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
zheka24 [161]
1 year ago
6

I need help with this question please and thank you

Mathematics
1 answer:
Nadusha1986 [10]1 year ago
8 0

we have the number

6-\sqrt[]{-40}

Remember that

i^2=-1

so

substitute

6-\sqrt[]{(i^2)40}6-2i\sqrt[]{10}

therefore

the real part is 6

the imaginary part is -2√10

You might be interested in
John who is 5 ft tall is standing 20 feet away from a tree, and you measure the angle of elevation to be 38∘. How tall is the tr
fenix001 [56]

Answer:

The tree is 20.6 ft tall.

Step-by-step explanation:

Please check the attached graph.

From the diagram, it is clear that John is 5 ft tall is standing 20 feet away from a tree, making an angle of elevation to be 38⁰.

The diagram makes a right-angled triangle.

  • Given the angle = Ф = 38⁰
  • Adjacent = a = 5 ft
  • Opposite = b = 20 ft
  • Hypotenuse = Tree length = c  ?

Pythagorean Theorem:

For a right-angled triangle, with sides 'a' and 'b', the hypotenuse 'c' is defined as:

\:c=\sqrt{a^2+b^2}

substituting a=5, b=20

c=\sqrt{5^2+20^2}

c=5\sqrt{17}

c=20.6 ft

Thus, the tree is 20.6 ft tall.

3 0
2 years ago
Identify the radius of the circle whose equation is x^2 + y^2 = 36.
pantera1 [17]

Answer:

radius = 6

Step-by-step explanation:

The equation of a circle centred at the origin is

x² + y² = r² ←r is the radius

x² + y² = 36 ← is in this form

with r² = 36 ⇒ r = \sqrt{36} = 6

3 0
3 years ago
60.3 60.44 witch one is greater
Sindrei [870]
60.44 is greater than 60.3
-you can see this when you subtract 60.3 from 60.44 this would leave a 0.11 which is a positive number.
-thus meaning 60.44 is larger/greater.
4 0
2 years ago
it took Peter 3 hours to drive to his friend in Connecticut when he was driving with the average speed 54 mph.Find the constant
Vsevolod [243]

Answer:


Since k is constant (the same for every point), we can find k when given any point by dividing the y-coordinate by the x-coordinate.

so i assume it could be 162 sorry if i am wrong let me know if it is right or not

8 0
3 years ago
Ron is selling items at a craft show. The first hour his sales are $20. His sales grow by 10% each hour. What are Ron's total sa
olga nikolaevna [1]
C. $122.10

20 first hour
20+0.1*20 = 22 second hour
22+0.1*22 = 24.2 third hour
24.2+0.1*24.2 = 26.62 fourth hour
26.62+0.1*26.62 = 29.282 fifth hour
Total=$122.10
5 0
3 years ago
Other questions:
  • mrs. Robbins read 6 nights in a row. she read between 13 and 42 pages but never read the same number of pages. what could the nu
    5·1 answer
  • Fill in the blanks
    13·2 answers
  • Let f(x) = x 7 and g(x) = x − 4. find f(x) ⋅ g(x). x2 − 3x − 28 x2 − 3x − 11 x2 3x − 28 x2 3x − 11
    9·2 answers
  • Which expression is equivalent to -
    7·1 answer
  • Please please help me
    9·1 answer
  • Square of 2x+3y.Please help me​
    11·2 answers
  • A rectangular field is nine times as long as it is wide. If the perimeter of the field is 1700 feet, what
    11·1 answer
  • -5.5 make it into fraction or mixed number in simplest form<br>​
    12·1 answer
  • Does the budgeted amount cover the actual amount for expenses, savings, and emergencies?
    11·1 answer
  • Help with Trigonometric identities
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!