Answer:
681 square inches
Step-by-step explanation:
The surface area of a rectangular prism of dimensions L, W, and H is given by ...
A = 2(LW +H(L+W))
The surface area of the given box is ...
A = 2(12·3 +18.25(12 +3)) = 2(36 +273.75) = 619.5 . . . square inches
The amount of wrapping paper required is 10% more than this value, so is ...
paper required = (1 +.10)(619.5) = 681.45 ≈ 681 . . . square inches
Answer:
135 ft²
Step-by-step explanation:
Heres a cool little trick! if you cut off one side straight down, take for example the triangle to the right, and take it over to the left side, it makes a square! so then you just have to multiply 9 by 15! Hope This Helps! :P
Answer:
it is 105
Step-by-step explanation:
but I'm not 100% sure
Answer:
Step-by-step explanation:
The opposite operation of squaring is taking the square root.
We know that the denominator of a fractional power is the index of the corresponding root:
![\displaystyle x^\frac{1}{n}=\sqrt[n]{x}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20x%5E%5Cfrac%7B1%7D%7Bn%7D%3D%5Csqrt%5Bn%5D%7Bx%7D)
For n=2, we don't usually write the index in the root symbol:
In the case of this problem, ...
Answer:
2
Step-by-step explanation:
∵a+1,2a+1,4a-1 are in A.P.
2(2a+1)=a+1+4a-1
4a+2=5a
5a-4a=2
a=2
