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Ira Lisetskai [31]
3 years ago
11

Please read below. Thank you.

Mathematics
2 answers:
storchak [24]3 years ago
5 0

2+3=5cm

Step-by-step explanation:

2 and 3 would have to be added together to get the radius of the circle, resulting in the answer being 5. 2+3=5cm that's your answer

NARA [144]3 years ago
3 0

The equation of circle with center (h,k) and radius r units is

(x -  h)^2 + (y - k)^2 = r^2

The equation of the circle with center (2,3) and radius 5 cm is

= (x - 2)^2  + (y - 3)^2 = 5^2

= x^2  -  4x + 4 + y^2 - 6y + 9 = 25

= x^2 + y^2 - 4x - 6y - 12 =0

hope it helps and is right

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Need help with this geometry question, solving for x and please explain the formula for this
Alborosie
Alright, so what we can take as a given is that arcDE/2= ∠CDE=2x+20 since the arc corresponding to the angle is 2*the angle. To solve for arcDE, we multiply both sides by 2 to get 2(2x+20)=4x+40=arcDE. Since the arcs in a circle add up to 360 degrees and we only have -20+30x and arcDE, we have -20+40+4x+30x=360 using the associative property. Simplifying, we get 20+34x=340. Subtracting 20 from both sides, we get 340=34x. Next, we can divide both sides by 34 to get 10=x. 
3 0
3 years ago
10 points.
Andrews [41]
A, 2^12.

3x - y = 12 can also be written as 3x - 12 = y

The fraction is 8^x / 2^y,
Substitute y = 3x - 12 into fraction,
8^x / 2^[3x - 12]
= 8^x / [(2^3)^x × 2^(-12)]
= 8^x / [(2 × 2 × 2)^x × 2^(-12)]
= 8^x / [8^x × 2^(-12)]
{8^x can be factorised out of numerator and denominator of fraction}
= 1 / 2^(-12)
{When the denominator becomes numerator, the power sign is switched from - to +}
= 2^(12)

Hope this helps! :)
8 0
3 years ago
Cost of a CD: $17.50<br> Markup: 45%
Marizza181 [45]

Answer:

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Step-by-step explanation:

17.50×45%=7.875

17.50+7.875=25.375 new price

8 0
2 years ago
What is the distance between (3,-9) and (6,-2)?
exis [7]

Answer:

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Step-by-step explanation:

y2-y1/x2-x1

-2-(-9)/6-3 = -2+9/3 = 7/3

8 0
3 years ago
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For the first image it is option 4
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