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3 years ago

Tell whether the three-dimensional object has rotational symmetry about a line and/or reflectional symmetry in a plane.

Mathematics

2 answers:

tekilochka [14]3 years ago

7 0

The correct answer is:

Reflectional symmetry

Explanation:

Rotational symmetry is when a figure can be rotated less than 360° and be in the original orientation. This figure cannot be rotated less than one full turn and look the same, so it has no rotational symmetry.

Reflectional symmetry is when a figure can be folded in half through some line. This figure can be folded in half vertically, so it has reflectional symmetry.

jasenka [17]3 years ago

6 0

In your figure where as ask what kind of symmetry is shown in the figure of your problem and the best answer would be reflectional symmetry. I hope you are satistfied with my answer and if you need some clarification, please feel free to ask for more

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What is the measure of the missing angle?

goblinko [34]

Answer:

The missing angle measures also 110°

Step-by-step explanation:

Let's recall that If the transversal cuts across parallel lines (apparently, this particular case) then those alternate exterior angles have the same measure (.∠ 110° and ∠?) So in the figure given, the two alternate exterior angles measure the same.

The missing angle measures also 110°

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3 years ago

Five boxes of candles contain a total of 60 candles each box holds the same number of candles you have 84 candles how many boxes

maks197457 [2]

There are 12 candles in each box, so the there are a total of 7 boxes

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3 years ago

Read 2 more answers

A professor obtains SAT scores and freshman GPA for a group of 15 college students with the hope that she can predict GPA using

kramer

The hypothesis test analyzes the null and alternative hypothesis of the

plausibility of a correlation between the SAT scores and GPA.

The hypothesis test that would be appropriate is a hypothesis test that checks that the slope of the regression line is not zero.

Reasons:

The data collected by the professor = The scores of the college students

The type of scores collected = SAT scores, and GPA scores

The test that would be appropriate for the example, is the test for the

existence of a significant linear relationship between the input variable

(the SAT scores) and the output variable (the GPA)

The test is known as the test for the slope of the regression line

The equation of the regression line is; Y = B₀ + B₁·X

Where;

Y = The value of the GPA score (The dependent variable)

X = The value of the SAT score (The independent variable)

The test aims to check that the value the slope of the regression line is

much different from zero, such that there exist a correlation.

Learn more about hypothesis test for linear regression here:

brainly.com/question/13938204

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2 years ago

There are 40% more black balls than white balls in a bag.

Paladinen [302]

There is no answer to this question.

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3 years ago

A football is kicked toward the goal. the height of the ball is modeled by the function h(t) = −16t2 64t, where t equals the tim

diamong [38]

The function $H(t) = -16t^2 + 64t$ exists in a parabola.

The axis of symmetry of a parabola exists at the midpoint between the two real roots.

The roots exist the solutions of H(t) = 0

To estimate the roots equation exists $-16t^2 + 64t = 0$

Factor t(-16t + 64) = 0

t = 0 and -16t + 64 =0

-16t + 64 = 0

t = 64 / 16 = 4

t = 4

Then the two roots are t = 0 and t = 4, and the axis of symmetry exists

t = (0+4)/2 = 4/2 = 2

<h3>How to estimate the axis of symmetry?</h3>

The axis of symmetry exists at t = 2.

It represents the time at which the ball is at the higher point, the maximum height.

You can find the maximum height replacing t = 2 in the function H(t)

$H(t) = -16(2^2) + 64(2)$

= 64 feet.

And you can also deduce that the second part of the flight will take 2 seconds, for a total flight time of 4 seconds.

To learn more axis of symmetry refers to:

brainly.com/question/21191648

#SPJ4

8 0

2 years ago