a culinary student decorates a 8-in. -diameter round cake. What is the approximate are of the top of the cake?
2 answers:
Answer:
The top of the cake is 25.12 in²
Step-by-step explanation:
Hello!
So you are dealing with a circumference question! And because the diameter is 2x the radius, we know the radius is actually 4.
Lets write out the circumference formula and use that to help us.
c = 2 x r
pi is 3.14....
But lets use 3.14
c = 2(3.14) x 4
Plus this into a calculator and we get 25.12 as the answer.
Answer:
≈50.265
Step-by-step explanation:
You first have to find the radius since the formula for the area of a circle is A=.
Since the radius is half the diameter, just divide 8 by 2 which will give you 4.
r=4
Now plug in the radius into the formula and simplify.
A=
≈50.265
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I believe the answer is 3 4/5.... I could be wrong...
Hope this helps!:P
Answer:
Step-by-step explanation:
1. X + y
Putting values of x and y
-7 + (-3)
= - 10
2. xy
Putting values of x and y
(-7)(-3)
= 21
3. x2 + y2
Putting values of x and y
= (-7)2 + (-3)2
= 49 + 9
= 58
Answer:
C 2/3
Step-by-step explanation:
I THINK IDK IF IAM RIGHT HOPE THIS HELP..
M = (y2 - y1)/(x2 - x1)
m = (-1 - 1)/(-2 + 4)
m = -1