2 years ago

3^x-3^(x-2)=A*3^x solve for A

Mathematics

1 answer:

ale4655 [162]2 years ago

3 0

Answer:

$a=\frac{8}{9}$

Step-by-step explanation:

$3^x-3x^{x-2} =a3^x$

Divide both sides by $3^x$ :

$3^{x-x}-3^{x-x-2}=a$

Simplify:

$3^0-3^{-2}=a\\a=1-\frac{1}{9} \\a=\frac{8}{9}$

You might be interested in

An angle measures 24º more than the measure of its complementary angle. What is the

notsponge [240]

Answer:

33, 57

(not 100% sure this is correct)

Step-by-step explanation:

90= x +(24 +x)

(drag 90, plus the x's and drag the 24)

90 = 2x + 24

(Subtract 24 from 24 and 90 from 24)

66 = 2x

(Divide both by two)

33 = x

(now use x and plus it by 24)

24 + x = 57

3 0

2 years ago

Please solve I need help brain list to correct and first

natima [27]

Answer:

It C

Step-by-step explanation:

6y-2y is 4y and 4y+ 8y is 12y

6 0

2 years ago

Read 2 more answers

Please help me! I will mark brainliest!

Elenna [48]

Answer:

Your picture didn't load?

Step-by-step explanation:

3 0

2 years ago

Math graph and solution y=3x2+18x-21

Likurg_2 [28]

We have that

y=3x²+18x-21

using a graph tool
see the attached figure

the solutions are
x=-7
x=1

6 0

2 years ago

HELP PLEASEEE!!

Luden [163]

$\left[\begin{array}{ccc}2&6&3\\-5&1&4\end{array}\right]$

R1 ÷ 2 = $\left[\begin{array}{ccc}1&3&1.5\\-5&1&4\end{array}\right]$

R2 ÷ -5 = $\left[\begin{array}{ccc}1&3&1.5\\1&-0.2&-0.8\end{array}\right]$

R2: R1 - R2 = $\left[\begin{array}{ccc}1&3&1.5\\0&3.2&2.3\end{array}\right]$

R2 ÷ 3.2 = $\left[\begin{array}{ccc}1&3&1.5\\0&1&0.71875\end{array}\right]$

R1: R1 - 3R2 = $\left[\begin{array}{ccc}1&0&0.65625\\0&1&0.71875\end{array}\right]$

Answer: x = 0.65625, y = 0.71875

8 0

2 years ago