Alright!
To solve, all we need to do is <em>subtract the area of the inner circle from the arear of the outer circle.</em>
But first, we need to find the area of both
Key equation: πr²
π = 3.14
Inner cirle area = π13²
π13² = 530.66
Outer cirle area = π21²
I got 21 by adding 8 and 13: both added together makes the radius of the larger circle
π21² = 1,385.74
Now let's <em>subtract. </em>
1,385.74 - 530.66 = 855.08
The area of the blue is = 855.08 yards²
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Part 2:
Hexagon with 6cm sides and an apothem of 
The answer is C. 93.53
Answer:
-6
Step-by-step explanation:
I got -6, because -11 + 9 is -2 and -2 - 4 is -6. Hope this helped! If you are still confused, please comment so I can help you!
Answer:
$15.45
Step-by-step explanation:
15.00×3%=0.45
15.00+0.45=15.45
Answer:
gcf-32
Step-by-step explanation:
factors of 16: 1, 2, 4, 8, 16
factors of 32: 1, 2, 4, 8, 16, 32
Answer:
y = 700x - 400
Step-by-step explanation:
A negative number represents an altitude below sea level.
Beginning: -400
y = mx + b
y = mx - 400
In 2 hours the altitude was now 1000 m.
1000 m - (400 m) = 1400 m
The altitude went up 1400 m in 2 hours. The rate of change is
1400/2 m/h = 700 m/h
The rate of change is the slope.
y = 700x - 400
