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umka21 [38]
3 years ago
13

PLSS HELPPP!!! IN ORDER TO RECIEVE A BRAINLY, ANSWER QUICKLY AND CORRECTLY, AND MOST OF ALL, GIVE AN EXPLANATION!!! TYSM IN ADVA

NCE!! <3
For the function h(x) = 9 + 6x , what is the domain of function h if the range is {−12, −3, 15, 24}?

A. {−3.5, −2, 1, 2.5}
B. {−3, 6, 24, 33}
C. {−63, −9, 99, 153}
D. {−0.5, 1, 4, 5.5}
Mathematics
2 answers:
max2010maxim [7]3 years ago
8 0
C

If you where to plug in -12 in the equation, you would get -63. If you were to plug in -3, you would get -9. If you were to plug in 15, you would get 99. And if you were to plug in 24, you would get 153.
-12 * 6 = -72
-72 + 9 = -63

-3 * 6 = -18
-18 + 9= -9

15 * 6 = 84
84 + 9 = 99

24 * 6 = 144
144 + 9 = 153
Natalija [7]3 years ago
7 0

Answer:

A. {−3.5, −2, 1, 2.5}

Step-by-step explanation:

Remember that the range is the possible values for Y in any given function, so in this case, we are given the Y values and we have to solve the function for x:

y=9+6x

6x=y-9

So we just insert the values, the first one being -12.

So since from the options only A has -3.5 as an option that's the correct answer.

hoped this helped! <3

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3 years ago
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3 years ago
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Gracie, Mary, and Nancy each have a small collection of seashells. Gracie has 5 more than times the number of shells Mary has. N
Zielflug [23.3K]

Answer:

3/2 x +1 = 5/4x - 5

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3/2 x+1−5/4

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Step 2: Subtract 1 from both sides.

1/4x+1−1=−5−1

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Step 3: Multiply both sides by 4.

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Step-by-step explanation:

1.   2 3/4 x 16 = 44 + 6 = 50 shells   x= 16    

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We see the side workings in bold as if Mary has 24 and Nancy has 1x more

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                           2 3/4 x 18 = 49 1/2 + 6 = 55 1/2  x= 18

2.  2 3/4 x 16 = 44 -4 = 40 shells  x = 16  2 3/4 x 24 = 66 - 4 = 62   x = 24

                            2 3/4 x 18 = 49 1/2 - 4 = 45 1/2   x = 18

3.   2  3/4 x 16 = 44 + 4 = 48 shells x = 16  2 3/4 x 24 = 66 + 4 = 70  x = 24                

2 3/4 x 18 = 49 1/2 + 4 =53 1/2  x = 18

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2 years ago
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