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wlad13 [49]
3 years ago
14

What is the domain of this function

Mathematics
2 answers:
Sphinxa [80]3 years ago
7 0

The domain is the set from which the function "starts", i.e. it is the set of the inputs you feed the function with.

In this case, the function starts from the set \{-2, 2, 3, 4\} and lands on the set \{3, 9, 12\}

So, the domain is the set \{-2, 2, 3, 4\}.

Ksivusya [100]3 years ago
4 0
The numbers on the left, so -2,3,4, and 2
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Select which type of polygon this figure is.
Naya [18.7K]

Answer:

D

Step-by-step explanation:

A is not correct. A trapezoid does not have 4 equal sides.

B is not correct. Same reason as A even if the trapezoid is isosceles.

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D is the correct answer.

E is incorrect. A rectangle has 2 pairs of equal sides and two sets of opposite sides that are equal and parallel. It also has at least 1 right angle.

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Determine the length of the leg of a 45o – 45o – 90o triangle with a hypotenuse length of 15 inches. ( ANSWER NEEDS TO BE IN RED
SIZIF [17.4K]

Answer:

The lenghts of both legs: \frac{15\sqrt{2}}{2}\ inches

Step-by-step explanation:

By definition, when a triangle has angles that measures 45°, 45° and 90°, its legs are congruent.

Then, knowing the lenght of the hypotenuse, we can find the lenght (in inches) of  any leg of the given triangle by applying the Trigonometric Identity sin\alpha=\frac{opposite}{hypotenuse}:

sin(45\°)=\frac{leg}{15}\\\\leg=\frac{15}{\sqrt{2}}

Finally, simplifying, we get:

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