3x = -7 Divide both sides by 3. 3 goes into seven twice with one-third left over. Since it's a negative seven, the answer will also be negative.
x = -2 $\frac{1}{3}$

8 0

3 years ago

Help me please thanks in advance

Xelga [282]

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From up to down ;

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The first box :

$f(n) = 3. ({2})^{n - 1}$

The second box :

$f(n) = 2. ({4})^{n - 1}$

The third box :

$f(n) = 2. ({6})^{n - 1}$

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4 0

3 years ago

Which one of these is ordered from greatest to least?

Mama L [17]

Answer:

the answer would be C :)

8 0

4 years ago

Simplify the radical Sqrt 84x^7

pentagon [3]

Answer:

$\large\boxed{\sqrt{84x^7}=2x^3\sqrt{21x}}$

Step-by-step explanation:

$Domain:\ x\geq0\\\\\sqrt{84x^7}=\sqrt{4\cdot21\cdot x^{6+1}}\\\\\text{use}\ a^n\cdot a^m=a^{n+m}\\\\=\sqrt{4\cdot21\cdot x^6\cdot x^1}\\\\\text{use}\ \sqrt{ab}=\sqrt{a}\cdot\sqrt{b}\\\\=\sqrt4\cdot\sqrt{21}\cdot\sqrt{x^{3\cdot2}}\cdot\sqrt{x}\\\\\text{use}\ (a^n)^m=a^{nm}\\\\=2\cdot\sqrt{21}\cdot\sqrt{(x^3)^2}\cdot\sqrt{x}\\\\\text{use}\ \sqrt{a^2}=a\ \text{for}\ a\geq0\\\\=2\cdot\sqrt{21}\cdot x^3\cdot\sqrt{x}=2x^3\sqrt{21x}$

6 0

3 years ago