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Vanyuwa [196]
3 years ago
12

Hello, i was confused in this if anyone could help me with it

Mathematics
1 answer:
umka2103 [35]3 years ago
8 0

Answer:

hmmmmmm Okay From what question?

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A sphere has a diameter of 24 units. What is its volume in cubic units?
DiKsa [7]
Hello!

The equation to find the volume of a sphere you use the equation

\frac{4}{3}  \pi  r^{3}

r is radius which is half the diameter

put in 3.14 for pi and 12 for r

\frac{4}{3} *3.14* 11^{3}

This gives us the answer of 7234.56 cubic units

Hope this helps!
4 0
3 years ago
Read 2 more answers
Find the measures of the angles formed by​ (a) two consecutive radii and​ (b) a radius and a side of a regular dodecagon.
IgorLugansk [536]
See the picture to better understand the problem

we know that
A regular dodecagon has 12 sides
Central angle of a regular polygon is an angle whose vertex is the center of the polygon with two consecutive radii
thus 
the measure of a central angle is
m∠AOC=360/n
where n is the number of sides
so
m∠AOC=360/12-----> 30°

therefore

the answer Part a) is 
<span>the measure of the angle formed by two consecutive radii is 30 degrees

Part b) 
we know that
OAC is an isosceles triangle
so
OA=OC
m</span>∠OAC=m∠OCA

<span>the sum of the internal angles of a triangle is 180 degrees
</span>so
180=2*m∠OAC+m∠AOC-----> m∠OAC=[180-30]/2----> 75°

the answer part b) is 
<span>the measure of the angle formed by a radius and a side is 75</span>°

8 0
3 years ago
Use synthetic division to solve (3x^4+6x^3+2x^2+9x+10)/ (x+2)
zhenek [66]

Hello!

I believe the answer is (3x^2 - 3x + 5) • (x + 1)

I hope it helps!

7 0
4 years ago
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I am 40 what is 25% of me
Paha777 [63]
10 because 25 goes into 100 4 times 40 divided by 4=10
5 0
4 years ago
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If wallpaper costs $1.25 per squared foot, how much will it cost to put mew wallpaper in a room with area dimensions of 17 ft lo
AleksandrR [38]

The area of the room is :

\begin{gathered} A=17\cdot16 \\ A=272 \end{gathered}

and if the cost is 1.25 per square foot then the total cost will be:

272\cdot1.25=340

is $340 dollars

6 0
1 year ago
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