Hey, can I get some help with this?

Mathematics

2 answers:

ivanzaharov [21]3 years ago

5 0

Answer:

1.23·10^-7

Step-by-step explanation:

<u>To find the solution:</u>

Make it so that the number, 1.23, is less than ten but more than 1.
Find how many times you have to move the decimal place to get it to the original number. In this case, it is -7 because you are going <em>back </em>which makes it a negative.
Use your amount of spaces needed to go bac as the exponent.
You find your final solution of 1.23·10^-7

algol [13]3 years ago

4 0

Answer:

1.23E7

Step-by-step explanation:

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What is the value of n in the equation 0=18+128n^2?

lbvjy [14]

Answer:

$\large\boxed{\text{no soltion in the set of real numbers}}\\\boxed{n=-\dfrac{3}{8}i\ \vee\ n=\dfrac{3}{8}i\ \text{in the set of complex numbers}}$

Step-by-step explanation:

$18+128n^2=0\qquad\text{subtract 18 from both sides}\\\\128n^2=-18\qquad\text{divide both sides by 128}\\\\n^2=-\dfrac{18}{128}\\\\n^2=-\dfrac{18:2}{128:2}\\\\n^2=-\dfrac{9}{64}$