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3 years ago

Find the surface area of a pyramid, explain in detail.

Mathematics

1 answer:

aivan3 [116]3 years ago

4 0

Answer:

SA = 52900 + 2300√1313 m²

Step-by-step explanation:

The equation of the surface area of a pyramid:

SA = area of base + 0.5 * perimeter of base * slant height

1. Area of the base: Since it's a square base, 230² m² = 52900 m²

2. Perimeter of the base: The base is square, 230*4 m = 920 m

3. Slant height: 115² + 140² = h² --> h² = 32825 --> h = 5√1313 m

Plug in: SA = 52900 + 0.5 * 920 * 5√1313

Multiply: SA = 52900 + 2300√1313 m²

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charle [14.2K]

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4 0

3 years ago

Two cyclists , A and B , are going on a bike ride and are meeting at an orchard . They left home at the same time . Functions A

vova2212 [387]

Answer:

Cyclist A lives farther from the Orchard

Step-by-step explanation:

Given

$A(x) =48.5 -21x$

$B(x) =42 -16.8x$

Required:

Who lives farther from the Orchard.

To do this, we simply calculate the y intercept.

This represents the total distance traveled to get to the Orchard

To calculate y intercept, we set $x = 0$

So:

$A(x) =48.5 -21x$

$A(0) = 48.5-21*0 =48.5-0 =48.5$

$B(x) =42 -16.8x$

$B(0) = 42 - 16.8*0 =42-0 =42$

From the above computation:

$A(0) > B(0) \to 48.5 > 42$

Hence;

Cyclist A lives farther from the Orchard

5 0

3 years ago

If the radius of a cylinder is 18 meters and its height is 7 meters, the volume of the cylinder is approximately 72 cuble meters

seropon [69]

Answer:

Volume = πr2h

= π×182×7

= 2268π

= 7125.1321383417 meters3

3 0

3 years ago

Find the solutions to 2x^2-7x+3=0

GarryVolchara [31]

Answer:

X=½ or 3

Step-by-step explanation:

0=2x²-7x+3

0=(2x-1)(x-3)

0=2x-1 or 0=x-3

1=2x or 3=x

½=x

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3 years ago

What number is greater than 5.3 but less than 5.4

ArbitrLikvidat [17]

5.35 i’m not sure but hope this helps

5 0

3 years ago