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
ASHA 777 [7]
3 years ago
5

What is the square root of -1?

Mathematics
2 answers:
Masteriza [31]3 years ago
6 0

Answer:

i

Step-by-step explanation:

The square root of a negative number is not a real number but a complex number.

We define the square root of -1 as the imaginary number i

NeX [460]3 years ago
3 0

Answer:

i

Step-by-step explanation:

You might be interested in
Find the zeros of y=x^2-6x-4
Evgen [1.6K]
X=3+√13, 3-√13

substitute y for 0 and solve for x
4 0
2 years ago
Find the values of a, b and c
katrin [286]

Answer:

3rd option

Step-by-step explanation:

use hypotenuse method

8 0
2 years ago
Circumference, radius, slant height, lateral area, and surface area are measurements of a cone. Given two of the measurements, f
USPshnik [31]

Answer:

  1. LA = 21.7 ft²; C = 18.8 ft; h = 2.3 ft
  2. h = 8 in; r = 7 in; SA = 330.1 in²

Step-by-step explanation:

Applicable relations are ...

  C = 2πr . . . . . . . r = radius, C = circumference

  LA = 1/2·Ch . . . . h = slant height, LA = lateral area

  SA = πr² +LA . . . SA = total surface area

__

1. Given r and SA, we can find the other measures as ...

  LA = SA -πr² = 50 ft² -π(3 ft)² ≈ 21.7 ft²

  C = 2πr = 2π(3 ft) ≈ 18.8 ft

  h = 2·LA/C ≈ 2·21.7 ft²/(18.8 ft) ≈ 2.3 ft

(Please note that for calculations using intermediate results, we used the full-precision values of those results, not the rounded ones. Rounding is always the last operation. Please note, too, that we have used a value for π sufficient to ensure accuracy in all the digits shown here.)

__

2. Given C and LA, we can find the other measures as ...

  h = 2·LA/C = 2(176 in²)/(44 in) = 8 in

  r = C/(2π) = (44 in)/(2π) ≈ 7.0 in

  SA = LA +πr² = LA +rC/2 ≈ 176 in² +(7.0 in)(44 in)/2 ≈ 330.1 in²

4 0
3 years ago
A circle has a radius of 4 meters and a central angle AOB that measures 120°. What is the length of the intercepted arc AB? Use
Valentin [98]
<span>120 degs --> 1/3 of the circumference :) hope i helped!</span>
6 0
3 years ago
Read 2 more answers
A rectangle with an area of 4/7 m2 is dilated by a factor of 7. What is the area of the dilated rectangle
tatyana61 [14]

according to the picture we have:

x.y=4.7

(7)x(7)y=49xy=(49)(4.7)=230.3

6 0
3 years ago
Other questions:
  • Use the following scenario to answer the question below:
    8·1 answer
  • Robby is a cashier at the supermarket. During a 9-hour shift, he checks out 108 customers. If he checks out the same number of c
    11·2 answers
  • The revenue, in thousands of dollars, that a company earns selling lawnmowers can be modeled by R(x)=90x-x^2 and the company's t
    13·2 answers
  • Can somebody plz help me. I'm on the last question and I'm trying to get done. plz
    7·1 answer
  • Which of the following problems can be solved by finding 4 divided by 2/3?
    15·1 answer
  • Solve for x.<br> 3(-2x-3)+4x-3=8
    10·2 answers
  • Use the net to compete
    12·1 answer
  • $2.99 for 17 lb<br> What the answer
    6·1 answer
  • 0<br> 100%<br> Which expression is equivalent to (-11x2 +1.4x-3) + (4x2-2.7x+8)
    14·1 answer
  • Please solve this all for 24 points. &lt;333 :)
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!