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3 years ago

A circle had a circumference of 28.26 units what is the diameter of the circle

Mathematics

1 answer:

kolezko [41]3 years ago

8 0

Answer:

Step-by-step explanation:

3.14 divided by 28.26 = 9

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28 32 21 22 The mean is 24.4 what is the 5th number

Archy [21]

The awnser has to be 26??

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2 years ago

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Tim's Tamales sold 2,194 tamales for $1.25 each. What were the earnings?

allochka39001 [22]

Answer:

2,742.50

Step-by-step explanation:

2194 x 1.25 = 2742.50

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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

PANDEMIC: How do víruses spread through a population?

soldi70 [24.7K]

Answer:

there is no table, just a list of numbers. we need a table or maybe a ss for reference

3 0

2 years ago

How do I solve this one

just olya [345]

6/7Y - 18/28 =-15/14
First, let's get a common denominator
24/28Y - 18/28 =-30/28
Move your terms to isolate Y
24/28Y=-12/28
Multiply by 28 on both sides
24/Y=-12
Times both sides by Y, then divide by -12
24/-12=Y
Simplify
-2=Y

I hope this Helps!

6 0

2 years ago