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enyata [817]
3 years ago
10

Please help me answer this geometry question!

Mathematics
1 answer:
mihalych1998 [28]3 years ago
6 0
It either equals 12 OR 21... the problem isn't entirely clear...
so it IS
12 < x < 21
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3 years ago
Can anyone make a word problem for 2(4+n)
Anton [14]

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The sum of four and a number multiplied by two

Step-by-step explanation:

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A landscaper buys 1 gallon of plant fertilizer. He uses 1/5 of the fertilizer, and then divides the rest into 3 smaller bottles.
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5 0
2 years ago
Otis has $6.72, and he wants to buy some pencils that cost $1.12 each. How many pencils can he buy?
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2 years ago
Over which interval is the graph of f(x) = –x2 + 3x + 8 increasing?
vivado [14]
Hello there!

To find the increasing intervals for this graph just based on the equation, we should find the turning points first.

Take the derivative of f(x)...
f(x)=-x²+3x+8
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This means that the x-value of our turning point is 3/2. Now we need to analyze the equation to figure out the end behavior of this graph as x approaches infinity and negative infinity.
Since the leading coefficient is -1, as x approaches ∞, f(x) approaches -∞ Because the exponent of the leading term is even, the end behavior of f(x) as x approaches -∞ is also -∞.

This means that the interval by which this parabola is increasing is...
(-∞,3/2)

PLEASE DON'T include 3/2 on the increasing interval because it's a turning point. The slope of the tangent line to the turning point is 0 so the graph isn't increasing OR decreasing at this point.

I really hope this helps!
Best wishes :)
7 0
3 years ago
Read 2 more answers
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