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sukhopar [10]
3 years ago
12

PLS ANSWER THIS ITS DUE SOON

Mathematics
1 answer:
Mrrafil [7]3 years ago
7 0

Answer:

i think that its b

Step-by-step explanation:

 

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Find an equation of the circle that satisfies the given conditions. (Give your answer in terms of x and y.) Center at the origin
Elanso [62]

Answer:

The equation of circle is x^2+y^2=65.

Step-by-step explanation:

It is given that the circle passes through the point (8,1) and center at the origin.

The distance between any point and the circle and center is called radius. it means radius of the given circle is the distance between (0,0) and (8,1).

Distance formula:

d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Using distance formula the radius of circle is

r=\sqrt{\left(8-0\right)^2+\left(1-0\right)^2}=\sqrt{65}

The standard form of a circle is

(x-h)^2+(y-k)^2=r^2         .... (1)

where, (h,k) is center and r is radius.

The center of the circle is (0,0). So h=0 and k=0.

Substitute h=0, k=0 and r=\sqrt{65} in equation (1).

(x-0)^2+(y-0)^2=(\sqrt{65})^2

x^2+y^2=65

Therefore the equation of circle is x^2+y^2=65.

5 0
3 years ago
Calculate the area of the triangle.ILLL GIVE BRAINLIEST but plz help!
Aleksandr [31]

Answer:

i believe its 11

Step-by-step explanation:

i counted the squares and the ones that are split in half im not 100 percent sure but pretty sure

3 0
2 years ago
Read 2 more answers
Look at this set of 5 numbers: 21471 By how much would the mode decrease if the number 1 were added to the set?
Fofino [41]

Answer:

  • Zero

Step-by-step explanation:

The mode is the number of most repeated data in the set.

Given set 2, 1, 4, 7, 1 has mode 1 (repeated twice).

If we add 1 to the set the mode will remain 1 as it will repeat three times, so the mode won't change.

There is no change in mode, so the mode decrease is zero.

6 0
2 years ago
4x+10= 34<br>can someone help me?​
vazorg [7]

Answer:

x = 6

Step-by-step explanation:

subtract 10 from both sides -> 4x = 24

divide by 4 to get x = 6

7 0
3 years ago
Read 2 more answers
Pleaseeeee helpppppppppppppppppppppppp
natta225 [31]
I think it’s 309 cm because each side is 1 cm, there’s 3 sides, and 103 triangles. so 103x3=309 sides which means 309 cm
5 0
3 years ago
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