8/x^4
I multiply to get everything out of the Parentheses.
Then a lot more steps
But the answers is 8 over x to the power of 4
Answer:
(d) 2x +y = 8
Step-by-step explanation:
The answer choices are shown in "standard form," so the comparison to the given equation is easier if it is written in standard form. Add 2x to both sides:
2x +y = 5 . . . . . . given equation in standard form
The other equation in a system with no solution will look like this, but will have a different constant:
2x +y = 8 . . . . . . does not intersect the given equation
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<em>Additional comment</em>
All of the other equations shown will intersect the given equation. One way to show this is to use the given equation to substitute for y in the answer choices:
a: 2x -(-2x+5) = 8 ⇒ 6x -5 = 8 . . . one solution: x=13/6
b: x +2(-2x+5) = 8 ⇒ -3x +10 = 8 . . . one solution: x=2/3
c: x -2(-2x+5) = 8 ⇒ 5x -10 = 8 . . . one solution: x=18/5
d: 2x +(-2x+5) = 8 ⇒ 5 = 8 . . . no solution
Answer:
B
Step-by-step explanation:
The Pythagorean theorem only applies to right triangles, and B is the only right triangle, this is shown by B having a box around one of its angles, instead of an arc.
There are an infinite number of decimals between 5.1 and 5.2, 5.11,5.11111111111111.
General form:
ax² + bx + c = 0
If the leading coefficient "a" is negative the parabola opens downward.
