3x² - 8x > 11
3x² - 8x - 11 > 11 - 11
3x² - 8x - 11 > 0
x > <u>-(-8) +/- √((-8)² - 4(3)(-11))</u>
2(3)
x > <u>8 +/- √(64 + 132)</u>
6
x ><u> 8 +/- √(196)
</u> 6
x > <u>8 +/- 14</u>
6
x > <u>8 + 14</u> x > <u>8 - 14</u>
6 6
x > <u>20</u> x > <u>-6</u>
6 6
x > 3.33 x > -1
<u />
Answer:
x = 10.6 (Rounded to the tenth)
y = 15
Explanation: In any type of polygon, it adds up to 360. Opposite angles add up to 180.
The area of a 2D form is the amount of space within its perimeter. The correct option is D.
<h3>What is an area?</h3>
The area of a 2D form is the amount of space within its perimeter. It is measured in square units such as cm², m², and so on. To find the area of a square formula or another quadrilateral, multiply its length by its width.
The area of the L block will be the sum of the area of A and B. Therefore, the area can be written as,
Area of L block = Area of A + Area of B
= (7×2) units² + (1 × 5) units²
= 14units² + 5units²
= 19units²
Hence, the correct option is D.
Learn more about Area:
brainly.com/question/1631786
#SPJ1
Answer:
The number of possible color combinations that she can make = 6
Step-by-step explanation:
The number of available colors = 3
The question states that Maria only uses a color on each shape at a time,
The number of possible color combinations that she can make = 3!
n! = n*(n -1)*(n-2)*......*1
3! = 3 * 2 * 1
3! = 6 combinations
The number of possible color combinations that she can make = 6