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Debora [2.8K]
3 years ago
11

PLEASE HELP DUE SOON FIRST GOOD ANSWER GETS BRAINLIEST

Mathematics
1 answer:
Elena-2011 [213]3 years ago
8 0

Step-by-step explanation:

x² + y² + z² = 3(2x - y) - 1

x² + y² + z² = 6x - 3y - 1

x² - 6x + y² + 3y + z² = -1

(x - 3)² + (y + 1.5)² + z² = -12.25

(x - 3)² + (y + 1.5)² + z² = -(3.5)²

Since it follows the general equation form, it is a sphere.

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What is the value of the expression i^0 x i^1 x i^2xi^3xi^4
monitta

Answer: The answer is - 1.

Step-by-step explanation: We are given to find the value of the given expression

E_c=i^0\times i^1\times i^2\times i^3\times i^4.

We know that 'i' is an imaginary unit and its value is √-1. So, we have

i^0=(\sqrt{-1})^0=1,\\\\i^1=i=\sqrt{-1},\\\\i^2=(\sqrt{-1})^2=-1,\\\\i^3=i^2.I=(-1)i=-\sqrt{-1},\\\\i^4=(i^2)^2=(-1)^2=1.

Therefore, the given expression becomes

E_c\\\\=i^0\times i^1\times i^2\times i^3\times i^4\\\\=1\times \sqrt{-1}\times(-1)\times({-\sqrt{-1}})\times 1\\\\=1\times (-1)\\\\=-1..

Thus, the answer is - 1.

5 0
4 years ago
Read 2 more answers
What is the missing value?
Drupady [299]

Answer:

I believe that the missing value is 5, y=5

Step-by-step explanation:

1st since you can see in the ordered pair that 8 is in the x place that means 8 is the x value so what you can do is rewrite the equation to look like this: 5(8)-2y=30

2nd solve for y

5(8)-2y=30

40-2y=30

-40. -40 -subtract 40 on both side

-2y=-10

÷-2. ÷-2 -divide -2 on both sides

y=5

5 0
3 years ago
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A circle with area 36 pi has a sector with a central angle of
abruzzese [7]

Answer: 36 pi over 7.5

Step-by-step explanation:

7 0
4 years ago
Anybody know this question?
sattari [20]
The answer would be C. Mike can drive at the most 500 miles.
$200 - the rent for the week ($125)= $75
$75/($.15) the money per mile
500 miles.
Hope This Helps!
~Cupkake
3 0
3 years ago
Can someone help me really please
NARA [144]

Answer:

b

Step-by-step explanation:

3/3 = 1

4 0
3 years ago
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