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
zysi [14]
3 years ago
15

3^4x+^2=9^x+^2. what is the value of x?​

Mathematics
1 answer:
klemol [59]3 years ago
5 0

Answer:

x = 1

Step-by-step explanation:

3^(4x + 2) = 9^(x + 2)

Make 9 with base 3.

3^(4x + 2) = (3^2)^(x + 2)

3^(4x + 2) = 3^(2x + 4)

Cancel bases.

4x + 2 = 2x + 4

Subtract 2 and 2x on both sides.

4x - 2x = 4 - 2

2x = 2

Divide 2 on both sides.

x = 1

You might be interested in
A line passes through the point (10,5) and has a slope of 3/2. Write and equation in slope intercept form
ehidna [41]
\bf \begin{array}{lllll}
&x_1&y_1\\
%   (a,b)
&({{ 10}}\quad ,&{{ 5}})\quad 
\end{array}
\\\\\\
% slope  = m
slope = {{ m}}= \cfrac{rise}{run} \implies \cfrac{3}{2}
\\\\\\
% point-slope intercept
\stackrel{\textit{point-slope form}}{y-{{ y_1}}={{ m}}(x-{{ x_1}})}\implies y-5=\cfrac{3}{2}(x-10)\implies y-5=\cfrac{3}{2}x-15
\\\\\\
y=\cfrac{3}{2}x-15+5\implies y=\cfrac{3}{2}x-10
8 0
4 years ago
I will give 30 points if u help now
Amiraneli [1.4K]

Answer:

3. x=16

4. x=51

Step-by-step explanation:

3. 3x-8=x+24

2x=32

x=16

4. 2/3(x+27)= 180-(3x-25)

2/3x+18=180-3x+25

11/3x=187

11x=561

x=51

5 0
3 years ago
Read 2 more answers
Okay guys please y’all really help me ... I never get help
ad-work [718]
Well, Brainly really doesn't like questions that are lifted straight out of exams, tests, or quizzes, so there's only so much I can say.

... You've GOT the formula for the height h at any time t .

... It TELLS you to find t when h=0.

... So write the equation

-16 t^2 + 32 t = 0

and then solve the equation to find t .

You'll find two solutions for t .
One of them is. t=0 .
This reveals the mind-blowing fact that the instant before the rocket was launched, at t=0, the rocket was on the ground.
The other solution for t will tell you how many seconds after launch the rocket is back on the ground.
5 0
3 years ago
Any help please it is a bit hard for me
cestrela7 [59]

Answer:

$190

8

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
The depth of snow after n hours of a snowstorm is represented by the function f(n + 1) = f(n) + 0.8 where f(0) = 2.5. Which stat
Alja [10]
C

"When the storm began", it means it has been snowed for 0 hours, so n=0.
f(0)=2.5, thus the <span>depth of snow was 2.5 inches when the storm began.

f(n+1)=f(n)+0.8, so f(n+1)-f(n)=0.8
it means when the time increases by one hour, the depth of snow increases by 0.8 inches.</span>
4 0
4 years ago
Read 2 more answers
Other questions:
  • I need help is it A B C or D
    13·1 answer
  • The odd- and even - number hotel rooms are on different sides of the hall. Room 231 is between witch two rooms
    8·1 answer
  • There are 100 books in the libary. There are non fiction and fiction books write the fraction of the books that are fiction
    9·1 answer
  • #3 a and b both help answer
    15·1 answer
  • 5. Statistical Literacy What terminology do we use for the probability of
    9·1 answer
  • Charlie is evaluating the product of 0.09 and 0.05. He multiplies, and before placing the decimal, arrives at an answer of 45. A
    13·2 answers
  • Joy and Lane share a 24-ounce bucket of clay. By the end of the week, Joy has used
    11·1 answer
  • Please answer quick! Will give Brainliest, 5 stars, and I will like your answer!!
    9·2 answers
  • Given the sequence 9,6,3,0,..., at what nth term will the number become -24?<br><br>​
    12·1 answer
  • What is the probability that any given car will have a brake failure if it is make a?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!