Answer:
Surface area of a cone = 461.58 In²
Step-by-step explanation:
Surface area of a cone = πrl + or
Surface area of a cone = πr(r+l)
Where r = radius
Radius= diameter/2
Radius=14/2
Radius= 7 inch
And l slant height= 14 inch
Surface area of a cone = πr(r+l)
Surface area of a cone = π*7(7+14)
Surface area of a cone = 7π(21)
Surface area of a cone = 147π
Surface area of a cone = 461.58 In²
Sector area = (central angle / 360) * PI * radius^2
sector area = (210 / 360) * PI * 2.3^2
sector area = (7 / 12) * PI * 5.29
<span><span><span>sector area = 9.6944313302
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<span>sector area = 9.7 square meters (rounded)
Source:
http://www.1728.org/radians.htm
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15 percent of 28.50 is 4.275
So 28.50 + 4.275 = 32.775
So $32.77
Answer:
D
Step-by-step explanation:
One thing is you need to get x on one side and y on the other :)
8x-1/3y=16
Just like any equation you subtract 8x
8x-1/3y=16
<u>-8x -8x
</u>-1/3y=16-8x
Now you want y all alone. So you divide. To me I think you divide by -3. But you might want to check and divided by
by -1/3 (just in case)
<u>-1/3y=16-8x
</u> -3
y=-5.33(3 is repeating) - 2.6666667x
I really do this help you out! :D
