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2 years ago

X + 7 = 23 middle school work

Mathematics

2 answers:

Amiraneli [1.4K]2 years ago

5 0

Answer: 16

Step-by-step explanation:

23 - 7 = X

To find X we do the inverse of addition which is subtraction. The 7 cancels out and the 23 becomes a 16. We can even check our answer. 16 + 7 = 23

MatroZZZ [7]2 years ago

4 0

Answer:

X = 16

Step-by-step explanation:

23 - 7 = 16

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According to the Rational Root Theorem, which number is a potential root of f(x) = 9x8 + 9x6 – 12x + 7?

notsponge [240]

Answer-

$\boxed{\boxed{\frac{7}{3}}}$

Solution-

Rational Root Theorem-

$f(x)=a_nx^n+a_{n-1}x^{n-1}+a_{n-2}x^{n-2}+.......+a_1x+a_0\ \ \ and\ a_n\neq 0$

All the potential rational roots are,

$=\pm (\dfrac{\text{factors of}\ a_0}{\text{factors of}\ a_n})$

The given polynomial is,

$f(x) = 9x^8 + 9x^6-12x + 7$

Here,

$a_n=9,\ a_0=7\\\\\text{factors of}\ 9=1,3,9\\\\\text{factors of}\ 7=1,7$

The potential rational roots are,

$=\pm \frac{1}{1},\pm \frac{1}{3}, \pm \frac{1}{9}, \pm \frac{7}{1}, \pm \frac{7}{3}, \pm \frac{7}{9}$

$=\pm 1,\pm \frac{1}{3}, \pm \frac{1}{9}, \pm 7, \pm \frac{7}{3}, \pm \frac{7}{9}$

From, the given options only $\frac{7}{3}$ satisfies.

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2 years ago

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UNO [17]

Answer:

Step-by-step explanation:

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So , clearly, the 5th term will be = $\frac{64*4}{5} =\frac{256}{5}$

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1 year ago

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Answer:

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Answer:

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Step-by-step explanation:

4.003×100

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Xelga [282]

Answer:

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Step-by-step explanation:

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