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Alenkinab [10]
2 years ago
10

What word describes the slope of the line passing through points (5, 12) and (5,-13)?

Mathematics
1 answer:
EleoNora [17]2 years ago
5 0

Answer: undefined

Step-by-step explanation:

\frac{y2-y1}{x2-x1}

\frac{-13-12}{5-5}

\frac{-25}{0}

= undefined

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Use two pints on the graph to find the slope:

(0,0) and (5,1)

Slope = Change in Y over the change in x.

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The slope of the given equation is 0.25 which is greater than 0.20.

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3 years ago
Find each percent change. Round to the nearest tenth of a percent. State if it is an increase or decrease. From 79 miles to 84 m
PolarNik [594]

Answer:

the answer is d.

Step-by-step explanation:

first, you want to use the formula,

new value - original value

<u>____________________</u>

         original value              * 100

you see that 84 is the new value and 79 would be the original value. substitute the numbers in. this is a increase since you will get a positive value.

84 - 79

<u>______</u>

   79      * 100

now we solve it.

5

<u>__</u>

79  * 100

you can either solve the fraction first then multiply that by 100 or multiply the numerator by 100 first then divide that by 79, each way works.

500

<u>____</u>

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      or

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79  = approximately 0.063 (this is not a exact value, just rounded)

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7 0
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Consider the quadratic equation ax^2+bx+5=0,where a, b and c are rational numbers and the quadratic has two distinct zeros.
FrozenT [24]
You have shared the situation (problem), except for the directions:  What are you supposed to do here?  I can only make a educated guesses.  See below:

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Note that for simplicity's sake, we need to assume that the "two distinct zeros" are real numbers, not imaginary or complex numbers.  If this is the case, then the discriminant,    b^2 - 4(a)(c), must be positive.  Since c = 5, 

b^2 - 4(a)(5) > 0, or b^2 - 20a > 0.

Note that if the quadratic has two distinct zeros, which we'll call "d" and "e," then 

(x-d) and (x-e) are factors of ax^2 + bx + 5 = 0, and that because of this fact,

         - b plus sqrt( b^2 - 20a )
d =  ------------------------------------
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and

 </span>         - b minus sqrt( b^2 - 20a )
e =  ------------------------------------
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Some (or perhaps all) of these facts may help us find the values of "a" and "b."  Before going into that, however, I'm asking you to share the rest of the problem statement.  What, specificallyi, were you asked to do here?

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