Take a quick peek at
brainly.com/question/10417591that's how you test for the y-axis, x-axis and origin
recall your symmetry identities, cos(- θ) = cos(θ)
so, simply replace θ for those values, and if the resultant function looks exactly like the original, then it has that symmetry.
This one can besolved using system of equations. From the first statement we can assume that
length = 2 * width. The area of rectange equals product of it's width and length. By knowing that and following to the second statement we get the second equation:
(3 * width) * (length - 5) = width * length + 4. Let's mark the
width as
x and the
length as
y and write down our equations system:
Using substituion method, lets replace every
y with
2x within second equation and solve it:
Now lets find the discriminant in order to solve this quadratic equation:
The second root is negative, so we ignore it as
x represents width which can't be negative.
Now, using found root, let's find
y value from the first equation:
So,
the width is equal 4 (and the length is equal 8).
Answer:
A. 4
Step-by-step explanation:
lol
Answer:
$103.75
Step-by-step explanation:
$1,245 devide by 12
Answer:
B.12
Step-by-step explanation:
the squiggly line over top it means they are about equal or equal