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dusya [7]
3 years ago
15

4^(x-1)+4^(x)+4^(x-1)=84

Mathematics
1 answer:
creativ13 [48]3 years ago
3 0

Answer:

7.66

Step-by-step explanation:

Just open the parenthesis.

4x-4+4x+4x-4=84

Now simplify and solve

12x-8=84

12x=92

x= 7.66

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7 0
2 years ago
terry opened a savings account in December with $132 and saved $27 each month beginning in January the value of terrys account i
liq [111]
Let S be the amount in a savings account. 
Let m be the number of months.

General equation
S = 132 + 27m

Specific question
July is the 7th month of the year including both January and July.
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S = 321

Reasonableness?
Good question. You could estimate an answer.
Start with 150 dollars and say that you add 25 a month.
7 * 25 = 175
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4 0
3 years ago
PLEASE HELP ASAP
Shtirlitz [24]

Answer:

i think its photosinthisis because...

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Hope this helps and maybe a brainlest?

8 0
3 years ago
Rick needs to be at school at 8:15 A.M. It takes him 20 minutes to walk to school.At what time dose he need to leave to get to s
Rom4ik [11]
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7:55am is 20 minutes before 8:15am.
5 0
3 years ago
If the original statement is in the form "If a, then b," then the inverse is in the form "_____" answers attached
Zanzabum

Answer:

If not a then not b

Step-by-step explanation:

Probably gonna want to watch a video that goes over everything.  Or do a  search online for converse, inverse and contrapositive.  

3 0
3 years ago
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