Answer:
61
Step-by-step explanation:
Step 1: Define
8y² - y - 8
y = 3
Step 2: Substitute and Evaluate
8(3)² - 3 - 8
8(9) - 3 - 8
72 - 11
61
2 ways:
1. solve for x
2. simplify the 10 so it can add to the 4/x
if you use 1. solve for x
8/x=4/x+10
subtract 4/x from both sides
4/x=10
multiply both sides by x
4=10x
divide both side sby 10
0.4=x
proportion is 8/0.4=4/0.4+10
if you use 2. make 10 addable to 4/x
4/x+10/1
multiply 10/1 by x/x
4/x+10x/x=(4+10x)/x
8/x=(4+10x)/x
multiply both sides by x to clear fraciton
8=4+10x
subtract 4
4=10x
divide 10
0.4=x
Answer:
Yeah he call me patty cake cause the way that ace shake
Step-by-step explanation:
Answer:
|x| < √7
Step-by-step explanation:
The product of the roots of the given quadratic equation is 2/a, so the other root (the one not given) is 2/(7a). It will be negative, since "a" is negative.
The roots of ax^2 +bx +2 = 0 are the values of x^2 that satisfy ax^4 +bx^2 +2 = 0. That is, roots of the latter equation will be the square root of the roots of the former equation.
We know that two of the zeros of the quartic are ±√7, and the other two are complex, as they are the square roots of a negative number. So, the graph of the quartic opens downward (because a < 0), and has real zeros at x=±√7.
The solution to the inequality must be ...
-√7 < x < √7
_____
The graph shows an example of the quadratic (green) and quartic (black). The ripple in the quartic changes amplitude with different values of "a", but the locations of the zeros do not change.
Answer:
A = 1/3b
Step-by-step explanation:
Divide each side by 12b to isolate the variable "a". This leaves a = 4/12b. This can be simplified to 1/3b.