Answer: D. Square
The cross section is shown as the shaded region. There are four sides to the shaded figure, so the cross section is a quadrilateral. This rules out choice C. We can also cross choice B off the list because cross sections of 3D figures are 2 dimensional.
Choice A is ruled out as well because we have both pairs of opposite sides that are parallel. The only thing left is choice D. This is true assuming we have a square prism. Any cube is a square prism that has its height equal to the width and length.
2/3 = x / 1899
3x = 3798
x = 3798/3
x = 1266....# of yes votes
total votes (1899 + 1266) = 3165 <==
Answer:
Xbox ONE
Step-by-step explanation:
(and Series X)
Answer:
x = -2 + √19, x = -2 - √19
Step-by-step explanation:
Equation: x² + 4x = 15
Complete the square of ax² + bx: x² + 4x <em>+ 4</em>
Insert into equation (with balancing): x² + 4x + 4 = 15 <em>+ 4</em>
Change form: <em>(x + 2)²</em> = 15 + 4
Combine like terms: (x + 2)² = 19
Square root: x + 2 = ±√19
Isolate x: x = -2 ± √19