Answer:
Center ( 4 , -2) and r = 6
Step-by-step explanation:
x² - 8x + y² + 4y - 16 = 0
x² - 8x + y² + 4 y = 16
x²- 2*4x + y² + 2 *2y = 16
(x² - 2*4x + 16 ) - 16 + (y² + 2*2y + 4) -4 = 16
(x - 4)² + (y + 2)² = 16 + 16 + 4
(x - 4)² + (y -[-2])² = 36
(x- 4)² + ( y - [-2] )² = 6²
Compare with (x - h)²+ (y - k)² = r²
Center ( 4 , -2) and r = 6
Part A
The number of walking planks is given by the series
5, 9, 13, ...,
This is an arithmetic series with
a = 5, the first term
d = 4, the common difference
On the n-th day, the number of walking planks is
Answer:
Part B
On the 12-th day, the number of walking planks is
Answer: A. 49
Answer:
base=6
Step-by-step explanation:
When x is 0, y is -9. (0,-9). When y is 0, x is 9/6. (9/6,0)
Answer:
When two lines intersect they form two pairs of opposite angles, A + C and B + D. Another word for opposite angles are vertical angles. Vertical angles are always congruent, which means that they are equal. ... Two angles are said to be complementary when the sum of the two angles is 90°.
Step-by-step explanation: