1:

\(\sqrt{-144}\)

2:

\(\sqrt{144} \cdot \sqrt{-1}\)

Result \(= 12i\)

Question

asked 2020-11-23

0 - 10 =

asked 2021-01-24

Write each complex number in standard form. \(2(\cos 30^{\circ} + i \sin 30^{\circ})\)

asked 2021-01-31

To find the equation \(4\sqrt{8}\times\sqrt{10}=?\)

asked 2021-04-15

A car initially traveling eastward turns north by traveling in a circular path at uniform speed as in the figure below. The length of the arc ABC is 235 m, and the car completes the turn in 33.0 s. (Enter only the answers in the input boxes separately given.)

(a) What is the acceleration when the car is at B located at an angle of 35.0°? Express your answer in terms of the unit vectors \(\displaystyle\hat{{{i}}}\) and \(\displaystyle\hat{{{j}}}\).

1. (Enter in box 1) \(\displaystyle\frac{{m}}{{s}^{{2}}}\hat{{{i}}}+{\left({E}{n}{t}{e}{r}\in{b}\otimes{2}\right)}{P}{S}{K}\frac{{m}}{{s}^{{2}}}\hat{{{j}}}\)

(b) Determine the car's average speed.

3. ( Enter in box 3) m/s

(c) Determine its average acceleration during the 33.0-s interval.

4. ( Enter in box 4) \(\displaystyle\frac{{m}}{{s}^{{2}}}\hat{{{i}}}+\)

5. ( Enter in box 5) \(\displaystyle\frac{{m}}{{s}^{{2}}}\hat{{{j}}}\)

(a) What is the acceleration when the car is at B located at an angle of 35.0°? Express your answer in terms of the unit vectors \(\displaystyle\hat{{{i}}}\) and \(\displaystyle\hat{{{j}}}\).

1. (Enter in box 1) \(\displaystyle\frac{{m}}{{s}^{{2}}}\hat{{{i}}}+{\left({E}{n}{t}{e}{r}\in{b}\otimes{2}\right)}{P}{S}{K}\frac{{m}}{{s}^{{2}}}\hat{{{j}}}\)

(b) Determine the car's average speed.

3. ( Enter in box 3) m/s

(c) Determine its average acceleration during the 33.0-s interval.

4. ( Enter in box 4) \(\displaystyle\frac{{m}}{{s}^{{2}}}\hat{{{i}}}+\)

5. ( Enter in box 5) \(\displaystyle\frac{{m}}{{s}^{{2}}}\hat{{{j}}}\)

asked 2021-02-01

\((−5)\times \cdots \times (−5) 17 times\)

asked 2020-11-14

1. The solutions of \(|u| < c\) are the numbers that satisfy\( -c < u < c\).

2. The solutions of \(|u| > c\) are the numbers that satisfy\( u < -c\ or\ u < c\).

These rules are valid if \(<\) is replaced be \(\displaystyle\le\) and \(>\) is replaced by \(\displaystyle\ge\)

asked 2021-03-11

asked 2020-11-05

An eighth-grade class rolls a number cube with faces labeled 1 through 6.

The results of 50 rolls are recorded in the table below.

Find the relative frequency that a number less than 4 is rolled.

\(\begin{array}{|c|c|}\hline \text{Outcome} & 11 & 22 & 33 & 44 & 55 & 66 \\ \hline \text{Frequency} & 66 & 44 & 88 & 1212 & 1010 & 1010 \\ \hline \end{array}\)

A number less than 4 was rolled \(\times ?\).

The number cube was rolled \(\times ?\).

The relative frequency of rolling a number less than 4 is \(?\%\).

asked 2021-02-14

asked 2021-01-31