Hello,
Line 1 is passing through (-4,3), (-2,7) has a slope of (3-7)/(-4+2)=2
Line 2 is passing through (2,9), (4,1) has a slope of (9-1)/(2-4)=-4
One other way:
y=9-1/2 x²
y'=-x
gradient 1=-(-2)=2 for point (-2,7)
gradient 2=-(4)=-4 for point(4,1)
Answer:
It's not clear on what it means but the information given it would just be 20*3=60
Step-by-step explanation:
Answer:
About 10.4 cm
Step-by-step explanation:
By the Law Of Sines:

Hope this helps!
It’s “725”, just subtract it by 65..