Answer:
<h3>
<u>7. Ans ;</u></h3>

<h3>
<u>8</u><u>.</u><u> </u><u>Ans</u><u> </u><u>;</u></h3>
<u>
</u>
Step-by-step explanation:
<h3>
<u>7. Ans ;</u></h3>

So ;

<h3><u>
8. Ans ;</u></h3>

So ;

I hope I helped you^_^
RO divides the rectangle into two congruent right triangles.
The area of the one triangle is equal half area of the rectangle.
Calculate the area of rectangle:

The area of right triangle:

Use the Pythagorean theorem to calculate the length of RO:

The formula of an area of this right triangle is:

Therefore we have the equation:

Find the mean for the data set. 7, 6, 7, 7, 7, 4, 4, 6, 5, 5, 7
saul85 [17]
Answer:
5.909
Step-by-step explanation:
Its a. An enlargment on a scale of 3/1.
Number 1 is A, number 2 is B number three is D