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
adelina 88 [10]
1 year ago
8

Directions: Simplify the following expressions using the imaginary number.

Mathematics
1 answer:
drek231 [11]1 year ago
5 0

Answer:

1  i(sqrt5)

2  7i

3  -9i

4  -64i

5  -5i(sqrt2)

6  -4i(sqrt3)

7  10i(sqrt3)

8  2i(sqrt2)

9  3i(sqrt7)

10  -30i(sqrt2)

Step-by-step explanation:

i is the square root of (-1). We can simplify each one as such.

You might be interested in
Use the discriminant to describe the roots of each equation. Then select the best description.
Marrrta [24]
Let's find the discriminant of <span>x^2+9x+14=0.  Here, a=1, b=9 and c=14.

The discriminant is b^2-4ac.  Substituting the above numeric values,
                                9^2-4(1)(14) = 81-56 = 25

The sqrt of 25 is 5.  Thus, your polynomial has two unequal, real roots.

Off the point example:  If the discriminant were zero, your poly would have two real, equal roots.</span>
4 0
3 years ago
Plzzz guys help I'm so confused
GalinKa [24]

Answer:

<u>y = 320,000 ( 1.048 ) ^x</u>

x = number of years

(the  ^  before the x symbolizes "to the power of," but I can't do that on my keyboard)

Step-by-step explanation:

formula i used:

A = <em>amount that you start with</em>

t = amount of years / time

%increase: you must convert your percent (4.8%) to a decimal (0.048)

A ( 1 + %increase ) ^t

4 0
2 years ago
Read 2 more answers
A circle cuts the x-axis at (4,0) and (14,0), and cuts the y-axis at (0,6) and (0,8). Find it's equation
gayaneshka [121]
It is not a circle but you can find the equation of the ellipse.
To do this we need to work out the major and minor radii and the centre
The centre is at (9, 7)
The major (y) radius is 1 and the minor (x) radius is 5
Therefore the equation is (x-9)/5 + (y-7)/1 = 1
5 0
3 years ago
An airplane traveled 108 miles in 20 minutes? How long will it take to fly 162 miles?
satela [25.4K]

Answer:

poopy

Step-by-step explanation:

Tee Hee

7 0
2 years ago
Read 2 more answers
Ya'll FR get 50 points if you answer this.
Ivan

Answer:

I would say B

Step-by-step explanation:
A. would make no sense and the graph will always have a straight line unless its compairing something and it does not have anything to do with 0 because it shows where it starts

6 0
2 years ago
Read 2 more answers
Other questions:
  • Christian sold tickets to game. Good seats were $5 each poor seats cost $2 each. 210 people attended and paid $660. Write a syst
    9·1 answer
  • jill measured the length of her eraser. She wrote 5 on her paper without the unit. Which metric unit of measure should Jill incl
    11·1 answer
  • Can someone help me with this? I will mark you as brainliest
    6·1 answer
  • Select the correct answer.
    14·1 answer
  • 2. The picture shows a feeding trough that is shaped like a right prism. (a) The top of the feeding trough is open so that anima
    12·1 answer
  • (4/3) to the power of 2 help??
    7·2 answers
  • each Saturday morning Janie works 5 hours and earns $35.75. How much does Janie earn for each hour she works?
    9·1 answer
  • X = 5(84/100) + 4(10/100) +3(4/100) + 2(1/100) + 1(1/10)
    12·2 answers
  • Easy question? Please help I’ll give brainliest! :( Please provide small explanation like instructions it’s okay if not though
    14·1 answer
  • find the common difference and the three terms in the sequence after the last one given -39 -33 -27 -21​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!