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2 years ago

10

(6 feets,8 inches) + (4 feets,10 inches)=? feets, ? inches

1 answer:

Firlakuza [10]2 years ago

6 0

The answer is 11 feet 6 inches

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Write the equation of the sphere in standard form. x^2 + y^2 + z^2 + 2x − 4y − 6z = 22

madam [21]

The equation $x^{2} +y^{2} +z^{2} +2x-4y-6z=22$ in standard form looks like $(x+1)^{2} +(y-2)^{2} +(z-3)^{2} =(6)^{2}$ .

Given equation of sphere be $x^{2} +y^{2} +z^{2} +2x-4y-6z=22$ .

We are required to express the given equation in the standard form of the equation of sphere.

Equation is basically relationship between two or more variables that are expressed in equal to form. Equation of two variables look like ax+by=c. It may be linear equation,quadratic equation, cubic equation or many more depending on the powers of variables. The standard form of the equation of sphere looks like $x^{2} +y^{2} +z^{2} =r^{2}$ .

The given equation is $x^{2} +y^{2} +z^{2} +2x-4y-6z=22$ .

We have to break 22 which is in right side into various parts according to the left side of the equation.

$x^{2} +y^{2} +z^{2} +2x-4y-6z=-1-4-9+36$

$x^{2} +y^{2} +z^{2} +2x-4y-6z+1+4+9=36$

$x^{2} +1+2x+y^{2}+4-4y+z^{2} +9-6z=36$

$x^{2} +(1)^{2} +2*1*x+y^{2} +(2)^{2} -2*2y+z^{2} +(3)^{2} -2*3z=36$

$(x+1)^{2} +(y-2)^{2} +(z-3)^{2} =(6)^{2}$

Hence the equation $x^{2} +y^{2} +z^{2} +2x-4y-6z=22$ in standard form looks like $(x+1)^{2} +(y-2)^{2} +(z-3)^{2} =(6)^{2}$ .

Learn more about equations at brainly.com/question/2972832

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7 0

1 year ago

I NEED HELP ON THIS ASAP

PSYCHO15rus [73]

Answer:

A.

1 muffin equals $2.08 for the first package.
1 muffin equals $1.91 for the second package.
1 muffin equals $1.88 for the third package.

B.

Option B gives the lowest unit price.

3 0

2 years ago

A boutique marks up a $55 painting 18%. Find the new price.

Ede4ka [16]

Answer:

$9.9

Step-by-step explanation:

3 0

2 years ago

Could someone help please.

Montano1993 [528]

I think the answer is

B. ) 4/5 of the balls in the bag are red.

7 0

3 years ago

Noe take 5 minutes to rides his to down the hill to school and 10 minutes to rides up the hill from school Monday though Friday.

Sophie [7]

5x5=25 + 5x10=50

50+25=75

75x2=150 minutes

7 0

3 years ago