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ch4aika [34]
4 years ago
10

Which equations are true?

Mathematics
1 answer:
blagie [28]4 years ago
8 0

Answer:

C. none of the above

Step-by-step explanation:

A. x - (- x) is <em>the equivalent of x + x</em>, because subtracting a negative number is the same as adding it's positive counterpart. Therefore, <em>it will be 2x, not -x</em>.

B. Same thing. But this time, 0 - (- x) is the same as 0 + x, which is x, not -x.

Because <em>neither are right</em>, the only answer is C.

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X | f(x)
katovenus [111]

Answer:

Option B.

Step-by-step explanation:

If the value of function is 0 at x=c, then c is a root or zero of the function. It means the graph of function intersect x-axis at its zeroes.

From the given table it is clear that the value of function are

x  |  f(x) | Sign

2.0 |  2.8  | Positive  

2.5 |  1.1    | Positive

3.0 | –0.8 | Negative

3.5 | –1.2  | Negative

4.0 | –0.3 | Negative

4.5 |  0.7  | Positive

The sign of values of function changes in interval 2.5-3.0 and 4.0-4.5.

It means, the graph of function must intersect x-axis in interval 2.5-3.0 and 4.0-4.5. So, the zeros of the function lie between 2.5 and 3.0 and between 4.0 and 4.5.

Therefore, the correct option is B.

5 0
4 years ago
The graph represents a population of bacteria over a number of days, modeled with an exponential function. Based on the graph, w
Natalka [10]

Answer:

The answer is B

Step-by-step explanation:

I got a 100% on the quiz

5 0
4 years ago
Helpppppppppppppppppppppp meeeeeeeeeeeee plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
IceJOKER [234]

Answer:

A (-2, 3)

Step-by-step explanation:

-2-3=-5

-2+3=1

3 0
3 years ago
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Should be easy hopefully........​
RideAnS [48]

Answer:

Step-by-step explanation:

Point A represents the integer 5.

Point B                                        -8

Point C                                        -15

Point D                                         18

4 0
3 years ago
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The rational number halfway between 2/4 and 1/8
galben [10]

Answer:

one third or 0.333333...

Step-by-step explanation:

a rational number is a number that can be written as a ratio between two numbers. they an be repeating like 1/3 or terminating like 1.36.

6 0
4 years ago
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