Short Answer: n = 5
The chords bear the relationship of (in this case)
18*(n + 1) = 9 * (n +7) Remove the brackets
18n + 18 = 9n + 63 Subtract 9n from both sides.
18n - 9n + 18 = 63
9n + 18 = 63 Subtract 18 from both sides.
9n = 63 - 18
9n = 45 Divide by 9
n = 45/9
n = 5 <<<<<<<< Answer
Answer:
1) Radius of the cone = 9.5 cm
2) BA = 90.25 π cm²
3) SA = 384.7 π cm²
Step-by-step explanation:
1) Radius of the cone = 9.5 cm
2) Base Area of the cone =
BA = (π)(9.5)²
BA = 90.25 π cm²
3) Surface Area of Cone =
SA = π(9.5)(9.5 + √(29.5)²+(9.5)²)
SA = 9.5π(9.5 + 31)
SA = 9.5π(40.5)
SA = 384.7 π cm²
Edge 2022
Answer:
Step-by-step explanation:
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Answer:
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Step-by-step explanation:
3x² + xy2 – 3xy-y? >> 3x² - xy - y
line 1: = (3x² + xy2)+(-3xy – y?)
ANS 3x² - xy - y 《Correct》
line 2: = x(3x + y2) - y(3x – y2)
ANS 3x² - xy +2y²
line 3: = (x-y) (3x +y?)
ANS 3x² - 2xy - y²
If it incorrect, I'm sorry.
