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AnnyKZ [126]
3 years ago
13

26 less than three times a number is equal to the number. What is the number?

Mathematics
1 answer:
liubo4ka [24]3 years ago
6 0

Answer:

The equation is 26-3x=x.

By solving it we get ,

the number=6.5

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Find the value of x:
slega [8]

Answer:

x = 20

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

Using ΔAHC , then

∠ACH = 180 - (2x + 100) = 180 - 2x - 100 = 80 - 2x

∠ECD = ∠ACB ( vertical angles are congruent ), thus

∠ECD = ∠ACH + ∠HCB, that is

3x = 80 - 2x + x

3x = 80 - x ( add x to both sides )

4x = 80 ( divide both sides by 4 )

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Step-by-step explanation:

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Sis In order to identify the zeros of the function, a student factored the cubic function ()=−−f of , open x close , equals , x
creativ13 [48]

Answer:

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Step-by-step explanation:

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First, we factor out x since it is a common term.

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Next, we factorize the quadratic expression x²-3x-10.

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The correct factorization of the polynomial f(x)=x³-3x²-10x is: f(x)=x(x-5)(x+2)

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