Answer:
The longest side of the cross-section is:
Step-by-step explanation:
Given
See attachment for pyramid
Required
The longest side of the cross-section
The base of the pyramid is a rectangle with the following dimension (in terms of length)
For the cross-section, we have:
Since both are parallel, then the following relationship exist between both
So, we have:
Express as fraction
Make x the subject
Answer:
2.448
Step-by-step explanation:
thousandth is the third number place after the decimal point
We can also think of this problem as f(x) + g(x). Therefore, all we need to do is add the two functions together.
x + 4 + 3x^2 - 8 || Write it out!
3x^2 + x + 4 - 8 || Rearrange in order of decreasing exponents. No need to combine and rearrange all at once!
3x^2 + x - 4 || Combine like terms!
Hope this helps!! :)
The right answer is -3.
please see the attached picture for full solution
Hope it helps
Good luck on your assignment
Answer:
<em><u>1408</u></em> square tiles
Step-by-step explanation:
She is basically tiling the surface area of a rectangular prism that is 24 by 16 by 8 inches long. A rectangular prism has 6 sides total. Here, the sides are:
24 by 16
24 by 16
16 by 8
16 by 8
24 by 8
24 by 8
So basically, Each length is multiplied by another length 2 times each. We need to add all of these lengths together:
(24 * 16) + (24 * 16) + (16 * 8) + (16 * 8( + (24 * 8) + (24 * 8) = (384 + 384) + (128 + 128) + (192 + 192) = 768 + 256 + 384 = 1408
1,408