20% percent decrease; 64-80= -16. -16÷80= -0.2×100 =20%
K²+11k+30
(k+5)(k+6)
k=-5,-6
Answer:
y = 23
Step-by-step explanation:
Assuming the equation not below is y = mx + b form...
m = 4
x = 3
b = 11
y = 4(3) + 11
y = 12+ 11
y = 23
You can use the cosine rule for this - you might have to change some of the letters around for it to make sense though. Hope this helps!
Answer:
(−x)(16x2+1)
Step-by-step explanation:
−16x3−x
−16x3−x
=(−x)(16x2+1)
-16
