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IrinaVladis [17]
2 years ago
12

This is a two step equation​

Mathematics
2 answers:
Novosadov [1.4K]2 years ago
6 0

Answer:

b = -18

Step-by-step explanation:

to find be you need to isolate the variable. First, you have to multiply both sides by 13 to cancel the denominator. Then, add 8 to both sides to cancel the negative 8 on the left. You should be left with what x equals.

-8+b/13(13) = -2(13)

-8+b = -26

+8       +8

b = -18

ArbitrLikvidat [17]2 years ago
5 0

Answer:

b = -18

Step-by-step explanation:

First multiply 13 on both sides which will give you

-8 + b = -26

Then add 8 to both sides and will give the answer

b = -18

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The answer i see is d

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Write the equation of the sphere in standard form. x^2 + y^2 + z^2 + 2x − 4y − 6z = 22
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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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1 year ago
50 POINTS
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Answer:

Area of sector = 21.21

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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The perimeter of a rectangle is 34cm.Find the breadth of the rectangle if its length is 12cm.​
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breadth = 5 cm :)

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