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Leno4ka [110]
2 years ago
14

Which expression represents the area of the base of the cone?

Mathematics
1 answer:
zaharov [31]2 years ago
4 0

Answer:

A. (pi)(3 squared)

Step-by-step explanation:

edge

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What are solutions to the equation 9x2-7x-4=0
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Answer:

Step-by-step explanation:

x =(7-√193)/18=-0.383

x =(7+√193)/18= 1.161

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3 years ago
Please help answer needed only
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A triangular pyramid has a base with an area of 43 cm squared and lateral faces with bases of 10 cm and heights of 8.6 cm. What
Jet001 [13]

Answer:

The total surface area of triangular pyramid is 172 cm squared

Step-by-step explanation:

Triangular pyramid:

  • Number of faces 4.
  • Number of vertices of a triangular pyramid is 6.
  • The volume  is \frac13 AH. A= area of the pyramid's base and H= height of the pyramid.
  • The surface area of triangular pyramid B+L. B= area of base, L= area of lateral surface.

Given that, the area of the base is 43 cm squared. Lateral faces with bases of 10 cm and heights 8.6 cm.

The 3 sides of the triangular pyramid is triangle in shape.

The area of triangle is \frac12 \times base \times height.

The lateral surface area of the triangular pyramid is

=3(\frac12 \times base \times height)

=3(\frac12\times 10\times8.6) cm squared

=129 cm squared

The total surface area of triangular pyramid is

=Area of the base + lateral surface area

=(43+129) cm squared

=172  cm squared

8 0
3 years ago
The explicit and recursive formula for 3 12 48 192
iren2701 [21]
An=3*(4^(n-1)) is the explicit
the recursive is <span>t_n = 4 * t_(n-1)</span>
8 0
2 years ago
Cos(A) = ?<br> 13/5<br> 12/5<br> 12/13<br> 5/13
ollegr [7]

Answer:

cosA = \frac{5}{13}

Step-by-step explanation:

cosA = \frac{adjacent}{hypotenuse} = \frac{AC}{AB} = \frac{5}{13}

6 0
3 years ago
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