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Tomtit [17]
3 years ago
10

Which ones are correct please help me.

Mathematics
2 answers:
Angelina_Jolie [31]3 years ago
6 0
<h3>2 Answers: Choice A and choice C</h3>

======================================================

Explanation:

AB = BC refers to the fact that expressions 2x+7 and 4x-3 are equivalent. They represent numbers when we replace x with some number. So after doing that replacement, we have something in the form number = number.

So this is why choice A is one of the answers.

\overline{AB} \cong \overline{BC} says "segment AB is congruent to segment BC". The horizontal lines over the lettering indicates we have a segment. The equal sign with a squiggle over top is the congruence symbol. In geometry, we say two items are congruent if they are the same. You can think of making a clone of the object and then sliding it over. In this case, we've cloned segment AB to form segment BC.

This is why choice C is the other answer.

--------------

Choices B and D are close, but not quite correct. Choice B is missing the segment markers. Choice D is missing the congruence symbol. Congruence and equality are very similar ideas, so often they get mixed up.

jeka943 years ago
5 0

Answer:

I think it's the third choice because line segments are congruent and not equal. Line segments also have little lines on top of the letters.

Step-by-step explanation:

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MariettaO [177]

Answer:

Step-by-step explanation:

A) The equation for the volume of a sphere is V=\frac{4}{3} \pi r^{3}

As the diameter of each ball is 3 inches, that would mean that the radius of each is 1.5 inches.

Now we can plug our value into the equation

V=\frac{4}{3} \pi (1.5)^{3}

This would simplify to

V = 14.12716694 in^{3}

B) The equation for the volume of a cylinder is V=d\pi h

As there are 3 balls in a container and the diameter of each is 3, that would mean that the height is 9 inches

Now we can plug in our values into the equation

V = (3)(9)\pi

This would mean that this equation would simplify to

V = 27\pi in^{3}

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This would mean that the equation would look like this

(27\pi)-(3(\frac{4}{3} \pi (1.5)^{3}))

This would simplify to

42.41150082 in^{3} of empty space.

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3 years ago
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Answer:

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Step-by-step explanation:

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