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crimeas [40]
2 years ago
10

What are the domain and range of the function f(x) = -3 (x-5)^2 + 4?

Mathematics
1 answer:
WINSTONCH [101]2 years ago
5 0

Domain=all real numbers

Range is x≤4

Hope this helps :)


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Simplify the following algebraic expression. 3/4(1/2x-12)+4/5​
Nana76 [90]

Answer:

Step-by-step explanation:

(3/8)x - 9 + 4/5

40(3/8x - 9 + 4/5)

15x - 360 + 32

15x - 328

5 0
3 years ago
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One pound equals approximately 454 grams.<br> About how many grams is à pound?
Degger [83]

Answer:

the answer is 453.592

Step-by-step explanation:

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3 years ago
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If 5y = 6x + 16 and 9x = 7y-20, what is the value of 3x - 2y?
Law Incorporation [45]

The value of 3x-2y is -4. From the equation 5y=6x=16 and 9x=7y-20 the values of (x,y) is (4,8).

Step-by-step explanation:

        The given equations are,

                 5y=6x+16.......................(1)

                 9x=7y-20......................(2)

                3x-2y...............................(3)

Step:1

    Modify the equations (1) and (2) in (x+y=constant) format,

                6x-5y=-16.....................(4)

                9x-7y=-20....................(5)

Step:2

     Equation (4) is multiplied by 7     ( ∵ 7×Eqn(4))

                42x-35y=-112..............(6)

Step:3

     Equation (5) is multiplied by 5     (∵ 5×Eqn(5))

               45x-35y=-100.............(7)

Step:4

    Subtracting Equation (6) and (7)

               42x-35y=-112

              45x-35y=-100

    ( - )

     (42x-45x)+(35y-35y)=(100-112)

     (-3x)+(0)=(-12)

    x=4

Step:5

    Substitute X value in Equation (1),

             5y=6x+16...................(1)

     where, x=4,

             5y= (6×4)+16

             5y=40

            y= 8

Step: 6

      Check for solution, substitute x and y values in equation (2).

                9x=7y-20.......................(2)

               (9×4)=(7×8)-20

              36=36

Step:7

      From given, 3x-2y

      where, X=4 and y=8

              3x-2y = (3×4)-(2×8)

                        = 12-16

            3x-2y = -4

Result:

      The value for 3x-2y is -4. The values of (x,y) are (4,8).

   

5 0
2 years ago
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Subject is Math pls help look at the photo :)
Stels [109]
1. 50
2. 154
3. 28
These would be your answers
5 0
2 years ago
-17=x- 15 one step equation
mina [271]

Answer:

-2=x

Step-by-step explanation:

-17=x-15

Add 15 on both sides

-2=x

3 0
3 years ago
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