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prisoha [69]
2 years ago
7

Help me pls my mom is yelling at me to do this and i have no idea how to do it.

Mathematics
2 answers:
KengaRu [80]2 years ago
7 0
The answer is 10x + y
Kamila [148]2 years ago
5 0

Answer:

10x+y

Step-by-step explanation:

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-165

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A sweater with a regular price of $38.50 is on sale for 30% off. Find the final
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The volume of this regular pentagonal pyramid is 82.5 cubic meters. What is the height of the pyramid?
a_sh-v [17]

the height of the pentagonal pyramid is 5. 70 meters

<h3>Volume of a regular pentagonal pyramid</h3>

The formula for determining the volume of a regular pentagonal pyramid is given as;

V=5/12tan(54°)ha^2

Where

  • a is the base edge
  • h is the height

We have the volume to be;

volume = 82. 5 cubic centers

height = h

a = 5m

Substitute the values

82. 5 = \frac{5}{12} × tan 54 × h ×5^2

82. 5 = 0. 42 × 1. 3764 × 25 × h

Make 'h' subject of formula

h = \frac{82. 5}{14. 45}

h = 5. 70 meters

The height of the pentagonal pyramid is 5. 70 meters

Thus, the height of the pentagonal pyramid is 5. 70 meters

Learn more about a pentagonal pyramid here:

brainly.com/question/16315924

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6 0
1 year ago
Which fraction is equal to 30%
Nookie1986 [14]

Answer:

Step-by-step explanation:

\frac{30}{100}=\frac{3}{10}

3 0
3 years ago
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