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3 years ago

Calculate the distance between (−3 + 4i) and (3 −3i) on the coordinate plane.

1 answer:

7 0

Another one for my "impossible math problems" file.

The distance between real parts of these numbers is 3-(-3) = 6.
The distance between imaginary parts of these numbers is (4-(-3)) = 7.
The straight-line distance on the complex plane between these numbers is given by the Pythagorean theorem as
distance = √(6² + 7²)
distance = √85 ≈ 9.2195

_____
If your answer choices are supposed to have radical signs, then the best choice is ...
D) √85

Otherwise, no offered choice is correct.

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Assume that the function call operator() is overloaded for data type String in the usual sense of selecting a substring from a l

krek1111 [17]

Answer:

"EF"

Step-by-step explanation:

Given

String1 = "ABCDEFGHI"

Substring : String1(4,2)

To solve this, one must understand the following

1. The function call operator () is used to overload objects of class type.

2. A copy constructor must receive its argument by reference to prevent an otherwise infinite recursion.

3. overload ( ), doesn't mean that one is not creating a new way to call a function; instead, it is a way to create an operator function that can be passed an arbitrary number of parameters

Having pointed out this,

The string to overload goes thus

String1 = "ABCDEFGHI"

The parameters goes thus

String1(4,2)

To represent this properly, we have

("ABCDEFGHI",4,2)

Which means to return 2 strings starting from the 4th index character.

It should be noted that index starts at 0.

So, the character at the 4th index is "E"

Then, we count 2 characters starting from E (i.e. E, inclusive)

This gives

"EF"

So, the returned string is "EF"

6 0

3 years ago

The product of -4 and the number is greater than or equal to 8

pishuonlain [190]

Answer:

it would be -2 or higher

4 0

3 years ago

Como se multiplican polinomios

seraphim [82]

I hope you speak english, because although i understood your question I don't know enough spanish to respond in it. You multiply polynomials by multiplying each part of one polynomial by all the other parts of the others, and then adding it all. For example: (ax+b) * (x+c) = (ax*x)+(ax*c)+(b*x)+(b*c) = $a x^{2} + acx + bx+bc$

Comprehende?

7 0

3 years ago

Ayuda es para hoy :C

olga55 [171]

Answer:

busca cymath.com

Step-by-step explanl

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3 years ago

Explain how would you name a sorting rule for 1 square, 1 rectangle , and 1 triangle .

Tanzania [10]

Lines of symmetry if the triangle is isosceles.
4, 2, 1

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3 years ago