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vovangra [49]
3 years ago
7

Simplify (5+2i)(1-3i)

Mathematics
1 answer:
larisa86 [58]3 years ago
4 0

Answer:

5-15i+2i-6(i^2)

-6(i^2)-13i+5

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A circle is centered at (11, −9) and has a radius of 12.
ahrayia [7]
\bf \textit{equation of a circle}\\\\
(x-{{ h}})^2+(y-{{ k}})^2={{ r}}^2
\qquad 
\begin{array}{lllcl}
center\quad  (&h,&\quad  k)\qquad
radius=&r\\
&11&-9&12
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6 0
3 years ago
Choose the correct sentence. choose one answer.
tankabanditka [31]
Hoi!

The correct answer would be "Daryl received two 3's as scores on his paper from the readers, but Sheila received two 6's."

When placing a number in a sentence before an S, it is to always have an apostrophe. Along with this, this is the only sentence that uses the correct form of "readers", since in this sentence, "readers" is being used as a plural noun, not a possessive noun.

Possessive nouns contain an apostrophe to show that something belongs to someone else.

Ex: That cat is her's.

The possessive noun is "her's" because it's showing that she is the owner of the cat.

As for plural tense, it speaks for more than one person or object.

Ex: The cats scrambled up the tree.

The plural noun is "cats" because it's referring to more than one cat.

:)
7 0
3 years ago
4x-y=20 find the X and Y intercepts from the equation
GalinKa [24]

Answer:

its c

Step-by-step explanation:

i took it

7 0
3 years ago
A bag contains 4 red and 6 green gumballs. if you select 5 of them without looking, how many ways can you get exactly 3 red or e
marusya05 [52]
This is a combination problem. The approach to this is by using the nCr method, where n is the number of total objects and r is the number of success. For example, if you want to get 3 red out of the total 4, then that would be 4C3. That means,

4C3 = 4!/3!(4 - 3)! = 4 ways

If you want to get 2 green out of the total 6, then that would be 6C2. That means,

6C2 = 6!/2!(6-2)! = 15 ways

Therefore, there are a total of 4+15 = <em>19 ways</em>.
8 0
3 years ago
I am wondering Jake finished race at 24.53 18.44 Lacie finished the race at 18.44. What is the difference between Lacie's time a
Dvinal [7]

Answer:

The difference between the times is just 6.09

Step-by-step explanation:

Here, we are interested in finding the difference between the times when two athletes finished their races.

While one finished at 24.53, the other finished at 18.44; So the difference between the two will be calculated by subtracting the time which was less from the time which was more;

Mathematically, that would be 24.53 - 18.44 = 6.09

4 0
3 years ago
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