Answer:
x = ± 
Step-by-step explanation:
Given
2x² - 9 = 11 ( add 9 to both sides )
2x² = 20 ( divide both sides by 2 )
x² = 10 ( take the square root of both sides )
x = ±
← exact solutions
No order of operations is what you might know as Pemdas ,number of Operations is something iv'e never heard of.
<h2>
Answer:</h2><h2>Area of the kite = 80

, Area of traingle = 40

and height of the triangle, h = 5 cm</h2>
Step-by-step explanation:
A kite is broken into two triangles
Given the base of the traingle, b = 16 cm
Height of the triangle, h = 5 cm
Area of traingle = 
= 
= 40 
Area of the kite = area of triangle 1 + area of triangle 2
= 40 + 40
= 80 
Answer:
I think its D
Step-by-step explanation:
To get the answer you need to combine like terms.
4x+ x= 5x
2y- y= y
This gives you 4(5x + y)
Distribute the 4.
4*5x+ 4*y
20x + 4y
The answer is C.