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Tju [1.3M]
2 years ago
13

Select all the equations that have {4} as its solution set. 5 + 2x = 3x + 37−x=12x79−3x=12x+19x2+3=10x−21

Mathematics
2 answers:
Salsk061 [2.6K]2 years ago
6 0

Answer:

Option 3 (79−3x=12x+19)

Step-by-step explanation:

When replacing x with 4 you will get the answer 67 = 67, which is true! The other three options are not true when replacing x with 4.

natta225 [31]2 years ago
4 0

Answer:

green

Step-by-step explanation:

green

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8 0
3 years ago
If (62)x = 1 what is the value of x? Explain your answer.
Alex
Whenever you solve an equation with a single variable you need to isolate the variable by itself on one side of the equal sign.  Just be sure that whatever operations you perform on one side you perform on the other sides as well.

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4 years ago
Find the third degree function that has zeros 7 and −11i, and a value of 663 when x=10.
slega [8]

Answer:

y = x^3 - 7x^2 + 121x + 847

Step-by-step explanation:

If -11i is a zero, its conjugate also is a zero, so the zeros are:

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So we can write the third degree function as:

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663 = a(10-7)(10^2+121)

663 = a(3)(221)

a = 663/663 = 1

So the function is:

y = (x-7)(x^2+121)

y = x^3 - 7x^2 + 121x - 847

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