Answer:
81×2=162
Step-by-step explanation:
81+81=162
you can add or do out the multiplication. or even do it in your head.
Factor out 2
2(3a^2-4a-15)
hmm
trial and error
nope
fancy I-forgot-the-name way
multiply 3 and -15 to get -45
find y and t such that yt=-45 and y+t=-4
tricky
hmm
-9 and 5
split -4a into -9a and 5a
2(3a^2-9a+5a-15)
split and factor
2[(3a^2-9a)+(5a-15)]
factor oout common factors
2[3a(a-3)+5(a-3)]
epic reverse distribute, remmber ab+ac=a(b+c) the (a-3) is theh a part
2[(a-3)(3a+5)]
something
(2)(a-3)(3a+5)
(2)(3a+5)(a-3) is factored form
Base + lateral area:
Base = pi*6^2 = 36*pi
Lateral area=pi*r*l (nice formula) = pi*6*12 = 72*pi
TOTAL = 108*pi = 339.29200658769764
Nearest hundredth: 339.29
Answer:
D.3x²+x-6
Step-by-step explanation:
4x²-x²+3x-2x-2-4
3x²+x-6
Answer:
no yes no i dumb
Step-by-step explanation: