We can solve this problem by simply using ratio and
proportion. Let us call the height of the flagpole to be X. Therefore the ratio
and proportion would be:
3 ft is to 4 ft and X ft is to 72 ft
3 / 4 = X / 72
X = (3 / 4) * 72
X = 54 ft
<span>The height of the flagpole is 54 ft.</span>
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Answer:
34
Step-by-step explanation:
The two angles form a straight line which equals 180 degrees:
10x-20 + 6x + 8 = 180
Combine like terms:
16x -12 = 180
Add 12 to both sides:
16x = 192
Divide both sides by 16:
X = 192/16
X = 12
Step-by-step explanation:
ok, logic
all of them are parabolas
1st and 3rd are opening up, so they defenitely increase, so no
decraseing
the vertex hs to be be at x=-4
y=a(x-h)^2+k
h has to be -4
y=a(x+4)^2+k
the answer is 2nd one or f(x)=-(x+4)^2+4
