Answer:
Yee yee delete this i just wanted points
Step-by-step explanation:
Answer:
5(pi) (exactly) or 15.7 (approximately)
Step-by-step explanation:
The length of arc of an entire circle is the circumference of the circle.
The length of arc of a semicircle circle is half of the circumference of the circle.
C = pi * d
For a semicircle:
arc length = 0.5 * pi * d
arc length = 0.5 * pi * 10
arc length = 5(pi)
arc length = 15.7
Answer:what the answer choice or is the any?
Step-by-step explanation:
3x - 1 = 3x -1 because it's reflecting itself
Answer:
Step-by-step explanation:
Question (1)
x² + 10x + 12
= x² + 2(5x) + 5² - 5² + 12
= [x² + 2(5x) + 5²] - 5² + 12
= (x + 5)² - 25 + 12 [Since, a² + 2ab + b² = (a + b)²]
= (x + 5)² - 13
Question (2)
y² - 6y - 15
= y² - 2(3y) - 15
= y² - 2(3y) + 3² - 3² - 15
= [y² - 2(3y) + 3²] - 3² - 15 [Since, a² - 2ab + b² = (a - b)²]
= (y - 3)² - 3²- 15
= (y - 3)² - 9 - 15
= (y - 3)² - 24
