<h3>
Answer: 18pi</h3>
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Explanation:
The area 81pi square meters leads to the radius 9 meters
Use the formula A = pi*r^2 to see why this is the case. You plug in A = 81pi and solve for r to get r = 9.
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Once you know the radius, you can determine the circumference C
C = 2*pi*r
C = 2*pi*9
C = 2*9*pi
C = 18pi
The circumference is the perimeter, or distance, around the circle.
<span>use:S(OH) C(AH) T(OA) depending on the info given
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your x-intercept is 3 and I don't know why I have to do 20 characters for an answer that involves 3 words and 1 number
Total cost of item = $138
Explanation:
The tax percentage = 15%
cost of item = $120
sales tax = cost of item × The tax percentage
sales tax = 120 × 15%
=120 × 0.15
sales tax = $18
Total cost of item = initial cost of item + sales tax
Total cost of item = 120 + 18
Total cost of item = $138
Answer:
r=0
Step-by-step explanation:
slope=(y2-y1)/(x2-x1)
2=(r+2)/(10-9)=r+2
r=2-2=0
r=0
