Answer:
183.92 inch²
Step-by-step explanation:
To find the total amount of wrapping paper needed, you must find the Surface Area of the box.
Surface area of a rectangular prism is: A = 2(<em>wl</em> + <em>hl</em> + <em>hw</em>)
w = width = 3.8
h = height = 9.5
l = length = 4.2
Plug in the corresponding numbers to the corresponding variables.
A = 2(<em>wl</em> + <em>hl </em>+ <em>hw</em>)
A = 2((3.8 * 4.2) + (9.5 * 4.2) + (9.5 * 3.8))
Simplify.
A = 2((15.96) + (39.9) + (36.1))
A = 2(15.96 + 39.9 + 36.1)
A = 2(91.96)
Multiply.
A = 183.92
183.92 inch² is your answer.
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Answer:
Step-by-step explanation:
498 is approximately 500
12 is approximately 10
500/10 = 50
So, 498/12 is approximately 50.
Answer:
19.135
Step-by-step explanation:
Triangle = 1/2 b h
1/2 x 8.9 x 4.3 = 19.135
Answer:
and 
Step-by-step explanation:
The given ellipse has equation:
.
The center of this ellipse is (h,k)=(0,2)
We use the equation: 
to determine the foci.
The directrices are given by 
and 
The equation of the directrices are:
and
The correct answer is D
