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3 years ago

If the complex number x = 3 + bi and |x|2 = 13, which is a possible value of b?

Mathematics

1 answer:

Naddika [18.5K]3 years ago

3 0

Answer:

A: 2

Step-by-step explanation:

EDGE 2021

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In how many ways can you spell the word FOOT in the grid below? You can start on any letter F, then on each step you can step on

muminat

There are six ways in which the word FOOT may be spelt starting at any letter.

<h3>What is combination?</h3>

The term combianntion offers a plausible way to carry out a selection as long as we do not give preference to the order in which the selection is made. In this case, we are told that we can start from any letter therefore order is not important.

There are four letters in FOOT and one letter is repeated twice therefore;

4C2 = 4!/(4-2)! 2!

4C2 = 4 * 3 * 2!/2! * 2 * 1

4C2 = 12/2

4C2 = 6

Learn more about combination: brainly.com/question/25351212

7 0

3 years ago

Factor the algebraic expression below in terms of a single trigonometric function. csc 2x - 1

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(csc(x) + 1)(csc(x) -1)

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3 years ago

What’s the perimeter of 7.4cm and 4.5cm

Fudgin [204]

Answer:

23.8 cm

Step-by-step explanation:

7.4(2)+4.5(2)=23.8

5 0

3 years ago

Can someone help pls omg

hodyreva [135]

Answer:

see explanation

Step-by-step explanation:

Sum the sides of both polygons and equate.

(20)

x + 4 + x + 2 + x + 5 = 2(x + 1) + 2(x + 3) ← distribute parenthesis

3x + 11 = 2x + 2 + 2x + 6

3x + 11 = 4x + 8 ( subtract 3x from both sides )

11 = x + 8 ( subtract 8 from both sides )

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5(12x) = x + 7 + 6x + 9 + x + 10

60x = 8x + 26 ( subtract 8x from both sides )

52x = 26 ( divide both sides by 52 )

x = $\frac{26}{52}$ = $\frac{1}{2}$

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2 years ago

Which graph best represents the solution to the system of equations shown below?

siniylev [52]

1.
y = -4x + 19
y = 19 = -4x
x = - y -19/4

7 0

3 years ago

Read 2 more answers