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mixas84 [53]
3 years ago
13

The cone and cylinder below have equal surface area. True or false.

Mathematics
1 answer:
eduard3 years ago
8 0

Answer:

False

Step-by-step explanation:

SA of cone = pi×r×l + pi×r²

= pi×r×(3r) + pi×r²

= 3pi×r² + pi×r²

= 4pi×r²

SA of cylinder = 2pi×r×h + 2pi×r²

= 2pi×r×2r + 2pi×r²

= 4pi×r² + 2pi×r²

= 6pi×r²

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Write an explicit formula for an, the nth term of the sequence 1, 11, 21
madreJ [45]

Answer:

an = 10n - 9.

Step-by-step explanation:

This is arithmetic with first term a1 = 1 and common difference 10.

an = a1 + d(n-1)

= 1 + 10(n - 1)

= 1 + 10n - 10

= 10n - 9.

5 0
3 years ago
“The sum of 6 consecutive integers is 519” what is the third number in this sequence?
Rashid [163]
Let x be the first integer, then
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x + (x+1) + (x+2) + (x+3) + (x+4) + (x+5) = 519
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6x + 15 = 519
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x = 84
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*****************************
Our sequence is
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7 0
3 years ago
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MrRissso [65]

1) Answer:

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6 0
3 years ago
Angel got a new phone with Verizon. They charged Angel $50 each month for service, plus an additional $15 per gigabyte of data u
DedPeter [7]

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5 0
3 years ago
The coordinates of rectangle ABCD are A(1, 2), B(4, 5),C(9, 0) and D(6, -3). What is the area of the rectangle? 18 square units
Natali5045456 [20]
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1) Plot the coordinates on a graph (I have attached a visual guide)
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4 0
3 years ago
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