Given,
The coordinates of the point on the circle is (-4, -2).
The coordinates of the center of the circle is (-8, -10).
Reuired
The length of the center of the circle.
By using the distance formula, the radius of the circle can be calculated.
The distance formula is,
Substituting the value of the coordinates of the points,
Hence,
Answer:
<u>Sum of n terms of a GP:</u>
#1
- a₁ = 5
- r = 2
- n = 9
- S₉ = 5(2⁹ - 1)/(2 - 1) = 5(511) = 2555
Correct choice is C
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#2
- a₁ = 12
- r = 1/2
- n = 5
- S₅ = 12(1 - (1/2)⁵)/(1 - 1/2) = 12(31/32)/(1/2) = 23.25
Correct choice is A
Answer:
10.5
Step-by-step explanation:
Step 1:
7 : x = 2 : 3 Equation
Step 2:
2x = 21 Multiply
Step 3:
x = 21 ÷ 2 Divide
Answer:
x = 10.5
Hope This Helps :)