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3 years ago

Witch one is a function?

Mathematics

2 answers:

mario62 [17]3 years ago

8 0

Answer: A

Step-by-step explanation: I hope I help you if it was wrong I'm sorry

kicyunya [14]3 years ago

5 0

<h3>Answer: Choice D</h3>

This shows a list of points where the x coordinate does not repeat. This means that any given x input leads to exactly one y output.

Something like choice A has x = 6 repeated; showing that x = 6 leads to both y = 11 and y = -9 at the same time. So this is why choice A is not a function. Choice B has x = 1 repeat, so it's not a function either. Choice C has x = 19 repeated, so it's not a function.

As a visual tool, you can use the vertical line test to check each set of points. If you are able to draw a single vertical line through more than one point on the graph, then it is not a function.

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A rectangular hotel room is 4 yards by 7 yards. The owner of the hotel wants to recarpet the room with carpet that costs $58.00

prohojiy [21]

Answer: it will cost him $2204 to recarpet the room.

Step-by-step explanation:

The floor of the room is rectangular. The formula for determining the area of a rectangle is expressed as

Area = length × width

The rectangular hotel room is 4 yards by 7 yards. It means that the area of the rectangular floor would be

Area = 4 × 7 = 28 square yard.

If the cost of the carpet $58.00 per square yard, the total that it will cost to recarpet the room would be

38 × 58.00 = $2204

3 0

3 years ago

Can I have some help with this

Alex_Xolod [135]

$5x - 20 = 4x + 2$

X= a number making both expressions equivalent since the picture shows them being equal.

$5x - 20 = 4x + 2$

1st : We will move the terms.

Note: (anything moved to the other side of the equal sign will change signs)

$5x - 4x = 2 + 20$

2nd : Calculate,

$1x = 22$

1x = x

Meaning 1x and x are the same meaning,

$x = 22$

Now, we must calculate with x being 22...

$5 (22) - 20$

Solve by multiplying first then subtracting,

$110 - 20 = 90$

This means 5x - 20 = 90 and if the two expressions were equivalent then 4x + 2 should also equal 90 yet let's check...

$4(22) + 2$

Solve by multiplying first then subtracting,

$88 + 2 = 90$

$90 = 90$

So both expressions equal 90.

Finally, let's calculate 2x + 6 with 22 as x,

$2(22) + 6$

Solve by multiplying first then subtracting,

$44 + 6 = 50$
---------------------------------------------------------

Answer : x = 22

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

I hope that helps you out!!

Any more questions, please just ask me!!

~ Zoey

3 0

3 years ago

Which best explains whether a triangle with side lengths 2 in., 5 in., and 4 in. is an acute triangle? the triangle is acute bec

jeyben [28]

A triangle with side lengths 2 in., 5 in., and 4 in. is an acute triangle Thus, the triangle is not acute because 2² + 4² < 5².

<h3>What is the acute angle?</h3>

An acute angle is defined as the measure of an angle that is less than 90 degrees.

The square of the hypotenuse of a right triangle with the given sides would be 2² +4² = 20.

So, that hypotenuse would be √20, about 4.47.

The long side of this triangle is longer than that, hence the angle opposite is larger than 90°. The triangle with sides 2, 4, and 5 is an obtuse triangle.

The triangle is not acute because 2² + 4² < 5²

Learn more about acute angle;

brainly.com/question/1311149

8 0

2 years ago

Read 2 more answers

X+1/2+x+2/3-2x-5/7=9

Ksivusya [100]

19/42=9 The input is a contradiction it has no solutions.

6 0

3 years ago

Read 2 more answers