3 years ago

It’s number 5 please help

1 answer:

6 0

8x+100 with x representing the number of classes attended. For Ms.Wiggins, the equation would be 8(18)+100. You would multiple 8 x 18 getting 144+100. You add 144+100 to get $244 for Ms.Wiggins.

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What is the perimeter of rhombus WXYZ? units 12 units units 20 units

timama [110]

Let O be the intersection of the vertical line through ZX, and the horizontal line through YW.

The coordinates of this point are clearly (5, 2) as it is at the same x-coordinate as X and Z, and y-coordinate as Y and W.

So, YZO is a right triangle. By the Pythagorean theorem:

$ZY= \sqrt{{YO}^2+{OZ}^2}= \sqrt{2^2+3^2}= \sqrt{4+9}= \sqrt{13}$ .

Since all sides of a rhombus are equal, then the perimeter is :

$P(XWZY)=4 \sqrt{13}$ units.

Answer: third choice.