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miskamm [114]
2 years ago
12

Which expression is equivalent to (2x + 3)2 – 5?

Mathematics
1 answer:
ddd [48]2 years ago
5 0
4x+6-5
turns into 4x+1
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globe has a diameter of 12 inches. What is the volume of the globe? Use 3.14 for pi. Round your answer to the nearest hundredth
vesna_86 [32]
113.09 because you divide the 12 by two because the rule 

4 0
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on a piece of paper graph the system of equations then determine which answer choice matches the graph you drew and identify the
grigory [225]

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the solution is (-2,3)

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Miss Howe has 3/5 of a chocolate candy bar she eats 3/4 of it later as a snack what fraction of the whole candy bar did she cons
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9/20

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6 0
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What is the circumference of the circle shown below? (Round your answer to the nearest tenth.) A. 33.0 B. 66.0 C. 346.4 D. 206.2
Afina-wow [57]

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8 0
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
f'(x)=-2x+3

Set f'(x) equal to 0...
0=-2x+3
-3=-2x
3/2=x

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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