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2 years ago

Which equation represents a circle with a center at -3, -5) and a radius of 6 units?

Mathematics

1 answer:

vesna_86 [32]2 years ago

7 0

Answer:

(x+3)²+(y+5)² = 36

Step-by-step explanation:

The general equation of a circle is expressed as;

(x-a)²+(y-b)² = r² where;

(a, b) is the centre of the circle

r is the radius of the circle

Given

Centre (-3, -5)

a = -3 and b = -5

radius r = 6units

Substitute

(x-a)²+(y-b)² = r²

(x-(-3))²+(y-(-5))² = 6²

(x+3)²+(y+5)² = 36

hence the required equation is (x+3)²+(y+5)² = 36

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Step-by-step explanation:

${:}\leadsto$ $\sf 59-(2c+3)=4 (c+7)+c$

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emmasim [6.3K]

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-18r+9=14

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Determine if the following tables from a lineAr equation if so identify the slope otherwise write non linear

mariarad [96]

2)
a*2 + b = 26;
a*(-4) + b = -16;
then, a*6 = 42 => a = 7 => b = 26 -14 => b = 12;

from table, 7*9 + 12 = 63 + 12 = 75, correct;
7*(-8) + 12 = -56 + 12 = -44, correct;

slope = ( -44 + 16) / ( -8 + 4) = ( - 28) / (-4) = 7 = a;

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2 years ago

Which equation represents a line which is parallel to the line 2x+5y=-35? ( see choices )

Bas_tet [7]

I honestly think B but I'm not sure

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2 years ago

If there are 5 chaperones for every 14 kids on the feild trip and there is a total of 152 people on the trip, how many of them a

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Answer:

Step-by-step explanation:

Add the 5 to the 14 to get 19 for a total, divide your 19 by 152. You get 8. You then multiply the 5 from the original part by 8 to get 40.

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