2^2 + 3*4 may be evaluated using order of operations (PEMDAS) rules. We must do the exponentiation first, followed by the mult., and only then the add'n.
2^2 + 3*4 = 4 + 12 = 16
Answer:
A
Step-by-step explanation:
<span>Let the number of hours she works be x
2x+15 15 more than twice the
3x-15 15 less than 3 times the hours she worked
2x+15=3x-15
3x-2x= 30
x= 30
the number of hours she worked is 30
</span>
<span>10!/5! =10*9*8*7*6=30,240;;
If order is not considered, 10C5 =10!/5!5!=252 </span>
The answer for #1 and 2
1)B 5.007x10 -3
2)B 103,150