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victus00 [196]
2 years ago
9

The function f(x) = -(x+4)^2+5 is written in vertex form and shows that the vertex of the graph of f is located at (-4,5)

Mathematics
1 answer:
Varvara68 [4.7K]2 years ago
7 0

There is only one value for x that makes (x+4)^2=0

<h3>Vertex form of an expression</h3>

Given the vertex form of the function expressed as:

f(x) = -(x+4)^2+5

If the function f(x) = 5

5 = -(x+4)^2+5


Subtract 5 from both sides

5 = -(x+4)^2+5\\-(x+4)^2= 5-5\\-(x+4)^2=0\\

Hence there is only one value for x that makes (x+4)^2=0

Learn more on vertex form here; brainly.com/question/525947

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In the figure, if m∠ABD = 120º, then m∠ADC =? º.
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The figure that this question is referring to is attached. We must use the Law of Sines to solve this question, which is as follows:

a/sinA = b/sinB = c/sinC

This applies to any triangle. We are told that ∠ABD = 120º. We are asked to solve for ∠ADC. We know that ∠ADC + ∠ADB = 180º. If we assign ∠ADC = x, then ∠ADB = 180<span>º - x. We can now apply the law of sines to this data.

35/sin120 = 30/sin(180-x)
sin(180-x) = (30/35)(sin120)
sin(180-x) = 0.742
sin-1(sin(180-x)) = sin-1(0.742)
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We have already assigned x = ∠ADC; therefore, ∠ADC = 132<span>º.</span>

4 0
2 years ago
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Step-by-step explanation:

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Divide the sum of 8/7 and-3/14 by their difference
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Sum:

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difference:

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Answer:

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