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ddd [48]
3 years ago
6

Simplify the expression to a + bi form: (11+8i)-(-5+4i) PLEASE HELP

Mathematics
2 answers:
WARRIOR [948]3 years ago
4 0
If I’m correct it should be 6+4i good luck
mr_godi [17]3 years ago
4 0
Answer: 16 + 4i

Step-by-Step Explanation:
11 - - 5 = 16
8i - 4i = 4i
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I need help for my exam ?
Lera25 [3.4K]

Answer:

I think B , C AND E  are right.... I hope im right!

Step-by-step explanation:

b - 7 is a coefficient

c- 2v + 5+7u is written as a sum of the.....

e - 5 is a constant

6 0
2 years ago
Suppose you have two urns with poker chips in them. Urn I contains two red chips and four white chips. Urn II contains three red
Neporo4naja [7]

Answer:

Multiple answers

Step-by-step explanation:

The original urns have:

  1. Urn 1 = 2 red + 4 white = 6 chips
  2. Urn 2 = 3 red + 1 white = 4 chips

We take one chip from the first urn, so we have:

The probability of take a red one is : \frac{1}{3} (2 red from 6 chips(2/6=1/2))

For a white one is: \frac{2}{3}(4 white from 6 chips(4/6=(2/3))

Then we put this chip into the second urn:

We have two possible cases:

  • First if the chip we got from the first urn was white. The urn 2 now has 3 red + 2 whites = 5 chips
  • Second if the chip we got from the first urn was red. The urn two now has 4 red + 1 white = 5 chips

If we select a chip from the urn two:

  • In the first case the probability of taking a white one is of:  \frac{2}{5} = 40%  ( 2 whites of 5 chips)
  • In the second case the probability of taking a white one is of:  \frac{1}{5} = 20%  ( 1 whites of 5 chips)

This problem is a dependent event because the final result depends of the first chip we got from the urn 1.

For the fist case we multiply :

\frac{4}{6} x \frac{2}{5} = \frac{4}{15} = 26.66%   ( \frac{4}{6} the probability of taking a white chip from the urn 1, \frac{2}{5}  the probability of taking a white chip from urn two)

For the second case we multiply:

\frac{1}{3} x \frac{1}{5} = \frac{1}{30} = .06%   ( \frac{1}{3} the probability of taking a red chip from the urn 1, \frac{1}{5}   the probability of taking a white chip from the urn two)

8 0
3 years ago
What's the answer ?<br><br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B255%20-%2030%7D%20" id="TexFormula1" title=" \sqrt{255
Aloiza [94]

Answer:

\sqrt 255-30

= -14.0312805773

7 0
3 years ago
Read 2 more answers
0.05 is 1/10 the value of what
Dafna1 [17]

Answer:

0.05

Explanation:

Let x = the number

.05 = .1x

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8 0
3 years ago
Which is the correct definition of a function
Dima020 [189]

Answer:

A function is a function that passes the vertical line test

Step-by-step explanation:

the vertical line test direction:

draw a line straight down you graph if it hits the x axis two time it not a function

8 0
2 years ago
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