Which of the following are in scientific notation? 48,200
36 x 10^5
5.23 x 10^-2
0.78 x 10^-3
0.00099
8.7 x 10^-12

5.23x10^-2, 8.7x10^-2

Step-by-step explanation:

Scientific notation is basically any number(eg121) thats divided by the lowest power of 10 before it turns into 0.something(in this case, 1.21), times the power of 10 u need to dived, in this case 10^2.

i got 86 for this

hope this !

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this linear equation would have just one solution.

step-by-step explanation:

the reason why this would have one solution is that it is an expression with just one variable. since that variable is not raised to a power, it will always have just one solution.