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Effectus [21]
3 years ago
8

I think that the answer is b can you please help me out ?

Mathematics
2 answers:
MariettaO [177]3 years ago
6 0
Answer:
tan F = 40/9 which is the third option

Explanation:
Triangle DEF is a right-angled triangle. This means that we can apply the special trigonometric function.
This means that:
tan θ = opposite / adjacent
In the given:
θ = F
opposite is DE = 40
adjacent is DF = 9
Substitute in the above equation:
tan F = 40/9

Hope this helps :)

Ronch [10]3 years ago
4 0
The definition of tan(F) is opposite (40), divided by adjacent (9), so the answer is tan(F) = 40/9.  Therefore, your answer is C.

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The order of the steps differ for the two expressions because for the first expression, you multiply 5a and 3b first. Then, you add them together. However, for the second expression, you add what's inside the parenthesis first then multiply them. So, the order of the steps is the opposite of the other expression. 
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3 years ago
What is the domain and range of the relation shown?
Helga [31]

Answer:

A.

{-4 ≤ x ≤ 4}

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Step-by-step explanation:

We’ll domain is the amount of x values,

Range is the amount of y values

_______________________________

Domain:

Starts from -4 to 4

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I made the sign less than or equal to because the circle lines are solid.

Range:

This starts from -4 to 4 also.

{-4 ≤ y ≤ 4}

<em>Thus,</em>

<em>answer choices A. is correct</em>

<em />

<em>Hope this helps :)</em>

5 0
3 years ago
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8 0
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If we allow for any complex solution, then we can continue with the solution we ignored:

x^2=-16\implies x=\pm\sqrt{-16}=\pm i\sqrt{16}=\pm4i

6 0
4 years ago
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