2 years ago

Area of a regular heptagon

Mathematics

1 answer:

Allushta [10]2 years ago

4 0

Answer:

32.71

Step-by-step explanation:

32xcot( $\frac{108°}{7} \\$ ) = 32.70521

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I had $20.00. My Mom gave me $10.00. My Dad gave me $30.00. My Aunt and Uncle gave me $100.00. I had another $1.00 How much did

Ainat [17]

Answer:

161 dollars

Step-by-step explanation:

What we know:

1. beginning value = 20 dollars

2. +10 dollars from mom

3. +30 dollars from dad

4. +100 dollars from aunt and uncle

5. +1 dollar

Add the values

20+10+30+100+1

= 161 dollars

I hope this helps!

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2 years ago

Read 2 more answers

if 5 litres of water are drawn from a cylindrical container of internal diameter 56cm find the drop in the level of water in the

AlexFokin [52]

Answer:

the drop in the level of water in the container is 2.03 cm

Step-by-step explanation:

The volume of a cylinder can be written as;

$V = \pi r^2h=\frac{\pi d^2h}{4} \\where;\\r = radius \\h = height \\d = diameter$

the change in height when the volume changes can be derived by differentiating the equation.

$dV =\frac{\pi d^2}{4} dh\\dh = dV\frac{4}{\pi d^2}$

substituting the given values;

$\left \{ {{dV=5 litres= 5000cm^3} \atop {d=56 cm}} \right.$

$dh = 5000\frac{4}{\pi * 56^2}\\dh = 2.03cm$

the drop in the level of water in the container is 2.03 cm

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2 years ago

A 20 ounce jar of spaghetti sauce costs 2.89.Find the cost per ounce

EastWind [94]

Answer:

$0.14

Step-by-step explanation:

I used a price per day ounce calculator

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2 years ago

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2 years ago

You estimate that a jar contains 68 marbles. The actual number of marbles is 60. Find the percent error

NemiM [27]

Answer:

Step-by-step explanation:

68-60%=8%

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2 years ago