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Paladinen [302]
3 years ago
8

The volume of a cylinder is given by V = ar?h

Mathematics
1 answer:
expeople1 [14]3 years ago
5 0

Answer:

D

Step-by-step explanation:

V=\pi r^{2}h\\  =\pi*(x+2)*(x+2)*3x+8\\  =\pi *x(x+2)+2(x+2)*3x+8\\  =\pi *x^{2}+4x+4*3x+8\\  =3x(x^{2}\pi+4x\pi+4\pi)+8(x^{2}\pi+4x\pi+4\pi0 \\  =3x^{3}\pi+20x^{2}\pi+44x\pi+32

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Question 1
Ahat [919]

Answer: x = 22


Explanation:


1) Corresponding sides and correspoding angles of congruent triangles are equal.


2) When you name two congruent triangles the order of the vertices signal which sides and angles are congruents.


That triangle ABC is congruent to triangle DEF means that these are the corresponding parts, which are congruent to each other:


  • ∠A and ∠D are congruent
  • ∠B and ∠ E are congruent
  • ∠C and ∠F are congruent
  • Segment AB and segment DE are congruent
  • Segment BC and segment EF are congruent
  • Segment AC and segment  DF are congruent

In the figures, it is given that the segment DF measures (1/2)x  - 1 and the corresponding segment AC measures 10 units.


Hence, you set this equation: (1/2)x - 1 = 10


Solving for x:

  • (1/2)x = 10 + 1
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  • x = 2(11)
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5 0
3 years ago
Kimmy’s savings account has a balance of $76.23 in June. By September, her balance is 5 times as much as her June balance. Betwe
Elden [556K]
Kimmy’s balance in December will be $486.98.

Explanation:
76.23 x 5 = 381.15
The balance is $381.15 in September.
381.15 + 87.83 = 468.98
The balance In December is $486.98.
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3 years ago
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