By definition, we have to:

In plane geometry, a rectangle is a parallelogram whose four sides are at right angles to each other. Opposite sides have the same length.

There is a proof that a quadrilateral is a rectangle:

1) Its parallel sides are the same.

2) Its two diagonals are the same, and they bisect each other at the common midpoint

3) Any rectangle can be inscribed in a circle, two of whose diameters coincide with the diagonals of the rectangle.

4) If all the angles of a quadrilateral are right angles, then it is a rectangle

7 0

2 years ago

#19 please I’m literally failing math

ankoles [38]

Answer:

$51.12

Step-by-step explanation:

Hello there!

In number 19, we want to find the total price of a sweatshirt that costs $48 dollars but has 6.5% sales tax

Sales tax is a small percentage of the cost of an item that is added to items when they are being sold.

In this problem, 6.5% of the cost of the sweatshirt will be added to the cost of the sweatshirt in the form of sales tax. The price of the sweatshirt plus the amount in sales tax will be the total cost of the sweatshirt.

Translating that as an equation,

48 + 48*6.5%=total cost

You can calculate 48*6.5% as $\frac{48*6.5}{100}$ , which is equal to 3.12

So that means that $3.12 will be added to the cost of the sweatshirt.

Therefore,

48 + 3.12=<u>$51.12</u>, which will be the total cost of the sweatshirt, including sales tax

Hope this helps!

7 0

2 years ago

What are the intercepts of the graphed function?

shepuryov [24]

The answer is YON. x-intercept = (-1, 0)
y-intercept = (0, -3)

When you are writing an intercept, the other variable is 0.

For x-intercepts: (x, 0)
For y-intercepts: (0, y)

3 0

2 years ago