3 years ago

Comparing Rational Numbers

Mathematics

1 answer:

qaws [65]3 years ago

5 0

Answer:

i don't know

Step-by-step explanation:

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Andy is building a model of a square pyramid for a class project. The side length of the square base is 11 inches and the slant

Wewaii [24]

Answer:

The surface area of the model pyramid is $451\ in^{2}$

Step-by-step explanation:

we know that

The surface area of the pyramid is equal to

$SA=B+LA$

where

B is the area of the base of the pyramid

LA is the lateral surface of the pyramid

Find the area of the base B

$B=11^{2}=121\ in^{2}$ -----> is a square

Find the lateral surface area of the pyramid LA

we know that

The lateral surface area is equal to the area of its four triangular faces

$LA=4[\frac{1}{2}(11)(15)]=330\ in^{2}$

Find the surface area of the pyramid

Substitute the values

$SA=121+330=451\ in^{2}$

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Step-by-step explanation:

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4 years ago

Solve the equation E = IR for I

alexgriva [62]

Answer:

$I=\frac{E}{R}; R\neq 0$

Step-by-step explanation:

$E=IR\\\\IR=E\\\\\frac{IR=E}{R}\\\\ \boxed{I=\frac{E}{R}; R\neq 0}$

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JulsSmile [24]

The answer's at the bottom. Let me know if you have any questions

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