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stellarik [79]
2 years ago
7

What is the square root of -1?

Mathematics
1 answer:
lora16 [44]2 years ago
4 0

Answer:

i

Step-by-step explanation:

i means imaginary because whatever you try you can't get a number which squared gets a negative number.

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2 years ago
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What is the domain for each function below? Choose the correct inequality symbol from the drop down menu and fill in the blank w
erik [133]

Answer:

x \le 3

x \ge 0

Step-by-step explanation:

The functions, missing from the question are:

f(x) = \sqrt{3 - x

f(x) = \sqrt{3 x

Required

Determine the domain

To get the domain, means we want to get the possible values of x.

(a)

f(x) = \sqrt{3 - x

Equate 3 - x to 0

3 - x = 0

Solve for x

-x = -3

x = 3

From the calculated value of x above;

When x exceeds 3; f(x) = undefined

So: the domain is:

x \le 3

(b)

f(x) = \sqrt{3x

Equate 3x to 0

3x = 0

Solve for x

x = 0

From the calculated value of x above;

When x falls below 0; f(x) = undefined

So: the domain is:

x \ge 0

4 0
2 years ago
-4 is less than or equal to a, and 9 is greater or equal to w
My name is Ann [436]

Answer:

w => -4

w =<9

Step-by-step explanation:

6 0
3 years ago
What times what equals -20 and added together equals -8
Leto [7]
4 x -5 = -20 then 12 + -20 = -8 
5 0
2 years ago
How did I get this????
hjlf
Basically get the total before discount and multiply it by the percentage so 12•0.15=1.8
which means you save 1.8, so then you subtract 12-1.8 and you receive 10.2
7 0
2 years ago
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