Answer:
d
Step-by-step explanation:
Using the Cosine rule to find ∠ A
cosA = 
= 
= 
= 
, then
∠ A = 
( ) ≈ 84.9° ( to 1 dec. place )
Answer:
The slope of Function A is greater than the slope of function B while the y-intercept of Function B is greater than the y-intercept of function A.
Step-by-step explanation:
Function A is f(x) = 5x + 2
The slope is 5 and the y-intercept is (0, 2).
Function B. The slope is (5-2) / (0- -1) = 3.
also (8-5) / (1 - 0) = 3
The slope is 3.
The y-intercept is at (0, 5) because one point on the graph is (0, 5).
Point distance formula:
d=√((x_2-x_1)²+(y_2-y_1)²)
Substitute
d=√((3-(-3))²+(2-(-1)²)
Simplify
d=√((6)²+(3)²)
d=√(36+9)
d=√(45)
<h2><u><em>
d=3√(5)</em></u></h2>
<u><em></em></u>
-Hunter
The correct answer would be the 3rd one because the number simplified equals that
3.9 is the estimated square root of 15 to one decimal place
