1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ladessa [460]
4 years ago
8

Solve exponential equations 5x − 2=625

Mathematics
1 answer:
coldgirl [10]4 years ago
6 0

Answer:

<h2>x = 6</h2>

Step-by-step explanation:

5^{x-2}=625\\\\5^{x-2}=5^4\qquad(5^4=5\cdot5\cdot5\cdot5=625)\\\\5^{x-2}=5^4\Rightarrow x-2=4\qquad\text{add 2 to both sides}\\\\x-2+2=4+2\\\\x=6\\\\\text{check:}\\\\5^{6-2}=5^4=625\qquad\bold{CORRECT}

You might be interested in
Help me with number 1. Thank you!
Brums [2.3K]
   4k - 3 = 2k + 5
       + 3          + 3
-------------------------
   4k  =  2k  +  8
  -2k    - 2k                          
-------------------------
   2k = 8
 ------ -----
    2     2
 
    k = 4

You can also do it this way:

   4k - 3 = 2k + 5
 - 4k       - 4k
------------------------
  -3 = -2k + 5
  -5            - 5
------------------------
 -8 = -2k
-----  ------
 -2     -2

4 = k

As you can see, you will get the same answer either way you figure it out :)
6 0
4 years ago
Start 7:05 end 7:33a.m.
WITCHER [35]
That is a 28 minute difference :)
==========================
What you can do to figure these equations or problems out?
Simple, what you need to do is grab the end time, in this case, 7:33 and make it a number, so instead of time, 7:33, its now 733. You do the same to the start time. Then, you Subtract 705 from 733, or more like:
  733
- 705
-------
  028
==========================================================
I hope i helped, please choose brainliest and tag me if you need help :)
5 0
3 years ago
Read 2 more answers
Kelly had of a tank of gas at the
ZanzabumX [31]

Answer: less

Step-by-step explanation: Kelly drank your gas and got sick and sexual with paul

8 0
3 years ago
I have no idea how to do this. I found the answer but now I have to explain it.
Sophie [7]

Answer:

You have 3 + 2 + 2 which is the same as 7 on the other side.

Step-by-step explanation:

3 + 2 + 2 is 7

8 0
3 years ago
Read 2 more answers
Can i have help please
iris [78.8K]

Answer:

hope it helps you.........

6 0
3 years ago
Read 2 more answers
Other questions:
  • The sum of 3 consecutive odd integers is 7 less than 4 times the largest number. Find all 3 #’s plz show work
    5·2 answers
  • What is 17x^2=12x in general quadratic form
    9·1 answer
  • Larry is shipping nails that weigh a total of 53 lb he devised A Nails equally among for shipping boxes how many pounds of nails
    5·1 answer
  • Using the frequency table. what fraction of students passed the test
    6·1 answer
  • The sum of three consecutive terms of an A.P is 18 and their product is 120. Find the terms?​
    14·1 answer
  • 16) Ken earned $128 from his part-time job this summer. He spent 25% of his money on games. He
    5·1 answer
  • Question 4 of 10
    12·1 answer
  • What is the surface area of this triangular pyramid the height is 4 the base and width is 4 and the bottom back line is 4 and th
    6·1 answer
  • HELP PLEASE PLEASE PLEASE
    9·2 answers
  • Choose the graph of the inequality x&gt; -2<br> Choose 1 answer. HELPPPP
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!