2 years ago

Find the value of x in the equation 2^x -4x=0

Mathematics

2 answers:

Savatey [412]2 years ago

7 0

Answer:

wouldnt the value of x be r?

arsen [322]2 years ago

5 0

X≈0.3 and x=4! hope this helps!

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A cube has a volume of 125 in3. find the side length of this cube in inches.

Novay_Z [31]

Answer:

5 inches

Step-by-step explanation:

The formula for a cube's volume is its side length cubed. So to get the side length when given the volume, you can take the cube root of the volume. $\sqrt[3]{125} = 5$ inches.

8 0

2 years ago

Could I solve this inequality by completing the square? How would I do so?

sammy [17]

Answer:

$\large\boxed{x>-2+\sqrt{14}\ \vee\ x$

Step-by-step explanation:

$x^2+4x>10\\\\x^2+2(x)(2)>10\qquad\text{add}\ 2^2=4\ \text{to both sides}\\\\x^2+2(x)(2)+2^2>10+4\qquad\text{use}\ (a+b)^2=a^2+2ab+b^2\\\\(x+2)^2>14\Rightarrow x+2>\sqrt{14}\ \vee\ x+2-2+\sqrt{14}\ \vee\ x$