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viva [34]
3 years ago
15

Write 19 as a complex number. (Answers choices in the pic above)

Mathematics
2 answers:
maw [93]3 years ago
6 0

Answer:

19+0i

Step-by-step explanation:

Dafna11 [192]3 years ago
4 0

Answer:

<h2>19 + 0i</h2>

Step-by-step explanation:

\text{Complex number:}\ a+bi\\\\a,\ b\in\mathbb{R}\\\\i=\sqrt{-1}\to(immaginary\ unit)\\\\19=19+0i

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State the name of the property illustrated. -6(4 + 6) = -24 + (-36)
Mice21 [21]

Answer:

It's distributive property.

3 0
3 years ago
Please evaluate the equation​
snow_lady [41]

Step-by-step explanation:

=  \sum \limits_{n  = 1}^{7} ( - 2. {6}^{n - 1} )

=  \sum \limits_ {n = 1}^{n_{ \text{max}}} (a_1. {r}^{n - 1} )

\:

a_1 =  - 2

n = 7

r = 6 \to r  >1

\:

• Find S7.

s_n =  a_1.( \frac{ {r}^{n}  - 1}{r - n} )

s_7 =  - 2.( \frac{ {6}^{7} - 1 }{6 - 1} )

s_7 =  - 2.( \frac{279.936 - 1}{5} )

s_7 =  - 2.( \frac{279.935}{5} )

s_7 =  - 2 \: . \: 55.987

s_7 =  - 111.974

The answer is B.

8 0
2 years ago
What is the radius of the circle given by the equation below? x2 - 2x + y2 - 2y - 98 = 0?
valina [46]
Complete the square for the given equation
x² - 2x + ____ + y² - 2y + _____ = 98
x² - 2x + (1) + y² - 2y + (1) = 98 + (1) + (1)
(x - 1)² + (x - 1)² = 100
(x - 1)² + (x - 1)² = 10²

Now the equation is in the form (x - h)² + (y - k)² = r²

Radius = 10



7 0
3 years ago
Simplify to create an equivalent expression. 1+4(6p−9)
myrzilka [38]
Answer: -35+24p

Step by step in picture below
3 0
4 years ago
How do you find the reciprocal of 3.6?? ...?
laiz [17]
<span>you can turn 3.6 into a fraction, and then switch the numerator and denominator: 3.6 = 3.6/1 = 36/10
the reciprocal is
10/36 = 5/18
reduced the fraction by dividing the top and bottom by 2 
you could ALSO say the reciprocal of:
3.6/1 is 1/3.6,
but i assume you're supposed to come up with a nice fraction...</span>
8 0
4 years ago
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