Answer:
Combine like terms
4r+2=-2
Subtract 2 from both sides
4r=-4
Divide 4 by from both sides
r=-1
Complete the square to get the equation in vertex form with
a<span> = -16, </span>h<span> = 1, and </span>k<span> = 19. The path is a reflection over the </span>x<span>-axis and narrower. It is also translated right 1 unit and up 19 units.</span>
Answer:
H and c
Step-by-step explanation:
Answer:
Perimeter of the board
Step-by-step explanation:
That measurement of "the border of her bulletin board" is actually the perimeter of the board.
Answer:
Step-by-step explanation:
The first step is to determine the areas of the inner and the bigger circles.
The formula for determining the area of a circle is expressed as
Area = πr²
Where
r represents the radius of the circle.
π is a constant whose value is 3.14
Considering the inner circle,
diameter = 148.4 cm
Radius = 3 inches
Area = 3.14 × 3² = 28.26 inches²
Considering the bigger circle,
Radius = 7 inches
Area = 3.14 × 7² = 153.86 inches²
The area between the bigger and inner circles is
153.86 - 28.26 = 125.6 inches²
Probability = number of favourable outcome/number of total outcome.
the probability you land inside the bigger circle but outside smaller circle is
125.6/153.86 = 0.82
