Draw a triangle where the line connecting the two points is the hypotenuse. The difference in the X values between G and S is 5. The difference in the Y values is 4. Therefore One side of the triangle is five units long and one side is four units long. Using the Pythagorean theorem of A^2 + B^2 = C^2 we can plug-in 5 for A and 4 for B. Thus 25+16=C^2
C^2=41
C= square root of 41
Just find the vertex and then compare with graph
#a
Parabola opening upwards
Graph 3
#2
Vertex at (-3,0)
Graph IV
#3
Parabola opening downwards as a is -ve
Graph I
#4
One graph is left
Answer:
3. time = 6.4999 approximately 6.5 years
4. $2235.35
5. $ 3950
Step-by-step explanation:
4. amount of interest = final amount - principle= 7535.35 - 5300 = 2235.35
5. principle = final amount - interest earned = 4435.25 - 485.25 = 3950
Answer:
3.8
Step-by-step explanation:
1. Use sine rule
d/sin(D) = f/sin(F) (d=EF, f=DE=3)
2. cross multiply
d=f(sin(D)/sin(F)) = 3(sin(75)/sin(50))=3.783
