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vodka [1.7K]
3 years ago
11

Find the volume of a right circular cone that has a height of 19.5 m and a base with a

Mathematics
2 answers:
Yanka [14]3 years ago
8 0

Answer: 310.4361m³

Step-by-step explanation:

The volume of a cone is given as:

= ⅓πr²h

where,

π = 3.14

r = 3.9m

h = 19.5m

Volume = 1/3 × 3.14 × 3.9² × 19.5

Volume = 1/3 × 3.14 × 15.21 × 19.5

Volume = 1/3 × 931.3083

Volume = 310.4361m³

The volume of the right circular cone will be 310.4361m³

melisa1 [442]3 years ago
6 0

Answer:

310.6m^3

Step-by-step explanation:

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It is D, Hope this helps!

4 0
4 years ago
Find f(-9) when f(x) = |x|- 6.
san4es73 [151]

Answer: f(x) = 3

Step-by-step explanation:

f(x) = |-9| - 6

f(x) = 9 - 6

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6 0
3 years ago
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How many feet does it take to make a 6 foot circle?
masha68 [24]
This is the concept of perimeter of figures, to get the length of material that is required to make a circle with diameter 6 ft, we are required to calculate for its circumference;
circumference, C= π*diameter
C=3.14*6=18.85 ft
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6 0
3 years ago
Samantha and Matt are each saving for new bikes. So far, Samantha has saved $15 and can earn $2 per hour for babysitting. Matt h
Sophie [7]

Answer:

  • 6 hours

Step-by-step explanation:

<u>We know that:</u>

  • Samantha = 15 + 2x
  • Matt = 3 + 4x
  • Samantha = Matt
  • [x = Number of hours]

<u>Solution:</u>

  • 15 + 2x = 3 + 4x
  • => 15 - 3 = -2x + 4x
  • => 12 = 2x
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Hence, after 6 hours of work, Samantha and Matt will have the same amount.

7 0
2 years ago
write 5 to the 8 power as a quotient of two exponential terms with the same base in four different ways. use negative and/or zer
shusha [124]

Answer:

jhfjdhsuhufhre

Step-by-step explanation:

a) 3x+2(41-5x)=33            as y=41-5x is given

3x+82-10x=33

-7x+82=33

-7x=33-82

-7x=-49        cut the negative signs as its LHS and RHS

x=49/7=7

b)-5x+3(3x-3)=3   as y=3x-3 is given

-5x+9x-9=3

4x-9=3

4x=3+9

x=12/4=3

c)4x+11-5x=9

-x+11=9

-x=9-11

-x=-2         cut the negative signs as its LHS and RHS

x=2

d) 5y+ -5-2y=-11      as x=-5-2y is given

3y+-5=-11

3y=-11+5

3y=-6

y=-6/3=-2

e)-5x-4(2x+1)=35       as y=2x+1

-5x-8x+4=35

3x+4=35

3x=35-4

3x=31

x=31/3

x=10.3

7 0
4 years ago
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