3 to the power 2x+3 is subtracted by 9 which is equal to 2 times 9 to the power x+1 and is subtrcted by 6

Answers

Answer 1

Answer:

x = -0.5

Step-by-step explanation:

Here we have the sentence:

"3 to the power 2x+3 is subtracted by 9 which is equal to 2 times 9 to the power x+1 and is subtracted by 6"

The first part:

"3 to the power 2x+3 is subtracted by 9..."

This can be written as:

[tex]3^{2x + 3} - 9[/tex]

"... is equal to 2 times 9 to the power x+1 and is subtracted by 6"

[tex]3^{2x + 3} - 9 = 2*9^{x + 1} - 6[/tex]

Let's solve this for x.

First, we can add 9 in both sides:

[tex]3^{2x + 3} = 2*9^{x + 1} - 6 + 9 = 2*9^{x + 1} + 3[/tex]

We also know the relations:

[tex]a^n*a^b = a^{n + b}[/tex]

and

[tex](a^n)^m = a^{n*m}[/tex]

We can write the left part as:

[tex]3^{2x + 3} = 3^{2x}*3^3 = (3^2)^x*3^3 = 9^x*27[/tex]

And the right side as:

[tex]2*9^{x + 1} + 3 = 2*9^x*9 + 3 = 18*9^x + 3[/tex]

Then the equation becomes:

[tex]27*9^x = 18*9^x + 3[/tex]

Now let's move both terms with 9^x to the left side:

[tex]27*9^x - 18*9^x = 3\\[/tex]

[tex](27 - 18)*9^x = 3[/tex]

[tex]9*9^x = 3[/tex]

[tex]9^x = 3/9 = 1/3[/tex]

Now remember that:

Ln(a^b) = b*Ln(a)

Then if we apply the Ln( ) function to both sides, we get:

[tex]Ln(9^x) = Ln(1/3)[/tex]

[tex]x*Ln(9) = Ln(1/3)[/tex]

[tex]x = \frac{Ln(1/3)}{Ln(9)} = -0.5[/tex]


Related Questions

How much will it cost to paint the treasure chest below? A pint of paint can cover 5 ft2 and costs $4.50. You do not need to paint the bottom of the treasure chest.
please show work. its late for geometry and I really need to pass. i will mark brainliest :)

Answers

Answer:

I saw people trolling your answer here is the answer! I am sorry what people are doing to you!

There is a rectangle and a cylinder

5ft cost 4.50

Area is 643

Now

643x4.5

Answer:

Around 2893.5

let me know if this is 160 sheeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeesh this food bussin bussin

Answers

Answer:

32 ounces a day

160 ounces in 5 days

Step-by-step explanation:

have a good day! :)

Answer:

yes 160 would me the correct answer

Step-by-step explanation:

2 multiplyed by 5 = 10

then 10 mutipyed by 16 = 160

During summer, when the snow melts, the water level of the Yukon River increases. If the water level of the river increased by 54 centimeters in 6 days, what is the water level increase rate in centimeters per day

Answers

Answer:

7 centimeters per day.

Step-by-step explanation:

28 centimeters / 4 days = 7 centimeters per day

Answer:

9 centimeters per day

Step-by-step explanation:

54 centimeters / 6 days = 9 centimeters per day

For the past week, your restaurant revenue was $28,675 and your food cost was $9,274. Calculate your gråss margi

percentage (revenue - food cost)lrevenue). Remember to round to the nearest percent.

a) 63%

b) 68%

C) 73%

d) 78%

Answers

Answer: b) 68%

Step-by-step explanation:

Gross margin is used to calculate the amount left of revenue after the costs of goods sold is accounted for.

The formula is:

= (Revenue - Cost) / Revenue

= (28,675 - 9,274) / 28,675

= 0.67658

= 68%

Find the distance between the points (1,8) and (9, 2).
Write your answer as a whole number or a fully simplified radical expression. Do not round.
units

Answers

Answer:

[tex]distance = \sqrt{(x_{1} -x_{2})^2+(y_{1} -y_{2})^2 }\\\\[/tex]

             [tex]=\sqrt{(9-1)^2+(2-8)^2 }\\\\=\sqrt{8^2 + 6^2}\\\\=\sqrt{64 +36 }\\\\=\sqrt{100} = 10units[/tex]

what is the gcf of 150 and 3

Answers

Answer:

3 is the answer

hope this helps

have a good day :)

Step-by-step explanation:

What are two step equations that equal 17?

Answers

Answer:

5x+7=17

Step-by-step explanation:

5x+7=17

   -7    -7

----------------

5x=10

5      5

x=2

5(2)+7=17

10+7=17

17=17

The two step equations that equal 17 are:

1) 3x + 5 = 17

2) 2y - 8 = 17

The two examples of two-step equations that equal 17:

1) 3x + 5 = 17

To solve this equation, we subtract 5 from both sides:

3x + 5 - 5 = 17 - 5

3x = 12

Finally, we divide both sides by 3:

3x/3 = 12/3

x = 4

So the solution to the equation is x = 4.

2) 2y - 8 = 17

To solve this equation, we add 8 to both sides:

2y - 8 + 8 = 17 + 8

2y = 25

Next, we divide both sides by 2:

2y/2 = 25/2

y = 12.5

So, the solution to the equation is y = 12.5.

Learn more about Equation here:

https://brainly.com/question/29657983

#SPJ6

pls show the process

Answers

Here is the on the only. Process

Evaluate the expression below when x = 4, y = 5

3(y-x) + 4y

Answers

Answer:

23

Step-by-step explanation:

Brackets go first, 5 (y) - 4 (x) = 1. Now, 3 x 1 = 3, you do this because of the 3 next to the brackets. Now add them together.

What is the value of the expression?
5 (3+4)
A 19
B) 35
C 12
D) 60

Answers

Answer:

B (35)

Step-by-step explanation:

5 * 3 = 15

5 * 4 = 20

20+15= 35

Answer:

B) 35

Step-by-step explanation:

Solve the equations inside the parenthesis first

so 3 + 4  = 7

now multiply 7 x 5 = 35

| Juan wants to put carpeting in his living
room. The room is 15ft. by 13 ft. The
carpeting will cost $16.99 per square foot.
What is the cost of the carpeting? 2 steps
a) $195.00
b) $3,313.05
c) $2548.50
d) $3,300.00

Answers

Answer: a

Step-by-step explanation:

15.00x13.00=195

3x15.00=45.00

15x10.00=150.00

150.00+45.00=195.00

Can anyone help me I need to find the area, please help

Answers

Answer:

73.46yd²

Step-by-step explanation:

Area of Triangle = ½ * b * h

= ½ * 16 * 19

= 152yd²

Area of Circle= pi * r² = 5² pi = 25 pi = 78.54yd²

area of shaded part= 152 - 78.54

= 73.46yd²

a square tile has width of 1/4 foot. how many tiles will fit end to end along a 4 foot wall
16 tiles
8 tiles
4 tiles
1 tile​

Answers

Answer:

16 tiles

Because there are 4 parts in 4/4 and the  if you have 4 of the four parts that is 16.

fill in the blank 3(2+7a)=6+

Answers

Answer:

[tex]3(2+7a)=6+[/tex]

[tex]6 + 21a = 6[/tex]

[tex]21a + 6 = 6 + 21a[/tex]

answer is 21a

Data collected for 300 fish for north atlantic. The length of the fish (in cm) is summarized in the histogram below.

Answers

Answer:

The lower class limit of the first class is 40

Step-by-step explanation:

Given

See attachment for histogram

Required

The lower limit of the first class

The attached histogram has overlapping interval, and the intervals are:

40 to 60, 60 to 80, 80 to 100, and so on....

The first class here is:

40 to 60

As a general rule; a class is represented by Lower Limit to Upper Limit.

So, by comparison.

Lower Limit = 40

Upper Limit - 60

state whether 0 is a rational number​

Answers

yes it is a rational number

Help me with this please

Answers

I believe the answer would be 200 feet

Write the powerset of the following sets
a) {3,7,9}
b) {a,{ 1,2}}
c) {p,q,r,s}

Answers

a. cardinality means no of elements present in the set.
b. no of proper set = 2^n - 1
c. no of subset = n
2^n = 512
2^n = 2^9
n = 9.
Q. power set:
a. { 3,7,9} = {3,7,9,(3 7),(7 9),(9 3)}

Dave made two boxes. The sides of the second box are each of the sides of the first box How are the volumes of the two boxes related?​

Answers

Answer:

1/9

Step-by-step explanation:

I figured it out

PLS ANYONE HELP ASAP!!!!

Answers

The first one is 2266.66666667
The second one is 200.333333333


[tex] \sqrt{9 {}^{4} } [/tex]

Answers

Answer:

81 is your answer

Step-by-step explanation:

[tex]\sqrt{9^4}[/tex]

[tex]\sqrt{9^2}[/tex]

[tex]= 81[/tex]

Hope it helps..

Have a great day

Answer:

your answer will be 81

Step-by-step explanation:

Thanks for the points

have a nice day!!

The scatter plot suggests a relationship between time and the distance from the destination. The equation of the line of best fit is y=-0.6x+15, and the correlation coefficient is -0.8. Which best describes the correlation between the two variables?

a. weak positive
b. strong positive
c. weak negative
d. strong negative

Answers

Answer:

Strong Negative

Step-by-step explanation:

We already know that the answer is between c and d because the correlation coefficient negative.

We just have to figure out whether it is strong or weak.

In general, anything between -.7 and -1 is considered to have a strong correlation. -.8 is in between -.7 and -1 therefore the correlation is best described as strong negative.

Answer the statistical measures and create a box and whiskers plot for the following set of data.
2, 4, 4, 6, 6, 6, 7, 9, 10, 13, 13, 13, 15



Min:

Q1:

Med:

Q3:

Max:

Answers

Answer:

Min:2

Q1:5

Med:7

Q3:13

Max:15

Step-by-step explanation:

Hope the picture helps. Not the best at drawing haha

I will give brainliest if you get this right

Answers

Answer:

Approximately 8.5 feet

Explanation:

Using Pythagorean Theorem we can say:

6² + 6² = Diagonal²

36 + 36 = Diagonal²

72 = Diagonal²

[tex]\sqrt{72}[/tex] = Diagonal

8.49 (if rounded to the nearest tenths it would be 8.5) = Diagonal

Hope this helps!

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I said "Best friend, put me on that beat" (okay)
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Answers

Answer:

Venmo mee

Step-by-step explanation:

Consider the geometric sequence 8,4,2,1,...

Answers

Answer:

Its A for the function that represents the geomertric sequence

A number c is more than 20 inequality PLEASE HELP NOW IT EASY

Answers

Answer:

c > 20

Step-by-step explanation:

a number c is MORE THAN 20

* replace MORE THAN with ">" *

c > 20

Note: > and "more than" have the same meaning, > is just expressed as an inequality

what is the cube root of 8​

Answers

Answer:

its 2

Step-by-step explanation:

because 2*2*2 is 8

What is the solution to the inequality? 2x-5<17

Answers

Answer:

[tex]x<11[/tex]

Step-by-step explanation:

Hi there!

[tex]2x-5<17[/tex]

Add 5 to both sides

[tex]2x-5+5<17+5\\2x<22[/tex]

Divide both sides by 2

[tex]\frac{2x}{2} < \frac{22}{2} \\x<11[/tex]

I hope this helps!

Brainliest!!!!!marking<—

Answers

Answer:

I believe it would be (c)

Answer:

A

Step-by-step explanation:

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