Answer:
x^4 - 81 = 0
(x² - 9)(x² + 9) = 0
Notice that the first of these is itself a difference of two squares:
(x - 3)(x + 3)(x² + 9) = 0
So the solutions are x = 3, x = -3, x = 3i, x = -3i
Answer:
(B) 4y = 3x-2
Step-by-step explanation:
Divide by the coefficient of y to see the slope. It will be the resulting coefficient of x. Only choices B and D match requirements.
Check to see which equation is satisfied by the given point:
B: 4(1) = 3(2) -2 . . . . true
D: 4(1) = 3(2) +5 . . . .false
The appropriate equation is ...
4y = 3x-2
The correct answer for the exercise shown above is:
zero (0)
The explanation is shown below:
1. You have the following expression given in the problem above:
7/6a
2. By definition, <span>the nonpermissible replacement for a is the value that make the denominator equal to zero.
3. Keeping this on mind, you have:
7/6a=7/6(0)=7/0
Therefore, as you can see, the answer is: zero (a=0).
</span>
Answers:
1)
Mean = $349.2
Median = $352.5
Range = $210
2)
$499.90
3)
$355
I have attached a photo of the work written for this question:
Answer: 27%
Step-by-step explanation:
Subtract 66% from 93%
= 93% - 66%
=27%
