 3x
= 4(x² + 2(
)x +
-
)
= 4(x +
)² - 4 × 
= 4(x +
)² - 9
A regular savings account
Step-by-step explanation:
The equation used to determine the amount of radioactive material left is

We are have the following given quantities:
t = 30 seconds
= 50 grams
HL = 6 seconds
Plugging these into our equation we get


