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allochka39001 [22]
3 years ago
5

Which two-dimensional shapes are needed to build the pentagonal prism shown below?

Mathematics
2 answers:
maksim [4K]3 years ago
5 0
<h2>C</h2>

The two-dimensional shapes needed to build the pentagonal prism are 2 pentagons and 5 rectangles.

It has 2 congruent cross-sections that are pentagons, the other 5 faces are rectangles.

Allushta [10]3 years ago
4 0

Answer:

Option C

Step-by-step explanation:

2 pentagons and 5 rectangles are needed to build this pentagonal prism!

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lesya [120]

Answer:

#1 is 30 degrees

#2 is obtuse

#3 is "No rhombuses are rectangles"

#4 is D

#5 is A

Step-by-step explanation:

For #1, we have an angle vertical to 120 degrees which includes a right angle, so we make an equation:

90+x=120

x=30

So angle x is 30 degrees aka. Option A

For #2, obtuse angles have the sum of the square of the side lengths that are less than the square of the hypotenuse. In this case, 6^2+4^2<9^2 or 50<81

For #3, rhombuses have two pairs of congruent sides but no right angles while rectangles have two pairs of congruent sides but they also have right angles.

For #4, they are similar because one of the triangles is dialated by a scale factor of 1.5.

For #5, just think of turning the triangle on its other side, aka. option A

4 0
3 years ago
Read 2 more answers
The function f(x) = (x - 4)(x - 2) is shown below. What is true about the domain and range of the function?​
Arlecino [84]

Answer:

Dom\{f(x)\} = \mathbb{R} (Since polinomial functions are continuous)

Ran\{f(x)\} = [-1, +\infty) (As this quadratic function has an absolute minimum, represented by its vertex)

Step-by-step explanation:

Graphically speaking, quadratic functions are represented by parabolas. In this case, we have a parabola in factorized form. From Theory of Functions, we get that domains of function represents the set of values of x so that exist an image, whose set is known as range is represented by values of f(x).

x is represented by horizontal axis in the figure, whereas f(x) is represented by the vertical axis. By using this approach we get that domain and range of the function are, respectively:

Dom\{f(x)\} = \mathbb{R} (Since polinomial functions are continuous)

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3 years ago
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3 years ago
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Answer:

14cm should be the answer

I guess

3 0
3 years ago
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