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
Mrac [35]
2 years ago
5

Write the expression in standard form. 2/2-15i

Mathematics
1 answer:
nlexa [21]2 years ago
3 0
Standard form is a+bi

so get rid of that deonmenator

\frac{2}{2-15i}
multiply it by\frac{2+15i}{2+15i}
result is
\frac{4+30i}{4+225} = \frac{4+30i}{229}= \frac{4}{229} + \frac{30i}{229}

answer is \frac{4}{229} + \frac{30i}{229}
You might be interested in
Travis was attempting to make muffins to take to a neighbor that had just moved in down the street. The recipe that he was worki
aev [14]
A. The recipe required 3/4 cup of sugar and 1/8 cup of butter.
The ratio of the sugar to butter in the original recipe is

B. If Travis accidentally put a whole cup of butter in the mix, then he needs to put
cup of sugar.
C. Travis has to put 1/8 cup of butter, but he put 1 cup of butter. The ratio is

If Travis wants to keep the ratios the same as they are in the original recipe, he needs to put 8 times more of all the other ingredients.
4 0
2 years ago
What percent us 28 of 70?
RoseWind [281]
   
\displaystyle\\
 \frac{28}{70} ^{(7} =  \frac{4}{10} = \frac{40}{100} = \boxed{40\%}



3 0
3 years ago
In a bag of marbles 12% were blue 18% were green and the rest were purple if the bag has 150 marbles how many were blue or green
baherus [9]

Answer:

45

Step-by-step explanation:

12 % of the marbles are blue, and

18 % of the marbles are green, so

30 % of the marbles are either blue or green.

There are 150 marbles.

30 % × 150 = 0.30 × 150 = 45

The number of blue or green marbles is 45.

8 0
3 years ago
A carpenter constructed a rectangular sandbox with a capacity of 10 cubic feet. If the carpenter were to make a similar sandbox
jeka57 [31]

Answer:

(D)80 ft³

Step-by-step explanation:

The volume volume of the sandbox is = L × W × H

Where L = Length, W= width, H= Height.

A sandbox has the same shape as a cuboid.

A cuboid is a solid shape with rectangular base and sides. It has six rectangular faces if all sides are closed.

From the question,

LWH = 10ft³ ........................ (1).

If a similar sandbox twice as long, twice as wide and twice as high.

∴ L₍n₎= 2L, W₍n) =2W, H₍n₎ = 2H

Where L₍n₎, W₍n), H₍n₎ is the new Length,  new Width and  new Height of the similar sandbox.

∴L₍n₎ ×W₍n)× H₍n₎  = 2L × 2W × 2H

   and Volume of the new sandbox = L₍n₎ ×W₍n)× H₍n₎

 ⇒Volume of the new sandbox = 2 × 2 ×2 ×L×W×H

     Volume of the new sandbox = 8 × LWH....................(2)

    In equation(1) LWH = 10ft³.

     Substituting the value in equation(2)

    ∴Volume of the new(similar) sandbox= 8 × 10

       =80ft³.

Therefore the capacity of the second sandbox in cubic feet is 80.

The answer is option (D).

     

7 0
3 years ago
At a basketball game, a vender sold a combined total of 100 sodas and hot dogs. The number of sodas sold was 38 more than the nu
Lina20 [59]

Answer:

64 sodas

36 hotdogs

Step-by-step explanation:

Well i just guessed and checked but thats the answer

6 0
3 years ago
Other questions:
  • A​ cone-shaped paper water cup has a height of 12 cm and a radius of 6 cm. If the cup is filled with water to five dash sixths i
    6·1 answer
  • Please help! Use the Pythagorean theorem
    5·2 answers
  • Please help me (4m+9)-3(x-2)
    5·2 answers
  • Given that 2^x=7 then what is 4^x-1
    11·2 answers
  • Equation parallel to 3x+2y=-10. (-9,-2)
    14·2 answers
  • Each year, roughly 10^6 computer programmers each make $10^5. How much money is this all together? Express your answer both as a
    11·1 answer
  • Find the surface area.
    13·2 answers
  • What is the distance between these two points
    14·1 answer
  • Use the theoretical method to determine the probability of the following outcome and event. State any assumptions made.
    5·1 answer
  • The current temperature is 48°F. It is expected to drop 1.5°F each hour.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!