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2 years ago

Find the surface area of the equilateral triangular prism below.

Mathematics

1 answer:

velikii [3]2 years ago

3 0

Answer:

Area of a triangle = bh/2

Area of a rectangle = bh

The area of the triangles are the same, the area of the rectangles are the same.

triangle: 9x8/2

72/2 = 36

Rectangle: 8x14=112

There are 2 triangles and 3 rectangles so,

2(36)+3(112)

72+336= 408 in²

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denpristay [2]

Answer:

Step-by-step explanation:

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Step-by-step explanation:

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Is (1, 4) a solution to this system of equations? 8x + 3y = 20 x + 4y = 17

vampirchik [111]

Answer:

Yes.

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Coordinates (x, y)
Systems of Equations

Step-by-step explanation:

Step 1: Define

Identify

8x + 3y = 20

x + 4y = 17

(1, 4)

Step 2: Check

Plug and verify the coordinates is a solution.

Substitute in point [1st Equation]: 8(1) + 3(4) = 20
Multiply: 8 + 12 = 20
Add: 20 = 20 $\checkmark$
Substitute in point [2nd Equation]: 1 + 4(4) = 17
Multiply: 1 + 16 = 17
Add: 17 = 17 $\checkmark$

∴ Since both equations work out, (1, 4) is a solution to the systems of equations.

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2 years ago