Answer:
<h2>B. 20.5 square units</h2>
Step-by-step explanation:
Area of a triangle = 1/2 * Base * Height
For the given triangle, the value for the sides will be the distance between adjacent points on the triangle. Look at the attached file for the explanation of the diagram.
Using the formula for finding the distance between two points to get the base and the height of the triangle.
D = √(x2-x1)²+(y2-y1)²
For side AB where A = (-3, -4) and B(2, 0)
AB = √(2-(-3))²+(0-(-4))²
AB = √5²+4²
AB = √25+16
AB = √41
AB = Height
For side BC where B = (2, 0) and C = (6, -5)
√(x2-x1)²+(y2-y1)²
BC = √6-2)²+(-5-0)²
BC= √4²+(-5)²
BC = √16+25
BC= √41
BC = base of the triangle
Area of the triangle = 1/2 * √41 * √41
Area of the triangle = 1/2 * 41
Area of the triangle =20.5square units
Answer:
y=3/3x+3/2
Step-by-step explanation:
(-5,-6)(1,3)
x1y1 x2y2
y2-y1/x2-x1
m=3/2
b=3/2
Answer:
383.5
Step-by-step explanation:
the tenth is the first number right of the decimal point
Answer:
The scale would be 12.5 centimeters
Step-by-step explanation:
It’s pretty easy
since it’s 1 cm to 80m there’s two ways to solve this but the fastest way is to find the unit rate of the scale
So 1000m/80m to find the cm
so the answer would be 12.5cm.
Check: 12.5 (80)=1000m is correct
The easier way but longer way is to create a proportion
so let’s do cm/m
so 1cm/80m
then write a proportion
1cm/80m=X cm/1000m
Cross multiply and you’ll get 1000=80x
solve the equation and you’ll get 12.5cm also
(remeber don’t change the way if the centimeter is the numerator the the second fraction, the centimeter is also the numerator same with the meters where if it’s the denominator then the other fraction is also a denominator)