3 years ago

A pedestal in a craft store is in the shape

Mathematics

2 answers:

tamaranim1 [39]3 years ago

8 0

Answer:

Step-by-step explanation:

Robert sketches two rectangular prisms, A and B.

Prism A’s side lengths are 5 centimeters, 6 centimeters, and 7 centimeters.

Prism B’s side lengths were twice those of prism A’s: 10 centimeters,

12 centimeters, and 14 centimeters. Robert says the surface area of

prism B is twice the surface area of prism A. Is he correct? If he is not,

how many times as great as prism A’s surface area is prism B’s surface

area? Show your work.

Angelina_Jolie [31]3 years ago

4 0

Given:
side lengths of right triangles = 12 cm ; 16 cm ; 20 cm
lateral area = 192 cm²

lateral area of a triangular prism = perimeter * height
192 cm² = (12 cm + 16 cm + 20 cm) * height
192 cm² = 48 cm * height
192 cm² / 48 cm = height
4 cm = height

The height of the pedestal in the shape of a triangular prism is 4 cm.

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Only find the vertex and axis of symmetry

lara [203]

Answer:

vertex (5,2)

axis of symmetry: x=5

Step-by-step explanation:

vertex (h,k)

y = a(x - h)² + k

f(x)=(x-5)²+2 a = 1 h = 5 k = 2

vertex (5 , 2)

The axis of symmetry always passes through the vertex of the parabola. The x -coordinate of the vertex is the equation of the axis of symmetry of the parabola.

x = 5