Select the correct answer. Given
D = {x1 x is a whole number}
E = (xl x is a perfect square between 49 and 100)
F = {xl x is an even number between 10 and 20)
The expression D UF means
The expression Dn F means
The expression Dn E means
The expression En F means
The expression D (EU F) means

a

step-by-step explanation:

the answer is a

the area of a triangle is determined by the formula: base x height * 1/2

you'll need to assign a base to the triangle. based on the vertices given, the simplest base would be the line segment from (-2,1) to (2,1). the distance between any two numbers is found by just subtracting them. here, you should subtract the x values to find the distance of this side.

2 - (-2) = 4.

so the distance (aka the length of the base) is 4. the height of the triangle is the distance between the base and the highest point on the triangle which is (3,4). we should subtract the y values this time to find the height/distance.

4 - 1 = 3

so the height is 3.

base = 4

height = 3

hope this if needed hmu

the answer is 0.8in^2

hope you get it down chief.