Hello :
the equation 3x^2+4x-7=0 has 2 solutions because : ac <span>< 0
a = 3 b=4 c= -7
</span>Δ = b²-4ac....... b² ≥ 0 and -4ac > 0 ..... (ac < 0 )
coclusion : Δ>0.....(2 solutions)
Answer:
d)96π
Step-by-step explanation:
Given:
Cyliner with radius,a= 4
Height b=8
Surface area of cylinder, A=2πrh+2πr^2
=2π(rh+r^2)
=2π(4(8) + 4^2)
= 2π(32+16)
=2π(48)
=96π !
Answer:
C
Step-by-step explanation:
it adds by 8, and if y is 14, 22, etc, then 8 would be the y in y = etc.
and if it starts ith 14, it adds by 8
Answer:
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11
subtract 9 to both sides
