Answer:
x=-1/2
Step-by-step explanation:
Given:
8x^3+12x^2+6x+1=0
Making factors of the given polynomial by using cube formula, given as
(a + b)^3 = a^3 + 3a^2b + 3ab^2 + b^3
Re-writting the given polynomial:
(2^3.x^3) + 3(2^2.x^2)(1)+3(2x)(1) + (1^3)=0
Hence (2^3.x^3) + 3(2^2.x^2)(1)+3(2x)(1) + (1^3) can be written as (2x+1)^3
(2x+1)^3= 0
2x+1= 0
2x= -1
x= -1/2 !
Answer is C. y = 7x
x = 5 y = 7(5) = 35
Since it is linear, we can find a linear equation to represent the relationship. We have two points (3,6) and (11,15). The slope is 9/8. So we have an equation:
y = (9/8)x + b
Plug in (3,6) to find out that b = 21/8
So our equation that represents this linear relationship is:
y = (9/8)x + 21/8
Now to figure out what "p" is, we plug in x = -1, and we get p = 1.5
To figure out what "q" is, we plug in x = 7, and we get q = 10.5
Therefore the sum of p and q:
1.5 + 10.5 = 12
Answer:
216
Step-by-step explanation:
Volume of a cube is x^3 - 6*6*6 is 216
B. 7.5 is the correct answer
