Answer:
a = - 4
Step-by-step explanation:
Given x = - 2 is a root then f(- 2) = 0
f(x) = x³ + x² + ax - 4, thus
f(- 2) = (- 2)³ + (- 2)² - 2a - 4 = 0, that is
f(- 2) = - 8 + 4 - 2a - 4 = 0, thus
- 8 - 2a = 0 ( add 8 to both sides )
- 2a = 8 ( divide both sides by - 2 )
a = - 4
Answer:
6
Step-by-step explanation:
The mode of a set of data values is the value that appears most often. ^ appers 4 times.
Answer:
search up on google
Step-by-step explanation:
not hard
I think the answer would be <span>A=0.85
B=(1 - 0.15)d
C=85d
D=0.85d</span>
Answer:
The answer is C
Step-by-step explanation:
All of the other answers have the same domain and range for the function.
