9^x + 9^x-1 = 30 what's the value of x​

Answers

Answer 1
small (x)
9(x) + 9(x) - 1 = 30
2 x 9(x) - 1 = 30
2 x 9(x) = 30 + 1
2 x 9(x) = 30
simplify
9x = 31/2
x = 1/2 x log (3) (31/2)
or
x ≈ 1.24741

Related Questions

The data set shows how many points mark scored in each basket ball game he played this seasons. 1,4,4,5,5,8,8,10,11,11,14,15,16

Answers

Answer:

Mean: 8.62

Median: 8

Step-by-step explanation:

I'm guessing that what you need is the mean or median so

1+4+4+5+5+8+8+10+11+11+14+15+16=112

112/13=8.62

Mean: 8.62

Median: 8

all combined is 112, the mean should be 8.62 and median 8

-5y < -15 Help Me Please​

Answers

Answer:

y>3

Step-by-step explanation:

-5y<-15

-5/-5<-15/-5

y>3

y can equal anything more than 4. the products value has to be greater than 15, but it has to be on the negatives

Plz help me!!
I have no clue how to do this because my teacher moves to fast for me. If you can help out that would be really appreciated!!

Answers

Answer:

1. x = 65

2. x = 40

3. x = -7

4. x = -4

5. x = -7

6. x = 4

Step-by-step explanation:

Angles in a triangle always add up to 180 degrees.

Thus, for each triangle you can write an equation setting the sum of the three angles equal to 180, and solving for x.

1. 180 = 80 + 35 + x

   180 - (80 + 35) = x

   180 - 115 = x

   65 = x

2. 180 = 70 + 70 + x

   180 - (70 + 70) = x

   180 - 140 = x

   40 = x

3.  180 = 76 + 41 + (x+ 70)

    180 - (76 + 41) = x + 70

    180 - 117 = x + 70

    63 = x + 70

    63 - 70 = x

    -7 = x    

4. (the red square means its a right angle = 90 degrees)

   180 = 90 + 25 + (x + 69)

   180 - (90 + 25) = x + 69

   180 - 115 = x + 69

   65 = x + 69

   65 - 69 = x

   x = -4

5. 180 = 50 + (57 +x) + (x + 87)

   180 - 50 = (57 +x) + (x + 87)

    130 = (57 +x) + (x + 87)

  combine like terms

  130 =  144 + 2x  

  130 - 144 = 2x

  -14 = 2x

   -7 = x

6. 180 = 80 + (9x + 4) + (16x - 4)

   180 - 80 = (9x + 4) + (16x - 4)

   100 = (9x + 4) + (16x - 4)

   combine like terms

    100 = 25x + 0

    100 = 25x

    4 = x


Question 1
Use the following information to answer the question.
A laundry basket has 24 t-shirts in it. Four are navy,
12 are red, and the remaining are white.
1 point
1. What is the probability of randomly selecting a red shirt

Answers

Answer:

The probability is 1/2.

Step-by-step explanation:

There are 24 T-shirts in total and 12 is half of 24, the probability is 1/2.

I'm not sure about answer...

The probability of randomly selecting a red shirt is 50%.

Step-by-step explanation:

To figure this out, separate the total number of shirts into fractions based on the color. So for example, it would look something like this: Navy shirts are 4/24, Red shirts are 12/24, and White shirts are 8/24. The probability for each of the colors would be; Navy-16.666 percent, Red-50 percent, White-33.333 percent. Since we are only looking for the probability of selecting a Red shirt, the probability would be 50%.

What is the area of this triangle?

A=bh2


54 cm²

90 cm²

108 m²

216 m²

I will give brainlest and 5/5 stars to the first person I see

Answers

Answer:

area = 1/2 *base* height

= 1/2 * 12* 9

= 54 cm^2

right triangle...

Hope this helps...

PLEASE HELP ME match the equations at the bottom of the screen to the graph.TYSM

Answers

Answer: It's given in the equations.

Step-by-step explanation:

First One

f(x) = -2^x

Second

f(x) = -4(2)^x

Third

f(x) = 4(2)^x

Fourth

f(x) = 2^x

What is the area of the composite shape?

Answers

Answer:

290[tex]mi^{2}[/tex]

Step-by-step explanation:

You can divide this shape in a variety of ways, but I am going to divide it into a rectangle and a square. First, to find the area of the square, multiple 6 by 5, and get 30[tex]mi^{2}[/tex]. Next, to find the area of the big rectangle, multiply 20 by 13 and get 260[tex]mi^{2}[/tex]. Finally, add 30 and 260 and get a final answer of 290[tex]mi^{2}[/tex].

What is the area of the shaded region in the figure shown below?

Answers

Answer:

9cm^2 I think

Step-by-step explanation:

L = 3

W = 3

3•3=9

What is 3(2x +7x - 5 )

Answers

Answer:

x = 15/27

Step-by-step explanation:

3(2x + 7x - 5)

Distribute the 3

6x + 21x - 15

Combine like terms

27x - 15 = 0

27x = 15

x = 15/27

Answer:

27x - 15 is your expression

Step-by-step explanation:

3 x 2x = 6x and 3 x 7x = 21x so 21x + 6x = 27x and 3 x 5 = 15 so 27x - 15 is your expression

fill in the missing parts: 1/3 of ..... is 1/27

Answers

Answer:

Abhay Patel

Roll 1

class 4th

una fracción equivalente a 3/4​

Answers

Answer:

6/8

Step-by-step explanation:

Multiplica el numerador y el denominador por el mismo número para obtener una fracción equivalente

Can y’all help me a question 25?!

Answers

Answer:

19.8839 miles away

Step-by-step explanation:

:)

Which statement best explains the relationship between
lines AB and CD?
They
Le
parallel because their slopes are equal.
They are parallel because their slopes are negative
reciprocals.
They are not parallel because their slopes are not
equal.
They are not parallel because their slopes are
negative reciprocals.

Answers

Answer:

A. parallel because their slopes are equal.

Step-by-step explanation:

because parallel means matching

meaning they have the same slope


URGENT PLS HELP IF YOU KNOW THE ANSWER


Tyra's family went on a trip to Canada. Tyra had $25 in United States currency to exchange for Canadian dollars. For every one US dollar, Tyra received 1.17 Canadians dollars. ​

Answers

25x1.17=29.25 since every America dollar is 1.17 Canadian dollars just multiply 25 by 1.17
$21.37; divide 25 by 1.17

If you monthly salary is 5,167 and 28% is withheld for taxes and social security. How much money will be withheld from your check?

Answers

Answer:

jjjjjjj

Step-by-step explanation:

nnnnnnn

i need helppppppppppp

Answers

Answer:

157

Step-by-step explanation:

157
Give me brainliest thank you!

Let f(x) = - 3x – 1 and g(x)=x2 + 1.
Find (fog)(-4).

Answers

What?????????????????????? Mmmm
The answer is -52 and here is the process to solve it too, hope it helps!

The bowl has a diameter of 10 inches. What is its radius?


Answers

Answer:

r = 5 inches

Step-by-step explanation:

because if your trying to find the radius from the diameter you divide by 2

radius= 5

radius is always half the diameter

Find the measure of the arc or central angle indicated. Assume that lines which appear to be
diameters are actual diameters.

Answers

D it is d I’m pretty sureeeee

heyyyyyy besties plz answer this question correctly and u will get brainliest plz thanks

Answers

Answer:

Nicole is more expansive

Step-by-step explanation:

x for Rhonda replaced by 2 = 21. X for Nicole replaced by 2=24

Nicole is more expansive


Find the length of side w.

43.6 cm
18.0 cm
36.5 cm
21.4 cm

Answers

Answer:

It's 36.5

Step-by-step explanation:

Amy and Roger both wash windows at a large downtown building. Amy can wash 25 windows in 4 hours. Roger can wash 32 windows in 6 hours.


washes windows faster.

Answers

Roger washes windows faster if u was multiplying and Amy can was faster if u was dividing. Choose the one u feel is good for the question.

AMY washes the  widows faster than roger

mark brainliest pls i did this in class yesterday

Wheel I has diameter 24.9 in. Wheel II has diameter 21.0 in. Round the diameter of each wheel to the nearest inch. About how much farther will Wheel I travel in one​ rotation? Use 3.14 for π.

Answers

Answer:

76

Step-by-step explanation:

because the other guy said so

5/12+8/12 I need help

Answers

[tex]\frac{13}{12}[/tex] is the answer

Hope this helps

1 1/12 because 8+5=13 13/12= 1 1/12

what is the mean average of these five number [2,4,5,6,8]​

Answers

Answer:

5

Step-by-step explanation:

Add each number up and then divide by how many numbers there are in this set (5)

2+4+5+6+8=25

25/5=5

PLEASE HELP!!!!!


Todd and his friends are painting 5 equal sections of a wall. The wall is 10 feet tall, but its length
is unknown.
Each section will be a different color, so they need to know the area of each section.
10 ft
Total length unknown (x)
1. Write an expression for the total area of the wall. Explain how you came up with your
expression.
Write your answer in the space below.
2. To find the area of each section, what do you need to do to the total area?
Write your answer in the space below.
3. Write an expression for the area of each section of the wall.
Write your answer in the space below.

Answers

5 (10 x X) because to get area you do like the times width so it’s 10 times X and theres five sections

If you have the total area you just need to divide by five to find the area of each section

10 times X is an expression for the area of each section of the wall because it’s just the length times the width of the wall segment

What is m angle H + m angle J?

Answers

Answer:

180°

Step-by-step explanation:

The measure of an inscribed angle (inscribed inside a circle) is half the measure of its inscribed arc.

m∡H = (1/2)(m arc GJI)

m∡J = (1/2)(m arc GHI)

m∡H + m∡J = (1/2)(m arc GJI + m arc GHI)

But those two arcs added together on the right side are the whole circle, so they add to 360°.

m∡H + m∡J = (1/2)360°

m∡H + m∡J = 180°

An item is on sale for $56. If this price represents a 25% discount from the original price, what is the original price?

Answers

9514 1404 393

Answer:

  $74.67

Step-by-step explanation:

Let p represent the original price. Then the relation is ...

  $56 = p - 0.25×p

  $56 = 0.75p

  $56/0.75 = p ≈ $74.67

The original price was $74.67.

20. Rafael has a business selling computers. He buys computers from the manufacturer for $450
each and sells them for $800. Each month, he must also pay fixed costs of $3000 for rent and
utilities at his store. If he sells n computers in a month, which of the following equations can be used
to calculate his profit?
A. P = n(800 - 450)
B. P = n(800 - 450 - 3000)
C. P = 3000n(800 - 450)
D. P = n(800 - 450) - 3000
E. P = n(800 - 450) + 3000
Yeah

Answers

Answer: D , p = n (800 - 450) - 3000

Step-by-step explanation: Firstly, you have to account for how much money Rafael is making off of each computer (800 - 450). That factor is then multiplied by the variable "n" which represents the amount of computers sold. Lastly, since this is an equation to calculate his monthly profits, you have to subtract the rent that he is paying ($3000) from the total profit that he made off of selling the computers. Therefore, giving you the equation

P (profit) = n (amount of computers sold) (800-450) - 3000 (rent).

The equation that represents Rafael's monthly profit selling 'n' numbers of computers is D. P = n(800 - 450) - 3000.

What is an equation?

An equation represents equality for the terms that are on the both side of the equal sign.

Given Rafael buys computers for 450 dollars and sells them for 800 dollars each.

He also had to pay 3000 dollars for rent and utilities for the store and the number of computers sold in each month is given by 'n'.

∴ The equation that represents his profit(P) in a month is,

P = n(800 - 450) - 3000.

learn more about equations here :

https://brainly.com/question/10413253

#SPJ2

Alexa bought 3 umbrellas for a total of $18. What was the unit rate for each umbrella?

Answers

6 because you divide 18/3 =6
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