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kkurt [141]
3 years ago
6

20 points What is the square root of -16? -8i -4i 4i 8i

Mathematics
2 answers:
olga55 [171]3 years ago
8 0

Answer:

4i

Step-by-step explanation:

Negative numbers don't have real square roots since a square is either positive or 0. The square roots of numbers that are not a perfect square are members of the irrational numbers. This means that they can't be written as the quotient of two integers. So you have to use the "imaginary number", i.

Finger [1]3 years ago
3 0

Answer: 4i

Step-by-step explanation:

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Associative property

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3 years ago
What is the value of x and y?
crimeas [40]

Answer:

C. x = 8 , y = 40

Step-by-step explanation:

since this is an Isosceles triangle 5x = 40° and x = 8

The sum of interior angles in a triangle is equal to 180°

40° + 5x + 2y + 20 = 180° add like terms

5x + 2y = 120

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3 years ago
I have a LCM and GCF homework can someone help i dont understand??
Sindrei [870]
Alright,

So LCM stands for "least common multiple"
While GCF is "greatest common factor"

Let's look at your number 1 (3&6)

3,6,9,12
6,12,18,24

Both times table has 6 in them making 6 the LCM

To find the GCF we need to know what can go into 3 equally. Since 3 is prime the greatest factor for 3 is....3. 6 goes into 3 two times so 3 is the GCF.

LCM:6
GCF:3

Lets do number 10 (40&4)

For LCM you see whats the smallest number that is in both times tables

4,8,12,16,20,24,28.......40
40,80, 160....

40 is the LCM because 40 is what's the smallest number between the two

GCF?

4 times 1 equals 4. Nothing bigger than 4 can make 4 (if your multiplying). That makes 4 automatically the GCF. :)
6 0
3 years ago
Plz tell me all five and i will give u a brainliest
pochemuha

Answer:

Step-by-step explanation:

FIRST ONE D

SECOUND ONE IS 52

THRID 505

FORD 40

FIVE 18

6 0
3 years ago
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