21.
the equation of a circle with center at (h,k) and radius r is
(x-h)²+(y-k)²=r²
so
(x-1)²+(y-2)²=5²
(x-1)²+(y-2)²=25
22.
the equation of a circle with center at (h,k) and radius r is
(x-h)²+(y-k)²=r²
so
(x-(-3))²+(y-5)²=2²
(x+3)²+(y-5)²=4
Answer:
15
Step-by-step explanation:
Using Pythagoras theorem
x²=12²+9²
x²=144+81
x²=225
√x²=√225
x=15
<h2>
<em>OladipoSeun</em><em>♡˖꒰ᵕ༚ᵕ⑅꒱</em></h2>
A rational number is a number, which can be expressed as a fraction. Since 3 can be expressed as 3=31=62=124 and so on, it is a rational number
Answer:
B
2 times 3 times 11
Step-by-step explanation: