Answer: 26.01 pi
Step-by-step explanation: The formulae to find the area of a circle is pi times the radius squared. So 5.1 times 5.1=26.01. So the answer would be 26.01pi or (using 3.14 for pi) 81.6714
Perpendicular has slope that mutiplies to -1 to the other slope
for
ax+by=c
slope=-a/b
-1x+3y=9
-(-1)/3=1/3
1/3 times what=-1?
-3
y=mx+b
m=slope
y=-3x+b
find b
(-3,2)
(x,y)
x=-3
y=2
2=-3(-3)+b
2=9+b
mnus 9
-7=b
equaton is
y=-3x-7 or
3x+y=-7
Answer:
Step-by-step explanation:
<u>Lets analyze the graph:</u>
- 1. It is decreasing function as line goes down as x-value increases. It means the slope is negative. We have two same negatives: -2
- 2. Line is solid, so the inequality sign is either ≤ or ≥
- 3. Shaded region is 'under' the line, it means the sign is ≤
<u>Based on above observations and the fact that all have same y-intercept of -2, we can say required inequality is:</u>
Correct option is C
It should be 6, radius is half of the circumference (6/3=2).