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Varvara68 [4.7K]
3 years ago
6

From the set {-252, -64, 64}, use substitution to determine which value of x makes the equation true.

Mathematics
1 answer:
Effectus [21]3 years ago
3 0

9514 1404 393

Answer:

  x = 64

Step-by-step explanation:

I find it easier to solve the equation, which requires 1 operation. Substituting 3 numbers requires 3 operations, so is 3 times the work. (I'm basically lazy.)

  4x = 256 . . . . given

  x = 256/4 = 64 . . . . the last of the listed values

__

Alternatively, you can let a graphing calculator or spreadsheet try the list of values for you. That result is attached.

_____

Since you know the rules of signed multiplication, you know that x must be positive. Only one answer choice is positive, so you really only need to try one number.

  4(64) = 256 . . . . true, so x = 64

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Answer:

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Step-by-step explanation:

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The domain of the function is all<br> The range of the function is all
kondaur [170]

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7 0
3 years ago
What value of x makes the equation true?<br> -1=1 – 4(-5+4x) – 4x
cluponka [151]

Answer:

x = 11/10

Step-by-step explanation:

we have from statement:

-1=1 - 4(-5+4x) – 4x

we apply distributive property:

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so we have:

-1= 1+20 -16x -4x

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so we have:

x=22/20

x=11/10

we can substitute the x value found:

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4 0
3 years ago
Write out the sample space for the given experiment. Use the following letters to indicate each choice: O for olives, M for mush
tigry1 [53]

Answer:

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Step-by-step explanation:

Given

Salad                               Meats                      Dressings

O = Olives                     S = Shrimp                 I = Italian  

M = Mushroom              E = Egg                     H = Honey mustard

To determine the sample space, we simply select one from each column.

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Sample Space = {(OSI), (OSH), (OEI), (OEH), (MSI), (MSH), (MEI), (MEH)}

3 0
3 years ago
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