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3 years ago

Multiply the following using the vertical multiplication method

1 answer:

lisabon 2012 [21]3 years ago

3 0

Dear, MinaBina0621 I would be happy to help. But due to the circumstances that there is no problem I can't do anything if you have questions add me or message me some questions

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What is the general form of the equation for the given circle centered at O(0, 0)? The center is (0,0) the point on the circle i

FromTheMoon [43]

Hello,

Radius= √((4-0)²+(5-0)²)=√41
Equation of the circle : x²+y²=41

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3 years ago

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43,785 to the nearest ten thousand

castortr0y [4]

Answer:

40,000

Hope it helps .

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2 years ago

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When the mountain was last measured, its height was 3,570 meters. Now it is 3,927 meters. What is the percent of increase in the

Elina [12.6K]

Answer:

110%

Step-by-step explanation:

3,927/3,570

=1.1

=110%

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3 years ago

Which angle is vertical <EFA

zimovet [89]

Angles that are vertical are basically neighbors that are across from each other (numbers across from each other).

Angle <CFD would be vertical to <EFA.

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3 years ago

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.

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1 year ago