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erastova [34]
3 years ago
9

Simplify the expression below as much as possible. (8 + 9i) + (5 - 91) - (8 - 7i)

Mathematics
1 answer:
Sauron [17]3 years ago
7 0

Answer:

B. 5 + 7i

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Distributive Property

<u>Algebra I</u>

  • Combining Like Terms

<u>Algebra II</u>

  • Complex Standard Form: a + bi
  • Imaginary Numbers

Step-by-step explanation:

<u>Step 1: Define expression</u>

(8 + 9i) + (5 - 9i) - (8 - 7i)

<u>Step 2: Simplify</u>

  1. Distribute negative:                     8 + 9i + 5 - 9i - 8 + 7i
  2. Combine like terms:                    5 + 7i
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How many twelfths are there in 2/3 of 3/4 more than 1/3 of 3/8 ? I know the answer already, please show how you do it .
maksim [4K]
Ok so what this means is below:
\frac{2}{3}* ( \frac{3}{4}+  \frac{1}{3} * \frac{3}{8} )
Now we need to follow the rules of PEMDAS:
So inside the parentheses we need to do the multiplication first 1/3*3/8=1/8
Now we need to add 3/4 to this 1/8+3/4=7/8
Now do 2/3 of the value of the parenthesis 7/8
This is 14/24 = 7/12
Therefore there are 7 twelfths
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3 years ago
Find the area of this shape<br> giving brainliest please help
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ANSWER: ⇒ 366.19cm²

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2 years ago
Susan has 3 pairs of shorts, 5 shirts, and 2 pairs of shoes to take to camp. If she wears a pair of shorts, a shirt and pair of
hjlf

Answer:

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Step-by-step explanation:

3 0
3 years ago
Expand and simplify 5(2x-1)-2(3x+2)
kupik [55]

Answer:

4x - 9

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Distributive Property

<u>Algebra I</u>

  • Terms/Coefficients/Degrees

Step-by-step explanation:

<u>Step 1: Define</u>

5(2x - 1) - 2(3x + 2)

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Distribute:                               10x - 5 - 6x - 4
  2. Combine like terms (x):          4x - 5 - 4
  3. Combine like terms (Z):         4x - 9
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3 years ago
An eccentric philanthropist undertakes to give away $100,000. He is eccentric because he insists that each of his gifts be a num
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Answer:

Step-by-step explanation:

An eccentric philanthropist undertakes to give away $100,000. He is eccentric because he insists that each of his gifts be a number of dollars that is a power of two, and he will give no more than one gift of any amount. How does he distribute the money?

To solve this problem, we will simply write 1,00,000 in base 2.

2^17 gives 131072, 2^16 gives 65536.

So, the first gift is 65536, we then need to repeat this process for  34,464 ((100,000-65536 = 34,464), to get all gifts in succession.

6 gifts in all: one each of $32, $128, $512, $1024, $32768, and $65536.

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3 years ago
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