Answer: 37) 170
Step-by-step explanation:
85 - (-85) = 85 + 85 = 170
In a study of reaction times to a specific stimulus, a psychologist recorded these data (in seconds). Find the variance and stan
1 answer:
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<h2>Hello!</h2>
The answer is:
The correct option is:
A. $0.49
<h2>Why?</h2>From the statement, we know that the iHome is used on average three hours a day, and we are asked to find the cost for a week, so first, we need to calculate the total hours that the iHome is used for, and then, calculate the kilowatt-hour consumption rate.
Now, we must remember that:
So,
Then, calculating the cost, we have:
Hence, we have that the correct option is:
A. $0.49
Have a nice day!
Answer:
-90=(
-18)
-90=-18
Step-by-step explanation:
you need to use quadratic formula and you will find square root a negative ( -9 ), which is an imaginary no.
square root (-9) = 3i