Answer:0.21 the large box
Step-by-step explanation: find unit rate for each box.
$1.25/5=$.25 - small
$2.07/9=$.23 - medium
$3.15/15=$.21 - large
Hello!
In math, there is always something called the discriminant. This is represented by the equation
, when a quadratic =
. The discriminant tells you what roots an equation has. A discriminant of over 0 represents 2 real roots, a discriminant of 0 = 1 real root, and a discriminant of <0 is 0 real roots (2 complex roots)
Now, substitute in the values and solve. In this equation, a = 5, b = 2, c = 1.




Therefore, the discriminant is -16. This means that the equation has no real roots, and has 2 complex roots. Therefore, your answer is D.
Hope this helps!
Answer:
its a simple for me
Step-by-step explanation:
2+144 i
<u>Let's take this step-by-step:</u>
The mathematical name of this shape is a <u>right trapezoid </u>
⇒ <em>It is a trapezoid since the image shows a quadrilateral that </em>
<em> has two parallel sides and two non-parallel sides. It is a right </em>
<em> trapezoid because it has two rights angles</em>
<em> </em>The cube has <u>6</u> faces
⇒ <em>faces are the individual flat surfaces of an object</em>
<em> ⇒by looking at a picture of a cube, we see it has 6 sides</em>
<em> ⇒ (I attached an image of a cube below)</em>
Hope that helps!