Answer:
x< -2
Step-by-step explanation:
The dotted line is at x = -2
Since it is a dotted line there is no equals sign. It is shaded to the left, which means less than
x< -2
Answer:
40cm
Step-by-step explanation:
here the ratio is 10:12 so if we get it to proprortion it becomes
= 10 : 12 :: ? : 48
so it becomes
=10×48 :: 12×?
=480 ÷ 12
= 40cm
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Answer:
y = - 1/5x - 7
Step-by-step explanation:
y = 5x+4. Slope: 5
Slope of the perpendicular line: -1/5
(5,-8)
y - - 8 = - 1/5 (x - 5)
y+8 = -1/5x + 1
y = - 1/5x +1-8
y = - 1/5 x - 7
The volume of a square pyramid is:
V = (1/3) LxWxH
From the problem we know that:
H = L - 9 and
W = L
Substituting this to the formula of the volume to generate a polynomial function:
V = f(L) = (1/3) L x L x (L - 9)
Expanding:
f(L) = L³/3 - 3L²
