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qwelly [4]
3 years ago
9

4 Which of the following is a function? А B C D

Mathematics
2 answers:
Aloiza [94]3 years ago
7 0

Answer:

B)

Step-by-step explanation:

A function is when every input has one output.

Easiest way is to do the "vertical line test" and "horizonal line test."

Basically you draw a vertical line and a horizontal line.

If either line passes through more than one point, then it is not a function.

The only one that passes them is B, the line.

bogdanovich [222]3 years ago
5 0

Answer:

B

Step-by-step explanation:

A function is when every input has one output.

Easiest way is to do the "vertical line test" and "horizonal line test."

Basically you draw a vertical line and a horizontal line.

If either line passes through more than one point, then it is not a function.

The only one that passes them is B, the line.

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4. It was 68.7°F at midday, then it rose 9°F in the afternoon and dropped another 12.3°F by 7:00 p.m. What was the temperature a
Virty [35]

The temperature rose so you add the amount it rose to the starting temperature

68.7 + 9 = 77.7 degrees

It then dropped so mow you subtract t the amount it dropped:

77.7 - 12.3 = 65.4 degrees

The answer is 65.4 degrees

8 0
3 years ago
If two legs of a right triangle are 2 inches and 3 inches, can the hypotenuse be 4 inches? Justify your answer.
Natasha2012 [34]

9514 1404 393

Answer:

  No

Step-by-step explanation:

The only Pythagorean triple that is three integers in sequence is 3, 4, 5.

2, 3, 4 is not a Pythagorean triple (will NOT form a right triangle).

__

A 2-3-4 triangle is an obtuse triangle.

8 0
3 years ago
Read 2 more answers
Y = x + 5<br> y = -2x - 4<br>what are the y and x values please ​
Maksim231197 [3]

Answer:

x=-3, and y=2

Step-by-step explanation:

Since both equations are equal to y, set them equal to each other and solve for x, that way you can solve for y:

x+5=-2x-4

3x+5=-4

3x=-9

x=-3

Plugging in x=-3 into one of the original equations:

y = x + 5

y = -3 + 5

y = 2

Therefore, x=-3 and y=2. You can also write as the ordered pair (-3,2) since that's where the two equations would intercept on a graph.

3 0
3 years ago
Is -28 smaller than -30
Dmitrij [34]

Answer:

Nope!

Step-by-step explanation:

-28 is GREATER than -30.

Hope it helps! :)

4 0
3 years ago
Read 2 more answers
I continue to be bad at math please help me with it
Aleksandr-060686 [28]

Answer:

24

Step-by-step explanation:

There are 4 cups in one US quart, 4*6 is 24.

7 0
3 years ago
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