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Firdavs [7]
3 years ago
11

A box without a top is made from a rectangular piece of cardboard, with dimensions 40 inches by 32 inches, by cutting out square

corners with side length x inches.
Which expression represents the volume of the box in terms of x?


(a) (40−2x)(32−2x)x

(b) (40−x)(32−x)x

(c) (2x−40)(2x−32)x

(d) (40−2x)(32−2x)4x
Mathematics
2 answers:
vovikov84 [41]3 years ago
5 0
The correct answer would be Choice A.

The find the volume of the box, you need to multiply the L by W by H. Both the length and width have been reduced by 2 x's. And the height will be just x.

Therefore, LWH becomes (40 - 2x)(32 - 2x)x


kvasek [131]3 years ago
4 0

Answer:

(a) (40−2x)(32−2x)x

Step-by-step explanation:

A box without a top is made from a rectangular piece of cardboard, with dimensions 40 inches by 32 inches, by cutting out square corners with side length x inches. both sides are cut by x inches

Length of the box = 40 -x-x= 40-2x inches

Width of the box = 32-x-x= 32-2x inches

height of the box is the side length = x inches

Volume of the box = length * width * height

= (40-2x)(32-2x)x

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Frequency (y) varies inversely with wavelength (x). Find the frequency (measured in THz ) of blue light if its k value is 175,72
horsena [70]

We have been that frequency (y) varies inversely with wavelength (x).

We know that two inversely proportional quantities are in form a=\frac{k}{b}, where a is inversely proportional to b and k is constant of variation.

Our required equation would be y=\frac{k}{x}.

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8 0
3 years ago
107,600 115,220 104,910 median, mode, mean
san4es73 [151]

Answer:

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Step-by-step explanation:

Given this set of numbers: 107, 600,  115, 220,  104, 910, find out these measures of central tendency:

1. Mean = 107 + 600  + 115 + 220 + 104 + 910/6 = <u>342.7</u> (Rounding to the nearest tenth)

2. Median. In this case, we calculate it as the average between the third and the fourth element, this way:

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2 years ago
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Varvara68 [4.7K]

Answer:

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You have the right approach, but you wrote 3*square root(x-9)

What you need is cube root (x-9).

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2 years ago
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