Mathematics: Simplify the expression. write your answer as a complex number. 2 times the square root of 25 plus the square root of negative 16 10 + 4i 10 − 4i 10 + 8i 10 − 8i

Simplify the expression. write your answer as

Ответ:

brusawerin5969

03.01.2022

Mathematics

10 + 4i

Step-by-step explanation:

$\begin{array}{rcl}2\sqrt{25} + \sqrt{-16} & = & 2 \times 5 + \sqrt{(-1)(16)}\\& = & \mathbf{10 + 4i}\\\end{array}$

0,0(0 оценок)

Ответ:

puppycity78

03.01.2022

Mathematics

A. 10+4i

Step-by-step explanation:

We are asked to simplify the given expression $2\times \sqrt{25}+\sqrt{-16}$ .

We will use imaginary unit 'i' to solve our given problem.

Write 25 as square of 5:

$2\times \sqrt{5^2}+\sqrt{-16}$

$2\times 5+\sqrt{-16}$

$10+\sqrt{-16}$

$10+\sqrt{-1\times 16}$

Substitute i^2=-1 in the expression:

$10+\sqrt{i^2\times 16}$

Write 16 as square of 4:

$10+\sqrt{i^2\times 4^2}$

10+4i

Therefore, the simplified form of our given expression would be 10+4i .

0,0(0 оценок)

Ответ:

caarolin9

05.04.2022

Mathematics

It depends on certain factors

Step-by-step explanation:

If you're wearing shoes and heavy clothing/accessories at the doctors office while stepping on the scale. That could add on as weight. Or either scale (most likely the doctors scale) could pick up your weight more accurately than the other. This depends on the age of the scale or if the scale is electric or not.

0,0(0 оценок)

Simplify the expression. write your answer as a complex number. 2 times the square root of 25 plus the square root of negative 16 10 + 4i 10 − 4i 10 + 8i 10 − 8i

Ответ:

Ответ:

Ответ:

Ask your question to the AI advisor

More tips

Answers on questions: Mathematics

Ask an AI advisor a question