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lions [1.4K]
3 years ago
8

Answer the questions below and show all of your

Mathematics
1 answer:
defon3 years ago
3 0

Answer:

6.75

Step-by-step explanation:

729=1/2*216h

729=108h

h=6.75

I think idrk

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4) Find the center and radius of the circle.<br>x2+ y2 – 81 – 2y=-16​
liq [111]

Answer:Center: (0,1)

Radius: √66

Step-by-step explanation:

6 0
4 years ago
Each cone of the hourglass has a height of 18 millimeters . the total height of the sand within the top portion of the hour glas
statuscvo [17]
Let

Vco------------------- >Volume cone
Vcy------------------ >Volume cylinder 
r= 8mm
hco----------- > height of cone=18 mm
hcy------------ > height of cylinder =54-18=36 mm

then

Vco=π*r² *hco/3--------- > π*8² *18/3=π*384 mm³
Vcy=π*r² *hcy--------- > π*8² *36=π*2304 mm³

the total cubic millimeters of sand=Vco+Vcy=π*384+π*2304=π*2688

if 10π cubic millimeters --------------------- > 1 seg
π*2688--------------------------------- X

X=π*2688/10π=268.8 seg

the answer is 268.8 seg
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4 years ago
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4 years ago
URGENT PLEASE HELP I AM GIVING AWAY MANY POINTS I HAVE ATTACHED THE QUESTION
Novosadov [1.4K]

Answer:

a) x=0, x=1

b)x=0, x=4/3

Step-by-step explanation:

I didnt use the graph, just used algebra. For part a, you can find the answers using the graph by looking at the value of x when y = whatever value they give.

A)

3x²-3x+2=2

3x²-3x+0

x(3x-3)=0

For the product of two things to equal zero, one of them has to be zero. For example, if ab=0, then either a or b (or both) are zero.

Therefore..

x=0

or 3x-3=0, ∴x=1

b)

3x²-3x-1 = x-1

3x²-4x=0

x(3x-4)=0

∴x=0, x=4/3

3 0
3 years ago
Read 2 more answers
Determine whether the relation is a function.<br><br> {(5, 0), (8, 1), (1, 3), (5, 2), (3, 8)}
mariarad [96]
It is a function because all of the inputs have exactly one output. 
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4 years ago
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