Answer:
A ≈ 78.5
Your answer was wrong because it said to round to the nearest tenth.
Step-by-step explanation:
First, to find the area of a circle, you need the radius or diameter of a circle. You can see that the radius is 5 (counting the units from E directly horizontal to the edge of the circle).
Area of a circle is:
A = πr²
A = π (5)²
Following PEMDAS (order of operations), you would do the exponent first:
A = π (25)
A ≈ 78.5
Answer:
y=-1/5x-8/5
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(-2-(-1))/(2-(-3))
m=(-2+1)/(2+3)
m=-1/5
y-y1=m(x-x1)
y-(-1)=-1/5(x-(-3))
y+1=-1/5(x+3)
y=-1/5x-3/5-1
y=-1/5x-3/5-5/5
y=-1/5x-8/5
2 Answers:
Choice C) It will use a closed circle
Choice D) The ray will move to the left
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Explanation:
The inequality 
means that x = -8 or x < -8. Since we're including -8 itself, which is the endpoint, we'll use a closed circle. In contrast, an open circle would be used if the inequality was 
to exclude the endpoint -8.
The ray is to the left because we're visually describing all values smaller than -8. Such example values are -10 and -22 as these values are to the left of -8 on the number line.
In short, the graph consists of a closed circle at the endpoint -8 and the arrow is to the left. We can say the shading is to the left.
Answer: He will need to stop 9 times.
Step-by-step explanation:
3150/320 = (about) 9
