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yarga [219]
3 years ago
15

Given the equation 5 + x - 12 = x- 7.

Mathematics
1 answer:
marusya05 [52]3 years ago
8 0

Answer:

Step-by-step explanation:

5 + x - 12 = x- 7 (Add the 5 and -12 to simplify)

x - 7 = x - 7        (notice its the same on both sides of equal sign. Add 7 to both                    sides)

x = x

solution is all real numbers

Part B

5 - 4 - 12 = -4 - 7

-11 = -11

5 + 0 - 12 = 0 - 7

-7 = -7

5 + 5 - 12 = 5 - 7

-2 = -2

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(3x² - 4x+8) + (-7² - 27-8)
iragen [17]

Answer:

3x^ - 4x - 76

Step-by-step explanation:

4 0
3 years ago
Find the average rate of change of the function f(x)=(3/-3x-5), on the interval x ∈ [0,3]
Svet_ta [14]

Answer:

The average rate of change on the given interval is 9/70

Step-by-step explanation:

Here, we are to find the average rate of change of the function on the given interval

We proceed as follows;

on an interval [a,b] , we can find the average rate of change using the formula;

f(b) - f(a)/b-a

From the question;

a = 0

b = 3

f(0) = -3/5

f(3) = -3/14

Substituting the values, we have;

-3/14-(-3/5)/3-0

= 3/5-3/14/3

= (42-15)/70/3

= 27/70/3

= 27/70 * 1/3 = 9/70

4 0
2 years ago
Write the equation of the parabola in vertex form. Vertex (2,1), point (3, -4)
Ket [755]

Answer:

U=1-5(x-2)^2

Step-by-step explanation:

The equation of the parabola with vertex (h,k) is y=a(−h+x)2+k

Thus, the equation of the parabola is y=a(x−2)2+1

To find a, use the fact that the parabola passes through the point (3,−4): −4=a+1

Solving this equation, we get that a=−5

Thus, the equation of the parabola is y=1−5(x−2)^2

6 0
3 years ago
Round 123,949 to the underlined point. 4 is highlighted
ehidna [41]

\\ \sf\longmapsto 123,949

  • 9 is greater than 5

\\ \sf\longmapsto 123,95

  • 5=5

\\ \sf\longmapsto 123,9

  • 9 is greater than 5

\\ \sf\longmapsto 124

  • 4 is less than 5

\\ \sf\longmapsto 12

  • 2 is less than 5

\\ \sf\longmapsto 1

Note

Write the number until underlined point.I did it till end

5 0
3 years ago
Read 2 more answers
2g + h =2<br>g -h= -5<br><br>find g and h step by step explanation​
wel

Answer:

Step-by-step explanation:

2g + h = 2 --------------(I)

g - h = -5------------(II)

   g = -5 + h

Plugin g = -5 + h in equation (I)

  2(-5 + h) + h = 2              {Distributive property:a(b+c) = a*b +a*c}

(-5)*2 + h *2 + h= 2

-10 + 2h  + h    = 2

             3h = 2 + 10

       3h = 12

         h = 12/3

h = 4

Substitute h= 6 in equation (I)  

2g + 4 = 2

    2g = 2 - 4

    2g = -2

      g = -2/2

g = -1

6 0
3 years ago
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