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I am Lyosha [343]
2 years ago
10

2. For the function y = 1/2x + 6, if the input is x = -4, the output is y =

Mathematics
1 answer:
Xelga [282]2 years ago
7 0

Answer:

y = \frac{-1}{2}

Step-by-step explanation:

<u><em>Explanation:-</em></u>

Given the function

             y = \frac{1}{2x +6}

    Put x =-4 in given function

            y = \frac{1}{2(-4) +6} = \frac{1}{-8+6}  = \frac{-1}{2}

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Point R is the midpoint of line QS. R is located at (5, -7.5) S is located at (-1,-13) What is the location of Point Q?
Lisa [10]

Answer: ( 11, -2 )

Step-by-step explanation:

The mid point of a line is calculated using the formula:

M = (\frac{x_{1}+x_{2}}{2} , \frac{y_{1}+y_{2}}{2} )

From the question , the mid point is already given , substituting , we have :

(5 , - 7.5 ) = (\frac{x-1}{2} , \frac{y-13}{2} )

Equating the x component to x and the y component to y , we have

5 = \frac{x-1}{2}

x - 1 = 10

x = 11

Also

- 7.5 = \frac{y-13}{2}

-15 = y - 13

-15 + 13 = y

Therefore : y = -2

Therefore : the location of point P is ( 11, -2 )

7 0
3 years ago
Express x^2+4x-7 in the form (x+a)^2-b where a and b are integers
lukranit [14]

Answer:

(x + 2)^2 - 11.

Step-by-step explanation:

f(x) = x^2 + 4x - 7

Now x^2 + 4x = (x + 2)^2 - 4 so we have:

f(x) = (x + 2)^2 - 4 - 7

f(x) = (x + 2)^2 - 11.

4 0
2 years ago
How do you round 25.691 to the greatest place explain
spayn [35]

In order to round 25.691 to the greatest place or the nearest whole number, first start at the last digit behind the decimal, in the case, being the 1. When it comes to things like this, if the digit is 4&under meaning its the number 4,3,2,1 or 0. If it is 5&up, that means it could be 5-9, making the digit go up (but if its 2, then the digit just goes away, you wont have to worry about that one specific number).

Next step is to round the 9 which makes the 6 go up one digit (meaning it turns into a 7). Now, when you round the seven, it will make the whole number go up one digit, but if you want to round that as well, to start, it's first rounding equaled up to 26. If you're rounding it to a whole tens number, it would be 30. I hope that this helps you understand this subject or topic much better! :3

7 0
3 years ago
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Benjamin drove a distance of 301.5 miles in
slava [35]

Answer: 67 miles per hour

Step-by-step explanation: v = \frac{s}{t} where v is velocity, s is space and t is time;

\frac{301.5 miles}{4.5 h} = 67

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3 years ago
What is the following product
Artemon [7]

Answer:

B

Basically your dividing.

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