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
sveta [45]
4 years ago
13

Write the following as a complex number in the form a + bi square root -245

Mathematics
2 answers:
Pepsi [2]4 years ago
5 0

Answer:

Step-by-step explanation:

√(-245)=√(49×5×i^2)=7√5 i=0+7√5 i

svetoff [14.1K]4 years ago
3 0

Answer:

\sqrt{-245}  in the form a + bi is 0+7\sqrt{5}i

Step-by-step explanation:

We know that

       i=\sqrt{-1}

We need to find  \sqrt{-245}

     \sqrt{-245}=\sqrt{-1}\times \sqrt{245}=i\sqrt{245}=i\sqrt{49\times 5}=i\times 7\sqrt{5}

\sqrt{-245}  in the form a + bi is 0+7\sqrt{5}i

You might be interested in
Which equation compares the number of computers in b to the number of a?
ss7ja [257]

Answer:

b = 1/3 a.

Step-by-step explanation:

The number in b = 1/3 of the number in a.

b = 1/3 a.

5 0
3 years ago
The result is my present age. What is my present age? ​
Sergeu [11.5K]

Answer:

d) 9 years

Step-by-step explanation:

let present age as 'x'.

then, x=2x-3(x-6)

x=2x-3x+18

x= -x+18

2x=18

x=18/2

x=9

4 0
3 years ago
119.31 is 82% of what number
madam [21]
To solve
82% of x = 119.31
rewrite
x = 119.31/0.82
solve
x <span>≈ 145.5</span>

Hope this helps :)
5 0
3 years ago
Read 2 more answers
Two airplanes are are 1600 miles apart and heading toward each other at different altitudes. The first plane is traveling north
Elden [556K]

The planes will pass each other in 1.14 hours.

Why?

To solve the problem, we must remember that since both planes are heading toward each other, the speed to the calculations will be their combined speeds.

The speed will be:

Speed=PlaneA+PlaneB\\\\Speed=620mph+780mph=1400mph

Now, calculating the time, we have:

x=v*t\\\\1600mi=1400mph*t\\\\t=\frac{1600mi}{1400mph}=1.14hours

Hence, the planes will pass each other in 1.14 hours.

Have a nice day!

6 0
3 years ago
The dot plot below shows 6 data points with a mean of 16.
lianna [129]

Answer:I think its C

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • IfH = 80° and J = 45°, then HJ ___ HG
    7·2 answers
  • Man and Sato we’re building a coffee table using 4 inch tiles. Nan used 30 tiles and Sato uses half as many. How many total tile
    12·1 answer
  • Solve This question give it a Try and I’ll give you brainliest
    14·1 answer
  • A soccer team is having a car wash. The team spent $65 on supplies. They earned $335, including tips. How much was the the team'
    9·2 answers
  • The volume of a cylinder is 210 cm³ with a radius of 14 cm find the curved surface area if the formula for curved surface area i
    8·1 answer
  • The fastest elevators in the Burj Khalifa can travel 330 feet in just 10 seconds How fast does the elevator go in 1 foot?
    12·2 answers
  • Use the Pythagorean theorem to find z.
    13·1 answer
  • What is 3y-y equal too.
    15·2 answers
  • Help. Please what is<br>3^3-17<br>and show how you got the answer​
    13·2 answers
  • Who's up for actually helping me with this?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!