If you would like to solve the equation 2 * x^2 + 8 * x = x^2 - 16, you can calculate this using the following steps:
<span>2 * x^2 + 8 * x = x^2 - 16
</span><span>2 * x^2 - x^2 + 8 * x + 16 = 0
</span>x^2 + 8 * x + 16 = 0
(x + 4) * (x + 4) = 0
x = - 4
The correct result would be x = - 4.
<h3>
Answer: C. Empty set</h3>
Explanation:
The first set {x | x < -3} means we're talking about numbers smaller than -3. This includes -4, -5, -6, etc
The second set {x | x > 5} means we're talking about numbers larger than 5. So things like 6,7,8,...
Combining both at the same time, we want to find a number that is both smaller than -3 and larger than 5. This is impossible as no such number exists. You can pick one or the other, but not both.
There are no solutions. Since there are no solutions, the solution set is the empty set.
Answer:
(2.8-3.5)/3.5=-.2 (100)=20%
Percent error is 20%
formula to fin percent error is ((approx-exact)/exact)(100)
Step-by-step explanation:
So the first thing we need to do is multiply 3*-5, since order of operations dictates it (PEMDAS)
Now, whenever we see a minus negative number, we can think of it as adding a positive number
Now we just add them together
23 is the answer
