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2 years ago

100 POINTS The vertices of a rectangle are (3, 7), (6, 7), (6, 1), and (3, 1). Find the perimeter of the rectangle.

Mathematics

1 answer:

kirill115 [55]2 years ago

6 0

Perimeter of the rectangle = 18 units

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In 2011, U.S. exports of goods and services are $2,094 billion and imports of goods and services are $2,662 billion.

daser333 [38]

Answer:

$-568 billion dollars.

Step-by-step explanation:

2,094 - 2,662= -568.

Hope this helps and good luck!

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2 years ago

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Step-by-step explanation:

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2 years ago

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Sally finds a coin with a radius of 1.5 centimeters and a thickness of 0.25 cm. It has a measured mass of 18.54 grams. How can S

mote1985 [20]

Answer:

Silver

Step-by-step explanation:

Find the volume of the coin

Volume of a cylinder

$\textsf{V}=\sf \pi r^2 h \quad\textsf{(where r is the radius and h is the height)}$

Given:

r = 1.5 cm
h = 0.25 cm

Substituting given values into the formula to find the volume:

$\sf \implies V=\pi (1.5)^2(0.25)$

$\sf \implies V=0.5625 \pi \:cm^3$

Find the density of the coin given it has a measured mass of 18.54 g

Density formula

$\sf \rho=\dfrac{m}{V}$

where:

$\rho$ = density
m = mass
V = volume

Given:

m = 18.54 g
$\sf V=0.5625 \pi \:cm^3$

Substituting given values into the density formula:

$\implies \sf \rho=\dfrac{18.54}{0.5625 \pi}$

$\implies \sf \rho=10.49149385\:g\:cm^{-3}$

Given:

$\textsf{Density of Lead}=\sf 11.3\:g\:cm^{-3}$

$\textsf{Density of Silver}=\sf 10.49\:g\:cm^{-3}$

Therefore, as $\sf \rho=10.49\:g\:cm^{-3}$ the coin is made from silver.

4 0

1 year ago

What is the answer? Please explain. (5x^2 -3) + (2x^2 - 3x^3)

ale4655 [162]

Answer:

(5x^2-3) +(2x^2-3x^3)

=3x^3+5x^2+2x^2-3

= 3x^3 +7x^2 -3

Step-by-step explanation:

hope this is correct cuz I'm not an expert...

5 0

2 years ago

100 POINTS The vertices of a rectangle are (3, 7), (6, 7), (6, 1), and (3, 1). Find the perimeter of the rectangle. ​

100 POINTS The vertices of a rectangle are (3, 7), (6, 7), (6, 1), and (3, 1). Find the perimeter of the rectangle.