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2 years ago

What is the sum of 7 of the interior angles of a regular decagon?

Mathematics

1 answer:

Dominik [7]2 years ago

6 0

Answer:

the size of interior decagon is 70

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Find an equation of the sphere with center (4, −12, 8) and radius 10.

Lorico [155]

Answer:

Step-by-step explanation:

To find an equation of the sphere with center (4, −12, 8) and radius 10

$(x-4)^2+(y+12)^2+(z-8)^2 = 100$

intersection with xy-plane

Put z=0

$(x-4)^2+(y+12)^2+(0-8)^2 = 100$

$(x-4)^2+(y+12)^2 = 36$

(A circle with centre at (4,-12) and radius 6)

intersection with xz-plane

Put y =0

$(x-4)^2+(0+12)^2+(z-8)^2 = 100$

$(x-4)^2+(z-8)^2 = -44$

Sum of squares cannot be positive, so DNE

intersection with yz-plane

Put x=0

$(0-4)^2+(y+12)^2+(z-8)^2 = 100$

$(y+12)^2+(z-8)^2 = 84$

A circle in YZ plane with centre at y =-12 and z =8 and radius square root of 84

5 0

3 years ago

Pleassee HELPP me with 7,8 thank youuu

Daniel [21]

Answer:

y=8,y=0

that's the answer I got tho

4 0

2 years ago

23 x 46 = blank × 23 <br>find the missing number help please

myrzilka [38]

Answer:

23x46=46x23

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Two dices are thrown. Find the probabilty of getting:

horsena [70]

Answer:

(A) 2/12 or 1/6. (B) 2/12 or 1/6 (C) 4/12 or 1/3.

Step-by-step explanation:

7 0

2 years ago

182.6 is 83% of what number?

GarryVolchara [31]

I think the answer is <span>x=220</span>

7 0

3 years ago