<span>Solve the following equation in the real number system. Please show all of your work.
example:
x³-6x²-10x+12=0
...
f(x)=x³-6x²-10x+12
A graphing calculator will show that there is one zero at x=-2
Divide f(x) by (x+2) by long division or synthetic division
(x³-6x²-10x+12)/(x+2)=x^2-8x+6
solve for other two zeros
x^2-8x+6=0
complete the square
(x^2-8x+16)+6-16=0
(x-4)^2=10
x-4=±√10
x=4±√10=7.16 and -.84
ans:
x=-2, -.84 and 7.16</span>
Answer:
-0.1846
Step-by-step explanation:
-5/13 + 1/5 = -0.1846
Adam will have to run 26 miles per week. 30% of 20 is 6. (6+20=26)
Answer:
Yes Anne is correct!
Step-by-step explanation:
18 + 7 = 25.
18 divided by 25 will give us the percentage of how many teens prefers e-books...
18 divided by 25 is 0.72 which is the same as 72%
Hope this helps!!
line given slope = x coefficient = 1/3
Perpendicular slopes must be opposite reciprocals of each other: m1 * m2 = –1
line slope (m) = -3
line equation formula = y = mx + b
y = -3x + b
from the point given
x = 3
y= 3
3 = -9 + b
b = 12
y = -3x + 12
