1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anna71 [15]
11 months ago
12

If i- -1, what is the value of ; 3? -1 O i 0 1 0 -

Mathematics
1 answer:
Whitepunk [10]11 months ago
5 0
i=\sqrt[]{-1}\begin{gathered} i^2=(\sqrt[]{-1})^2 \\ i^2=-1 \end{gathered}\begin{gathered} i^3=i^2\times i \\ i^3=-1\times i \\ i^3=-i \end{gathered}

You might be interested in
In this diagram, BAC~EDF. If the area of BAC=15 in2, what is the area of EDF? 4, 5.
lesya692 [45]

Answer:

9.6 square inches.

Step-by-step explanation:

We are given that ΔBAC is similar to ΔEDF, and that the area of ΔBAC is 15 inches. And we want to determine the area of ΔDEF.

First, find the scale factor <em>k</em> from ΔBAC to ΔDEF:

\displaystyle 5 k = 4

Solve for the scale factor <em>k: </em>

<em />\displaystyle k = \frac{4}{5}<em />

<em />

Recall that to scale areas, we square the scale factor.

In other words, since the scale factor for sides from ΔBAC to ΔDEF is 4/5, the scale factor for its area will be (4/5)² or 16/25.

Hence, the area of ΔEDF is:

\displaystyle \Delta EDF = \frac{16}{25}\left(15\right) = 9.6\text{ in}^2

In conclusion, the area of ΔEDF is 9.6 square inches.

5 0
3 years ago
Gavin goes to the market and buys one rectangle shaped board. The length of the board is 16 cm and width is 10 cm. if he wants t
Ira Lisetskai [31]
Check the picture below.

doesn't that make it just a 20 x 14?  well, surely you know what that area is.

8 0
2 years ago
In a certain town there were 235 robberies last year. This year the number of robberies has gone down 33%. How many robberies we
HACTEHA [7]

Answer:

157 is the answer

Step-by-step explanation:

If you go on google and type 235- 33% you get 157.45 and to the nearest whole number is 157 hope that helped.

6 0
3 years ago
Help!!! il give brainlist​
garik1379 [7]
Hours || earning
1 || 20
2 || 40
3 ||60
The rate of change is the slope
Slope is 20
If you were to write this as an equation it would basically be y=20x
5 0
3 years ago
Math help please thanks
Pepsi [2]
For most of these questions, all you would have to do is add the angles together and or subtract the larger angle from the smaller one to find the other angle. So in the first case.

You would add the angles, 26 degrees and 60 degrees to find the angle KLM which is about 90 degrees a right angle, in this case it would be 86 degrees.

Similarly, for the other question, take the larger angle, 145 degrees and subtract 61 degrees to solve for the angle that will also add to give 145 degrees,in this case it would be 84 degrees.

3 0
3 years ago
Other questions:
  • Please help me with these problems​
    10·1 answer
  • And this is the last one
    12·1 answer
  • The ice cream shop has 7 types of toppings available, and you decide to add 4 toppings to your bowl of 5 scoops of ice cream. Ho
    12·1 answer
  • Maritza's car has 16 gallons of gas in the tank. She uses 3/4 of the gas. How many gallons of gas does Maritza use?
    15·2 answers
  • ANSWER ASAP !! what is the solution to the system that represents this scenario , 5x+10y=70 &amp; 8x+8y=64
    13·1 answer
  • 1. Walmart’s stock price started at $70. It went up by $2, then went down by $4. What is the final stock price?
    13·1 answer
  • A triangular window pane has a base of 36 inches and a height of 26 inches. What is the area of the window pane? The area of the
    8·1 answer
  • Uhhh I need help again today
    5·2 answers
  • HELP????!?!?!??!? {PLEASEEEEEEEE
    7·1 answer
  • ???????????????????????????????
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!