3 years ago

Solve the following equation or inequality for the unknown variable. Round answer to two decimal places if necessary.

Mathematics

1 answer:

Sonbull [250]3 years ago

3 0

Answer:

x = 2.7

Step-by-step explanation:

The given equation is :

$(3x)^2-10=56$

We need to solve it for x.

It can be rewrite as follows:

$9x^2-10=56$

Adding 10 to both sides,

$9x^2-10+10=56+10\\\\9x^2=66\\\\x=\sqrt{\dfrac{66}{9}}\\\\x=2.70$

So, the value of x is equal to 2.7.

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What is the solution to this equation x/5= -20 A. x=4 B. x=100 C. x=-4 D. x=-100