Answer:
Step-by-step explanation:
Hello, we know that the z complex solutions of

are
1, i, -1, -i
so, the solutions of
are
2, 2i, -2, -2i
Thank you
Answer:

Step-by-step explanation:
We have:

To solve, we will isolate the x variable. Therefore, subtract 7 from both sides:

Divide both sides by 2:

Take the square root of both sides. Since we’re taking an event root, we will need plus/minus. Therefore:

Therefore, our solutions are:

Answer:
units
Step-by-step explanation:
(4, 4) & (9, 3)
To find the distance of two points, we use the distance formula:

Let's plug in what we know.

Evaluate the parentheses.

Evaluate the exponents.

Add.

Evaluate the square root.
or
units
Round to the nearest 10th.
units
Hope this helps!
To calculate<span> the </span>percentage<span> increase, work out the difference (increase) between the two numbers you are comparing. Then divide the increase by the original number and multiply the answer by 100.</span>
Answer:
$4/hour
Step-by-step explanation:
From 7:30 am to 10:00 am it's 2.5 hours.
10 * 2.5 hours = 25 hours
He worked a total of 25 hours.
$100/(25 hours) = $4/hour