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Nuetrik [128]
3 years ago
12

Find all complex numbers z such that z^4 = -4.

Mathematics
1 answer:
Kryger [21]3 years ago
5 0
42 x16 is this right ?
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Heather is cashier, she can ring up 12 customers in 9 minutes at this rate how many minutes does it take to ring up 4 customers
stellarik [79]

Answer:

5.2 minutes for 4 costomers.

Step-by-step explanation:

12/9=1.333 (3 repeating)

1.3 x 4 = 5.2

5 0
3 years ago
Factor the trinomial f(x) = 2x² + 5x – 12 ?
gavmur [86]

Answer:

(x + 4)(2x - 3)

Step-by-step explanation:

Given

f(x) = 2x² + 5x - 12

Consider the factors of the product of the x² term and the constant term which sum to give the coefficient of the x- term.

product = 2 × -12 = - 24 and sum = + 5

The factors are + 8 and - 3

Use these factors to split the x- term

2x² + 8x - 3x - 12 ( factor the first/second and third/fourth terms )

2x(x + 4) - 3(x + 4) ← factor out (x + 4) from each term

(x + 4)(2x - 3)

Thus

f(x) = 2x² + 5x - 12 = (x + 4)(2x - 3) ← in factored form

5 0
3 years ago
IMAGE IS DOWN BELOW!<br> SOMEONE PLEASE ME<br> ILL YOY BRAINLIST ANSWER AND POINTS!!
jekas [21]
20^2-12^2=x^2
400-144=x^2
256=x^2
x=16
3 0
2 years ago
An artist takes a large marble block and starts to carve it. After a few hours, the artist has a horse carved out of the marble.
Virty [35]
What are the answer choices...?



Thank you :)
8 0
3 years ago
Help me please and thanks;10 points a question
aleksley [76]

28. 11 degrees


Here’s a number line^^

4

3

2

1

0

-1

-2

-3

-4

-5

-6

-7

11 number six! :)

5 0
3 years ago
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