sosasubzero
12.07.2019 •
Mathematics
Arectangle is bounded by the x-axis and the semicircle y=sqrt(36-x^2) write the area a of the rectangle as a function of x
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Ответ:
we are given
A rectangle is bounded by the x-axis and the semicircle y=sqrt(36-x^2)
we can see that
length=L=2x
width=W=y
we know that
area of rectangle is length*width
now, we can plug values
..............Answer
Ответ:
Option D.
Step-by-step explanation:
Given information: KLMN is parallelogram, K(7,7), L(5,3), M(1,1) and N(3,5).
Diagonals of a parallelogram bisect each other.
If diagonals of a parallelogram are perpendicular to each other then the parallelogram is a rhombus.
If a line passes through two points and , then the rate of change is
Slope of KM is
Slope of LN is
The product of slopes of two perpendicular lines is -1.
Find the product of slopes.
The product of slopes of KM and NL is -1. It means diagonals are perpendicular and KLMN is a rhombus.
Therefore, the correct option is D.