Answer:
4/3
Step-by-step explanation:
The exponential form is (3x+4)^4=4096
Take the fourth of both sides:
3x+4=plus or mins 8
3x+4=8 or 3x+4=-8
So
3x=4 or 3x=-12
x=4/3 or x=-4 (this sound won't work because 3x+4 becomes neg)
So only sol 4/3.
Step-by-step explanation:
120 or 16 I think sorry if I got it wrong
The total of the scores on the 4 exams must be at least 75 x 4 = 300.
The total scores in the first 3 exams is 68 + 78 + 81 = 227.
Therefore the minimum score needed on the last exam is 300 - 227 = 73.
The answer is a score of at least 73.
Subtract 47.86 from 25.20
Add the answer to the rest of the deposit. Should get $138.98