The answer is C because all the other answers are false. A rhombus does not have right angles, which is a characteristic of a rectangle. A rhombus does not have right angles - it has two obtuse and two acute. All rectangles are not squares because the sides need not have equal length. That leaves C. Parallelograms have 4 sides, which makes them a variety of quadrilateral
Answer:
8/20 or 2/5
Step-by-step explanation:
So, first, there are 20 cards total.
Out of those 20 .cards, only 8 are prime.
(1, 3, 5, 7, 11, 13, 17, 19)
So, the fraction would look like 8/20, which when simplified,
2/5.
Hope this helps!!
Answer: Reflection across x=2.
Step-by-step explanation:
x=2 is the perpendicular bisector of segment UU'.
Answer:
Step-by-step explanation:
The area of a rectangle can be calculated with this formula:
Where "l" is the length and "w" is the width.
The area of a triangle can be found using the following formula:
Where "b" is the base of the triangle and "h" is the height.
You can observe that the figure is formed by three different rectangles, Using the formulas, you ge that the area of each rectangle is:
The triangles are equal, then, using the formula shown above, you get that the area of each of them is:
Adding all the areas, you get that the surface area of the figure is:
Answer:
Step-by-step explanation:
It would be easier to just show you.
Because we're using variables, I'm going to plug in a random set of numbers to stand for x and y.
(x+y)^2
(2+4)^2=36
vs.
x^2+y^2
2^2+4^2=20
The difference is because, following the order of operations, in the first situation you must first take care of what is in the parenthesis, which means you add x and y together-then you multiply that combined number by the 2nd power. Whereas in the second situation, you multiply x and y by the 2nd power separately, and then add the product of that together. So opposite order. In the first situation you add, then multiply. In the second, you multiply then add.