<span>The square root of -16 is an imaginary number and a complex number. Sqrt(-16)=4i. We use the i to indicate that the number is imaginary since there is no number that can be multiplied by itself to get a negative number (a negative times a negative is a positive, and a positive times a positive is also a positive). So the use of i tells you immediately that it's an imaginary number. You can tell the number is complex because it has both a real and an imaginary part and could be written in the form a+bi, where a is a real number and bi is an imaginary number. In this specific case, the real part (a) is 0 and the imaginary part (bi) is 4i.</span>
Answer:
x = 2
Step-by-step explanation:
55-42=13
13 brought up to 14 so it can be divided by 7
14 / 7 = 2
Answer:
Step-by-step explanation:
Given
--- sample
--- degeneration rate
From the findings, we have:
--- tested positive
--- total test
Required
The positive predicted value (PPV)
This is calculated using:
i.e.
Express as percentage
To find the minimum value of n that guarantees an error of no more than 1/30000 in approximating integral 1/x dx from 3 to 4 by the trapezoidal rule with n so the answer to your question is N=71 and i hope you understand my answer.
