Answer:
f(x) = -4x² - 24x - 38
Step-by-step explanation:
f(x )= -4(x + 3)² – 2
Expand the squared term
f(x) = -4 (x² + 6x + 9) - 2
Distribute the -4
f(x) = (-4x² - 24x - 36) - 2
Combine like terms
f(x) = -4x² - 24x - 38
(original - new)/original * 100%
(48-15)/48 * 100%
33/48 *100%
68.75 % decrease
Answer:
50
Step-by-step explanation:
Set up the equation
12/x = 240/1000
cross multiply
1000(12) = 240(x)
12000 = 240x
divide both sides by 240
x = 50
The answer is 49 because x = 1/7 and 1/7^-2 =49
Answer:
A
Step-by-step explanation:
Given
(3x² - 11x - 4) - (2x² - x - 6)
Distribute both parenthesis, noting the second is distributed by - 1
= 3x² - 11x - 4 - 2x² + x + 6 ← collect like terms
= x² - 10x + 2 ← this is a quadratic with 3 terms, thus trinomial → A
