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
Lapatulllka [165]
3 years ago
5

For what value of x does 64^3x = 512^2x+12

Mathematics
1 answer:
aleksandr82 [10.1K]3 years ago
3 0

Answer:

<h2>no solution</h2>

Step-by-step explanation:

Use:\\\\(a^n)^m=a^{nm}\\--------------\\64=2^6\\512=2^9\\\\\text{therefore}\\\\64^{3x}=512^{2x+12}\\\\(2^6)^{3x}=(2^9)^{2x+12}\\\\2^{(6)(3x)}=2^{(9)(2x+12)}\iff6(3x)=9(2x+12)\\\\18x=9(2x+12)\qquad\text{divide both sides by 9}\\\\\dfrac{18x}{9}=\dfrac{9(2x+12)}{9}\\\\2x=2x+12\qquad\text{subtract 2x from both sides}\\2x-2x=2x-2x+12\\\\0=12\qquad\bold{FALSE}

You might be interested in
A professor grades students on four tests, a term paper, and a final examination. Each test counts as 15% of the course grade. T
Dmitry [639]

Answer:

Marilee wants to earn an "A" in a class and needs an overall average of at least Her test grades are 88 , 92,100 , and 80 . The average of her quizzes is 90 and counts as one test grade. The final exam counts as 2.5 test grades. What scores on the final exam would result in Marilee's overall average of 92 or greater? (See Example 9

4 0
3 years ago
6 1/2 - 3 2/5 please help really need it
tatuchka [14]
Answer is 3 1/10 


6 1/2 - 3 2/5 =
13/2 - 17/5 =
65/10 - 34/10 = 
31/10 = 3 1/10
4 0
3 years ago
Which is the best buy?
olga55 [171]

Answer:

B

Step-by-step explanation:

When you divide each of the prices by the amount of candy bars, B is the lowest. The price for 1 candy bar with A's price is 1.75. The price for 1 candy bar for B's is 1.71. The price for 1 candy bar with C's is 1.73 and the price of 1 candy bar for D's is 1.74. Again, B has the lowest price for 1 candy bar so the correct answer is B.

4 0
3 years ago
Read 2 more answers
What is the value of x? º
attashe74 [19]
X equals 62 because you take 147 and subtract it from 180 and that gives you 33.
then you add 33 and 85 together to give you 118.  Then you subtract 118 from 180 and that gives you 62.
x=62
6 0
3 years ago
Read 2 more answers
1.
iogann1982 [59]
  1. Answer:  Step-by-step explanation: It is 9 1/2– 7 1/3=2 1/3 if that helped give a thumbs up thank you bye.
6 0
3 years ago
Other questions:
  • Can someone help me I’m being timed and this needs to be done quick
    5·1 answer
  • Find the measure of the missing angle of a triangle, if two of its angles are 75 degree and 65 degree respectively. please show
    9·1 answer
  • What else would need to be congruent to show that abc = def by aas
    14·2 answers
  • Which statements are true for the following expression?
    15·1 answer
  • The football team had its photo taken there are 3 rows of 8 players each the fourth row has 6 players how many players are in th
    10·1 answer
  • Find the distance between each pair of points<br> 8) (2, 6), (5, 10)<br> 9) (-3,-10), (-3,5)
    15·1 answer
  • Karen has 16$ to spend on games.if she only spent 14$ what percent of her money did she spend
    14·1 answer
  • How do I write a expression for the sequence in the table? Answer fasts plzz
    8·1 answer
  • Evaluate the function.<br> f(x) = -x2 – 3x + 15<br> Find f(-8)
    7·2 answers
  • I was training the cross country team. Every week I expected the students to run 12 3/4 miles every week. If the kids ran
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!