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Andrews [41]
3 years ago
12

Simplify: (6-21i)-(1-7i)

Mathematics
2 answers:
taurus [48]3 years ago
8 0

Answer:

5-14i

Step-by-step explanation:

Anit [1.1K]3 years ago
7 0

Answer:

-14i + 5

Step-by-step explanation:

( 6 - 21i ) - ( 1 - 7i )

6 - 21i - 1 + 7i

-21i + 7i + 6 - 1

-14i + 5

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Choose the correct rule for the sequence: 2, 4, 8, 16,... *
lina2011 [118]

Answer:

x2

1 x (N x 2)

2 x (1 x 2) = 4

2 x (4 x 2) = 16

Step-by-step explanation:

6 0
3 years ago
Add. Write fractions in simplest form.<br> 4-12 EVENS
Virty [35]
4. 1/3   6.-0.9 or -9/10    8. 2 1/3  10. -3.45   12.4.54 or 4 27/50
7 0
3 years ago
Sylvie folds a large piece of paper in half. The fold divides the paper into two equal parts. She folds it in half again. When s
Nikolay [14]
Each time you fold a paper it will double the amount of parts. When you think about it, it's just multiplying by 2 a bunch of times.

One fold is 2 times 1, which is 2.
The second fold is 2 times 2, which is 4.
The third fold is 4 times 2, which is 8.

Using this process, we can simplify that into exponents. If the amount of times you fold is x and the parts double for each fold, then the amount of parts can be represented by:

2^{x}

So if the amount of parts is given and we need the amount of folds, just keep doubling until you get to 64. The amount of times you doubled is the number of times Sylvie folded.

Later you will learn that the opposite of an exponent is a logarithm, which would look like this:

log_{2}(64) = ?

But don't worry about that yet.
6 0
3 years ago
If (X + 8) is a factor of f(x), which of the following must be true?
julsineya [31]

Answer: C

Step-by-step explanation:

If (X + 8) is a factor of f(x), then to find the root, equate the factor to zero. That is,

X + 8 = 0

X = 0 - 8

X = -8

If -8 is substituted into f(x), the equation will tend to zero. That is,

F( -8 ) = 0

C is therefore the correct answer.

4 0
4 years ago
What are the factors of the mathematical expression 24p-27p²​
Vlad [161]

Answer:

1expn=3p

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3p(8-9p)

6 0
3 years ago
Read 2 more answers
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